HKC - Haldex Fan Clutch 2010 - CARQUEST Auto Parts

Issued: 2/1/2010Catalog #: CQ-10001 HKCMfg Code: HKCFleet Solutions - Fan Clutch Application Guide2010 2009

Table of Contents12−FAN CLUTCHES12 − Fan ClutchesTable of Contents12−1Part Number Index12−3General InformationForeword12−4Core Return Guidelines12−5Application Guidelines12−6Horton Components12−12Horton Repair Kit Reference12−14Horton® Fan ClutchesCaterpillar, Cummins, & Detroit in MCI Applications (HT/S Advantage TM )12−15Caterpillar 3176 (Model S & HT/S Advantage TM )12−16Caterpillar 3306 (HT/S Advantage TM )12−17Caterpillar 3406 (Model S & HT/S Advantage TM )4 Belt Groove 12−186, 8, 10K Multi−Groove 12−20Caterpillar 3406, 3406B (Direct Drive)12−21Caterpillar 3406, 3406E, C11, C13, C15 & C16 (DriveMaster®)12−22Cummins (EC450®)12−23Cummins "C" Series (Model S)12−24Cummins ISB (DriveMaster®)12−25Cummins ISL (DriveMaster®)12−26Cummins ISM (DriveMaster®)12−27Cummins ISX (DriveMaster®)12−28Cummins ISX (HT/S Advantage TM )12−29Cummins ISX & N14 (HT/S Advantage TM )12−30Cummins L10 Series (Direct Drive)12−31Cummins L10 Series (Model S & HT/S Advantage TM )12−32Cummins L10 & N14 (Model S)12−34Cummins Ford NTC Series (Model S)12−35Cummins NT, NTC (Direct Drive)12−36Cummins NTC, NT88, 444 Series (Model S & HT/S Advantage TM )12−37Cummins N14 Series (Model S & HT/S Advantage TM )12−38Detroit 6V92, 8V92, 8V71, 6V71 & 12V71 Series (Model S)12−39Detroit 60 Series (Direct Drive)12−40Detroit 60 Series (DriveMaster®)12−41Detroit 60 Series (Model S & HT/S Advantage TM )3 & 4 Belt Groove 12−426, 10, 14K Multi−Groove 12−4312 − 1

12−FAN CLUTCHESTable of ContentsMack ASET AI (DriveMaster® Two−Speed) 12−44Volvo VE D12 (DriveMaster PolarExtreme®)12−45Kysor TM /Borg Warner Style Fan Clutches12−46Gold Top® Kits12−47Horton® Fan Clutch Components/Repair KitsMajor Overhaul Kits12−48Super Kits12−49Seal Kit12−50Facing/Liner Kit12−51Spacers & Adapters12−52Thermal Switches12−53Solenoid Valve & Filter12−54Fan Blades12−55Kysor TM /Borg Warner Style ComponentsKysor TM /Borg Warner Style Kits and Components12−56Temperature Controls/Shutterstats12−57MaintenanceTroubleshooting12−58Troubleshooting12−59Troubleshooting12−6212 − 2

Part Number Index12−FAN CLUTCHESPart Number Type Page #RF14200K S 12−47RF142561K S 12−47RF14256K S 12−47RF142SK S 12−47RF145K S 12−47RF14LK S 12−47RF14SBLK S 12−47RF14SK S 12−47RF35029 S 12−57RF35030 S 12−57RF35031 S 12−57RF36029 S 12−57RF36030 S 12−57RF36031 S 12−57RF790000X S 12−37RF790001X S 12−38RF790002X S 12−37RF790003X S 12−39RF790004X S 12−39RF790005X S 12−18RF790007X S 12−18RF790008X S 12−35RF790009X S 12−42RF790010X S 12−32RF790011X S 12−42RF790012X S 12−24RF790013X S 12−24RF790014X S 12−16RF790015X S 12−16RF790016X S 12−32RF790017X S 12−32RF790018X S 12−42RF790021X S 12−34RF790023X S 12−32RF791000X S 12−37RF791001X S 12−32RF791002X S 12−18RF791003X S 12−18RF791004X S 12−38RF791005X S 12−18RF791006X S 12−38RF791007X S 12−18RF791008X S 12−18RF791009X S 12−38RF791010X S 12−38RF791011X S 12−42RF791012X S 12−17RF791013X S 12−18RF791014X S 12−18RF791015X S 12−16RF791016X S 12−37RF791017X S 12−18RF791018X S 12−32RF791019X S 12−38RF791020X S 12−18RF791021X S 12−32RF791022X S 12−32RF791023X S 12−43RF791024X S 12−42RF791025X S 12−16RF791026X S 12−38RF791027X S 12−18RF791028X S 12−17RF791029X S 12−32RF791030X S 12−32RF791031X S 12−43RF791032X S 12−32RF791033X S 12−43RF791034X S 12−32RF791035X S 12−16RF791036X S 12−32RF791037X S 12−42RF791038X S 12−20RF791039X S 12−15RF791040X S 12−15RF791041X S 12−15RF791069X S 12−20RF791073X S 12−30RF791076X S 12−20RF791093X S 12−29RF799011X S 12−27Part Number Type Page #RF799065X S 12−41RF799067X S 12−41RF799103X S 12−22RF799168X S 12−28RF799223X S 12−41RF799334X S 12−22RF799339X S 12−22RF799437X S 12−22RF799809X S 12−22RF80001X S 12−46RF80005X S 12−46RF8000KCK S 12−56RF8000KSK S 12−56RF8101K S 12−56RF8201K S 12−56RF8202K S 12−56RF8203K S 12−56RF8204K S 12−56RF85001X S 12−46RF85002X S 12−46RF85003X S 12−46RF8500KCK S 12−56RF8500KLK S 12−56RF8500KSK S 12−56RF88001X S 12−46RF88003X S 12−46RF8800KCK S 12−56RF8800KLK S 12−56RF991762202 S 12−55RF991762502 S 12−55RF991813253 S 12−55RF991900 S 12−31RF991902 S 12−36RF991903 S 12−36RF991918 S 12−21RF991933 S 12−36RF992013 S 12−40RF993249 S 12−54RF993272 S 12−54RF993273 S 12−54RF993280 S 12−54RF993282 S 12−54RF993284 S 12−54RF993286 S 12−54RF993287 S 12−54RF993293 S 12−54RF993294 S 12−54RF993295 S 12−54RF993296 S 12−54RF993343 S 12−54RF993412 S 12−54RF993427 S 12−54RF993428 S 12−54RF993603 S 12−53RF993605 S 12−53RF993606 S 12−53RF993607 S 12−53RF993610 S 12−53RF993615 S 12−53RF993616 S 12−53RF993617 S 12−53RF993619 S 12−53RF993625 S 12−53RF993626 S 12−53RF993630 S 12−53RF993653 S 12−53RF993654 S 12−53RF993655 S 12−53RF993658 S 12−53RF993665 S 12−53RF994002 S 12−54RF994039 S 12−52RF994040 S 12−52RF994052 S 12−52RF994053 S 12−52RF994072 S 12−52RF994073 S 12−52RF994074 S 12−52RF994105 S 12−55RF994116 S 12−55RF994117 S 12−55Part Number Type Page #RF994155 S 12−55RF994156 S 12−55RF994205 S 12−50RF994305 S 12−49RF994307 S 12−49RF994314 S 12−48RF994315 S 12−48RF994319 S 12−51RF994322 S 12−49RF994343 S 12−49RF994346 S 12−50RF994349 S 12−51RF994900 S 12−49RF994985 S 12−49RF996019 S 12−23RF996048 S 12−23RF999110 S 12−25RF999285 S 12−41RF999416 S 12−26RF999801 S 12−28RF999809 S 12−22RF999820 S 12−45RF999947 S 12−44Part Number Type Page #Type "O" = OEM P/N, Type "S" = Service P/NIf OEM part # is not found on page listed, refer to the MCR for applicable cross reference.12 − 3

12−FAN CLUTCHESForewordPURPOSE OF THIS SECTIONThis section is designed as a reference for Haldex Commercial Vehicle Systems new and remanufactured air brake systemcomponents and accessories, sold under the Haldex and Midland product names. Products described include all pertinentinformation needed to replace an OEM installed component or to help design an original installation. If there is a servicenumber for a given part, it is noted in the product number table.DESIGN FLEXIBILITYThe products presented in this section are described by function and usage. Technical data and mounting configurationsare also provided. Throughout this section, reference is made to numerous specific OEM applications. This section is not,however, intended to be a mutually exclusive listing of all part numbers and designs available. Should the need for a designnot presented occur, contact your Haldex Commercial Vehicle Systems sales representative for additional information.WARRANTY INFORMATIONProper service and repair are important to the safe, reliable operation of any motor vehicle. To prevent personal injuryand/or vehicle damage, careful and cautious service procedures recommended by the vehicle manufacturer should befollowed by anyone servicing a motor vehicle. For details on warranty of Haldex Commercial Vehicle air brake systemcomponents and accessories, refer to L20221 Aftermarket Warranty Policy. For warranty returns, use L90005 WarrantyAdjustment Form. To obtain further information, visit the www.haldex.com website, select North America/English in dropdown box then search for Warranty.ORDERING PROCEDUREMost customers can place electronic orders on the www.haldex.com website by obtaining a username and password or byusing EDI. For additional information about electronic orders or to place an order by phone or fax, contact CustomerService in U.S. or Canada at numbers listed below:U.S. Customer Service:Canada Customer Service:Phone: 800−643−2374 Phone: 800−267−9247Fax: 800−533−1941 Fax: 519−621−3924Mail: Commercial Vehicle SystemsHaldex Brake Products CorporationAttn: Customer Service Department10930 N. Pomona Ave.Kansas City, MO 64153Mail:Commercial Vehicle SystemsHaldex LimitedCanadian Distribution CentreAttn: Customer Service Department500 Pinebush Road, Unit 1Cambridge, Ontario N1T 0A5IMPORTANT NOTICEThe data listed herein is correct to the best of Commercial Vehicle Systems knowledge and belief, having been compiledfrom reliable and official sources of information. However, COMMERCIAL VEHICLE SYSTEMS CANNOT ASSUME ANYRESPONSIBILITY for possible error or misapplication of the product. Final determination of the suitability of the productsfor the use contemplated by the Buyer is the sole responsibility of the Buyer. Commercial Vehicle Systems shall have noresponsibility in connection with this suitability. It is not our intention to imply that any of the components in this catalog inconnection with an engine make or model are made by any engine manufacturer.Copyright 2010Commercial Vehicle SystemsHaldex Brake Products Corporation10930 N. Pomona Ave.Kansas City, MO 64153All rights reserved.Materials may only be reproduced with written permission of Commercial Vehicle Systems.12 − 4

Core Return Guidelines12−FAN CLUTCHESWHAT YOU NEED TO LOOK FOR:1. Core is complete and not disassembled. The fan clutch core must include a bracket, sheave, PFD (pistonfriction disk),and an air chamber.2. The fan clutch core cannot be broken, cracked, welded or galled.3. The sheave and air chamber must spin freely.4. Core has not been damaged by non−operational causes such as fire, rust, or rough handling.5. The fan clutch core must be a part number specified by Haldex that is acceptable for exchange.APPLICABLE CREDIT:1. If none of the above conditions exist (1, 2, 3 or 4), full credit is applicable.2. If any one of the above conditions exist, fifty percent (50%) credit is applicable.3. If two or more of the above conditions exist, no credit is applicable.Refer to Core Policy L00036 for additional information on core credits, core returnprocedures, core changes, core acceptance, core refunds, and freight.PRINCIPLE COMPONENTPARTS:PROCEDURES FOR CORE IDENTIFICATION:A. Sticker Check A "Good" core should have a product number which matches the listed acceptableproduct numbers. (If sticker is not available, go to steps B & C).B. Visual Check A "Good" core should match match one of the graphics and notes listed on thefollowing pages.CASTING NUMBER LOCATIONS:SheaveBracketAir ChamberOn the edge of the back rimFront surface near shaftFront surface (smooth type has no casting numbers)12 − 5

12−FAN CLUTCHESApplication GuidelinesVEHICLEMODEL & YEAR ENGINE MAKE & MODEL OEM #BLUEBIRDHORTONREMANNUMBERMIDLANDSERVICENUMBER1988 & UP, School Bus Cummins C−Series 980008FORD790012 RF790012X1974−86, CL90001973 & UP, L9000, W90001977 & UP, CL90001974 & UP, L90001975 & UP, W−WT90001978 & UP, CL9000Caterpillar 3406Cummins PT270, NTC SeriesCummins NTC SeriesDetroit Diesel 8V71, 6V92Detroit Diesel 8V71T, TT, TA,6V92T, TT 8V92TADetroit Diesel 6V92TT, 8V92TT990058990019990026990031990031990031790005790008790002790003790003790003RF790005XRF790008XRF790002XRF790003XRF790003XRF790003XFREIGHTLINER10/88 & UP, ALL1988 & UP, ALL1989 & UP, ALL1989 & UP, ReplacesHT550 & D.H.1990 & UP, ALL1975 & UP, ALL1987 & UP, ALL1988 & UP, ALL1989, COE &Conventional1990 & UP, FLD1121989 & UP, ALL1970 & UP, ALL1975 & UP, ALL1988 & UP, ALLCaterpillar 3176Caterpillar 3406 ATTACCaterpillar 3406 ATAACCaterpillar 3406Caterpillar 3306Cummins NTC SeriesCummins NTC Series, BigCam IVCummins NTC SeriesCummins L−10Cummins L−10Cummins L−10Detroit Diesel 8V71N & TDetroit Diesel 8V92T, TA, 8V71Detroit Diesel 60 Series990083991022991021−991050990026991015991084990006990092990007990031990047990041790015791008791007791013791012790002791016791009790010790016790017790003790004790009RF790015XRF791008XRF791007XRF791013XRF791012XRF790002XRF791016XRF791009XRF790010XRF790016XRF790017XRF790003XRF790004XRF790009X12 − 6

Application Guidelines12−FAN CLUTCHESVEHICLEMODEL & YEAR ENGINE MAKE & MODEL OEM #HENDRICKSONHORTONREMANNUMBERMIDLANDSERVICENUMBER1975 & UP, ALL Detroit Diesel 8V71N & T,6V92TT, 8V92TINTERNATIONAL990031790003 RF790003X1988 & UP, 8000 Series,9400 & Paystar4/1974 & UP, 4070B,Transtar II1975 & UP, 4200−4300Conventional Transtar II1981−82, C09670 & Eagle1983 & UP, C09670 & Eagle1984 & UP, 9370Conventional8/86−11/86, 9370, 96701987 & UP, 9300, 9600& 97001987 & UP, 94001973−74, 4200−4300Conventional Transtar II1973 & UP, Paystar 50001974 & UP, 4070B Transtar IINTC 290, 350, NTA 4001975 & UP 4100 Conco1981 & UP, C09670 & EaglePaystar 5050, 50701985 & UP, S−Series, 83001988 & UP, 9300, 9600& 97001986 & UP, ALL1991 & UP, 80001991 & UP, 8000, 90001994 & UP, 80001973 & UP, Paystar 5000Caterpillar 3176Caterpillar 3406Caterpillar 3406Caterpillar 3406Caterpillar 3406Caterpillar 3406Caterpillar 3406 ATAACCaterpillar 3406 ATAACCaterpillar 3406Cummins Super 250, 270,NTA 370Cummins Super 250Cummins Super 250Cummins F290/NTC 290,350, 400Cummins NTC 400Cummins NTC SeriesCummins B.C.IVCummins NT88Cummins L−10Cummins L−10Cummins N14Cummins N14Detroit Diesel 6V92,8V92, 8V71N & T991023990058−990058990063−991007991016991032990012990023990023990026990012990012991001991001991000991039991044991106990031791015790005790005790005790005790005791002791003791017790000790001790001790002790000790000791000791000791001791018791019791026791003RF791015XRF790005XRF790005XRF790005XRF790005XRF790005XRF791002XRF791003XRF791017XRF790000XRF790001XRF790001XRF790002XRF790000XRF790000XRF791000XRF791000XRF791001XRF791018XRF791019XRF791026XRF790003X12 − 7

12−FAN CLUTCHESApplication GuidelinesVEHICLEMODEL & YEAR ENGINE MAKE & MODEL OEM #INTERNATIONAL (Cont.)HORTONREMANNUMBERMIDLANDSERVICENUMBERALL, 4070B, Transtar II,4100 Conco1978 & UP, S−22251983 & UP, Paystar 50001983 & UP, C09670 & Eagle1983 & UP, 4200 & 4300,9370 Conventional1991 & UP, 94001991 & UP, 9600, 9700Detroit Diesel 8V92, 8V71N& T, 6V92TTDetroit Diesel 6−71Detroit Diesel 6V92, 8V71, 8V92Detroit Diesel 6V92, 8V71TTA,8V92Detroit Diesel 6V92 Not TurboChargedDetroit Diesel 60 SeriesDetroit Diesel 60 Series990031990031990032990034990032991062991061790003790003790003790003790003791023791031RF790003XRF790003XRF790003XRF790003XRF790003XRF791023XRF791031XKENWORTH1988 & UP, ALL1992 & UP, T−4501975 & UP, ALL1988 & UP, T−600ALL, W900B, T600A, T8001990 & UP, T−600, T−8001992 & UP, T−600, T−8001974 & UP, ALL1975 & UP, ALL1985 & UP, T−6001985 & UP, T−600ALLALL, T−400A, T−4501970−74, ALL1975 & UP, ALL6V92, 6V71, 12V71ALL, 4 GR. SCaterpillar 3176Caterpillar 3176Caterpillar 3406Caterpillar 3406Caterpillar 3406Caterpillar 3406Caterpillar 3406Cummins NTA, NTC SeriesCummins NTA, NTC SeriesCummins NTC, BC III & IVCummins NTC, BC III & IVCummins L−10 OACCummins C−SeriesDetroit Diesel 6V71, 8V71TDetroit Diesel 8V71N, T,8V92N, TDetroit Diesel 60 Series990081991082990058990062991009991046991076990012990026991004991005990006990080990032990048990041790014791025790005790007791005791020791014790000790000791004791006790010790013790003790004790009RF790014XRF791025XRF790005XRF790007XRF791005XRF791020XRF791014XRF790000XRF790000XRF791004XRF791006XRF790010XRF790013XRF790003XRF790004XRF790009X12 − 8

Application Guidelines12−FAN CLUTCHESVEHICLEMODEL & YEAR ENGINE MAKE & MODEL OEM #KENWORTH (Cont.)HORTONREMANNUMBERMIDLANDSERVICENUMBER1990 & UP, 4 GR. HT/S1990 & UP, ALL1990 & UP, ALL1988 & UP, ALLDetroit Diesel 60 SeriesDetroit Diesel 60 SeriesDetroit Diesel 60 SeriesCaterpillar 3176991051990099991064990081791011790018791024790014RF791011XRF790018XRF791024XRF790014XMACK1976 & UP, ALL 1:11976 & UP, ALL 1.2:11976 & UP, ALL 1:11976 & UP, ALL .8:1Cummins NTC SeriesCummins NTC, NTA 400DDC 8V71N, T, 6V92TT, 8V92TDDC 8V71N, T, TV92T, 12V71990012990026990031990047790000790002790003790004RF790000XRF790002XRF790003XRF791004XMARMON1975 & UP, ALL1975 & UP, ALLALL1975 & UP, ALLALLCaterpillar 3406Cummins NTC 290, 335, 350,NH 230, Super 250Cummins L−10DDC 8V71N, T, 6V92TT, 8V92TDDC Series 60990058990023990006990031990077790005790001790010790003790009RF790005XRF790001XRF790010XRF790003XRF790009XOSHKOSH1975 & UP, ALL Cummins NTC Series 990026PETERBILT790002 RF790002X1992 & UP, 320 CementTruck1975 & UP, Conventional && COE1972−74, ALL1975 & UP, Conventional& COE1985 & UP, 375, 377, 379Caterpillar 3306Caterpillar 3406Cummins NTC SeriesCummins NTC 230−350Cummins NTC @2 230, 250991090990059990012990026991040791028790005790000790002791010RF791028XRF790005XRF790000XRF790002XRF791010X12 − 9

12−FAN CLUTCHESApplication GuidelinesVEHICLEMODEL & YEAR ENGINE MAKE & MODEL OEM #PETERBILT (Cont.)HORTONREMANNUMBERMIDLANDSERVICENUMBER1986 & UP, ALL1988 & UP, 3204/78 & UP, Conventional& COE 1:11975 & UP, Conventional& COE .8:1ALL1976 & UP, ALL .8:1Cummins L−10Cummins C−SeriesDDC ALL "V" EnginesDDC ALL "V" EnginesDDC 60 SeriesDDC 8V71N & T, 8V92T,12V71990006990080990032990048990077990047790010790013790003790004790009790004RF790010XRF790013XRF790003XRF791004XRF790009XRF791004XVOLVO WHITE GMC1976−1985ALL, WCA1975 & UP, Autocar1976 & UP, Volvo White1976 & UP, General1991 & UP, ALLALL, Astro DR1975 & UP, Autocar 1:11975 & UP, Autocar 1.2:11975 & UP, Autocar .8:11985 & UP, AutocarALL, WC, WJ, WI, WX1991, ALL 1:11991, ALL 1.2:11975 & BEFORE, HV & JV9500 Conventional1975 & UP, Autocar 1:11975 & UP, Autocar 8:1Caterpillar 3306Caterpillar 3176Caterpillar 3406Caterpillar 3406Caterpillar 3406Caterpillar 3406Caterpillar 3406Cummins NTC SeriesCummins NTC SeriesCummins NTC SeriesCummins L−10Cummins L−10Cummins L−10, N14Cummins L−10, N14DDC 6V53DDC 8V71N & T, 6V92TT,8V92TDDC 8V71N & T, 8V92T, 12V71990810990089990059990059990060991067990060−990023990026990006990006991056991055−990031990047791012790014790005790005790005791027790005790000790001790002790010790010791021791022790003790003790004RF791012XRF790014XRF790005XRF790005XRF790005XRF791027XRF790005XRF790000XRF790001XRF790002XRF790010XRF790010XRF791021XRF791022XRF790003XRF790003XRF790004X12 − 10

Application Guidelines12−FAN CLUTCHESVEHICLEMODEL & YEAR ENGINE MAKE & MODEL OEM #VOLVO WHITE GMC (Cont.)HORTONREMANNUMBERMIDLANDSERVICENUMBER1978 & BEFORE, DP95021988 & UPALL, Road Boss IIALL, W−GDDC 12V71 Astro/TitanDetroit Diesel 60 SeriesDetroit Diesel ALL "V" Engines,Road Commander II,Road Expediter IIDetroit Diesel 60 Series−990040990048990077790004790011790004790009RF790003XRF790011XRF791004XRF790009XWESTERN STAR1976 & UP, ALL1975 & UP, ALL1975 & UP, ALL 1:1Caterpillar 3406Cummins NTC SeriesDDC 8V71N & T, 6V92TT, 8V92T990058990026990031790005790002790003RF790005XRF790002XRF790003X12 − 11

12−FAN CLUTCHESHorton ComponentsPneumatic Fan Clutch ControlsSolenoid Valve IllustrationsRF993249RF993272RF993282RF993293 and RF00329412 − 12

Horton Components12−FAN CLUTCHESPneumatic Fan Clutch ControlsSolenoid Valve IllustrationsRF993284RF993286RF993295RF993296RF993427RF99342812 − 13

HORTON FAN CLUTCH TO REPAIR KIT QUICK REFERENCESTANDARD PART # ADVANTAGE PART # MINOR SEAL KIT PART #MAJOR KIT PART#SUPER KIT PART #RF590000XRF590001XRF590002XRF590003XRF590004XRF590005XRF590007XRF590008XRF590009XRF590010XRF590011XRF590012XRF590013XRF590014XRF590015XRF590016XRF590017XRF590018XRF591000XRF591001XRF591002XRF591003XRF591004XRF591005XRF591006XRF591007XRF591008XRF591009XRF591010XRF591011XRF591012XRF591013XRF591014XRF591015XRF591016XRF591017XRF591018XRF591019XRF591020XRF591021XRF591022XRF591023XRF591024XRF591025XRF591026XRF591027XRF591028XRF591029XRF591030XRF591031XRF591032XRF591033XRF591034XN/AN/AN/AN/AN/AN/AN/ARF790000XRF790001XRF790002XRF790003XRF790004XRF790005XRF790007XRF790008XRF790009XRF790010XRF790011XRF790012XRF790013XRF790014XRF790015XRF790016XRF790017XRF790018XRF791000XRF791001XRF791002XRF791003XRF791004XRF791005XRF791006XRF791007XRF791008XRF791009XRF791010XRF791011XRF791012XRF791013XRF791014XRF791015XRF791016XRF791017XRF791018XRF791019XRF791020XRF791021XRF791022XRF791023XRF791024XRF791025XRF791026XRF791027XRF791028XRF791029XRF791030XRF791031XRF791032XRF791033XRF791034XRF791035XRF791036XRF791037XRF791038XRF791039XRF791040XRF791041XRF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994205RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994314RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994315RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994307RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF994342RF99434212−FAN CLUTCHESHorton Repair Kit Reference12 − 14

Horton® Fan Clutches12−FAN CLUTCHESCaterpillar, Cummins, & Detroit in MCI Applications (HT/S AdvantageВ)SKU#RF791039XRF791040XRF791041XProductDescription2 Groove Reman.Caterpillar, Cummins,Detroit, AdvantageSeries (Model HT/S)2 Groove Reman.Caterpillar, Cummins,Detroit, AdvantageSeries (Model HT/S)2 Groove Reman.Caterpillar, Cummins,Detroit Diesel,Advantage Series(Model HT/S) in MCIApplicationsA A1 B C D E G H DriveRatioApprox.WeightCoreGroup7.27" 8.77" 6.33" 1.75" 3.50" 2.00" 3.17" 3.17" 1:1 46 lbs. FC10H17.27" 9.25" 6.33" 1.75" 3.50" 2.00" 3.17" 3.17" 1:1 48 lbs. FC10H16.95" 9.25" 6.33" 1.75" 3.50" 2.00" 3.17" 3.17" 1:1 48 lbs. FC10H112 − 15

12−FAN CLUTCHESHorton® Fan ClutchesCaterpillar 3176 (Model S & HT/S AdvantageВ)8K Poly V, 1V Belt GrooveSKU#RF790014XRF790015XRF791015XRF791025XRF791035XProductDescriptionReman.Caterpillar 3176AdvantageSeries (ModelS)Reman.Caterpillar 3176AdvantageSeries (ModelS)Reman.Caterpillar 3176AdvantageSeries (ModelHT/S)Reman.Caterpillar 3176AdvantageSeries (ModelHT/S)Reman.Caterpillar 3176AdvantageSeries (ModelHT/S)A A1 B C D E F G H DriveRatio7.50" 7.75" 5.21" 1.08" 6.00" 5.00" 5/16−18TAP6.25" 9.00" 7.07" 1.08" 3.50" 2.00" 1.25"2.50"2.75"7.50" 7.75" 6.08" 1.08" 6.00" 5.00" 5/16−18TAP7.50" 7.75" 6.08" 1.08" 6.00" 5.00" 5/16−18TAPApprox.WeightPic.#CoreGroup2.00" 2.32" 1:1 40 lbs. 1 FC00H12.00" 2.32" − 40 lbs. 2 FC00H12.00" 2.32" 1.2:1 44 lbs. 3 FC10H12.00" 2.32" − 44 lbs. 3 FC10H16.25" 9.00" 6.72" 1.08" 3.50" 2.00" 1.00" 2.00" 2.32" 1.12:1 45 lbs. 4 FC10H112 − 16

Horton® Fan Clutches12−FAN CLUTCHESCaterpillar 3306 (HT/S AdvantageВ)SKU#RF791012XRF791028XProductDescriptionReman.Caterpillar 3306AdvantageSeries (ModelHT/S)Reman.Caterpillar 3306AdvantageSeries (ModelHT/S)A B C D E F G H BeltGroove7.16" 6.86" 1.93" 3.50"6.00"1.99"2.00"4.99"5/16−18TAP1.50"2.50"8.00" 6.86" 1.93" 3.50" 1.99" 2.00"2.50"DriveRatioApprox.WeightCoreGroup7.00" 4.00" 5 − 44 lbs. FC10H17.00" 4.00" 4 0.8:11:144 lbs. FC10H112 − 17

12−FAN CLUTCHESHorton® Fan ClutchesCaterpillar 3406 (Model S & HT/S AdvantageВ)4 Belt Groove12 − 18

Horton® Fan Clutches12−FAN CLUTCHESSKU#RF790005XRF790007XRF791002XRF791003XRF791005XRF791007XRF791008XRF791013XRF791014XRF791017XRF791020XRF791027XProductDescription4 GrooveReman. CAT3406Advantage Ser.(Model S)4 GrooveReman. CAT3406Advantage Ser.(Model S)4 GrooveReman. CAT3406Advantage Ser.(Model HT/S)4 GrooveReman. CAT3406Advantage Ser.(Model HT/S)4 GrooveReman. CAT3406Advantage Ser.(Model HT/S)4 GrooveReman. CAT3406Advantage Ser.(Model HT/S)4 GrooveReman. CAT3406Advantage Ser.(Model HT/S)4 GrooveReman. CAT3406Advantage Ser.(Model HT/S)4 GrooveReman. CAT3406Advantage Ser.(Model HT/S)4 GrooveReman. CAT3406Advantage Ser.(Model HT/S)4 GrooveReman. CAT3406Advantage Ser.(Model HT/S)4 GrooveReman. CAT3406Advantage Ser.(Model HT/S)A A1 B C D E F G H DriveRatio8.50" − 7.28" 2.31" 3.50" 1.99" 1.50"2.00"2.50"3.25"7.50" − 7.28" 2.31" 3.50" 1.99" 1.50"2.50"7.08" − 7.28" 2.32" 3.50" 1.99" 2.00"2.50"Approx.WeightPic.#CoreGroup10.00" 5.00" 0.88:1 52 lbs. 4 FC00H110.00" 5.00" 1:1 43 lbs. 5 FC00H15.00" 4.00" 1.07:1 44 lbs. 1 FC10H19.30" 7.08" 7.28" 2.24" 3.50" 1.99" 2.50" 5.00" 4.00" 1.05:1 44 lbs. 2 FC10H18.50" − 7.29" 2.30" 3.50" 1.99" − 8.00" 5.00" 0.88:11:16.25" 9.50" 7.28"8.51"2.31" 3.50" 1.99" 1.00"1.25"2.50"44 lbs. 8 FC10H110.00" 5.00" 1.2:1 55 lbs. 7 FC10H17.50" 9.50" 7.28" 2.31" 3.50" 1.99" 2.50" 10.00" 5.00" 1:1 50 lbs. 7 FC10H16.25" 9.50" 7.28" 2.31" 6.00" 5.00" 5/16−18TAP7.00" − 7.29" 2.30" 3.50" 1.99"2.00"9.30" 7.08" 7.30" 2.31"2.32"3.50" 1.99"2.00"10.00" 5.00" − 50 lbs. 7 FC10H11.50" 7.00" 5.00" − 51 lbs. 8 FC10H12.50" 10.00" 5.00" 1.13:1 50 lbs. 6 FC10H17.00" − 7.29" 2.30" 3.50" 1.99" − 8.00" 5.00" 1.2:1 55 lbs. 8 FC10H17.50" − 7.28" 2.31" 3.50" 1.99" 1.50"2.50"10.00" 5.00" 1.13:1 55 lbs. 3 FC10H112 − 19

12−FAN CLUTCHESHorton® Fan ClutchesCaterpillar 3406 (Model S & HT/S AdvantageВ)6, 8, 10K Multi−GrooveSKU#RF791038XRF791069XRF791076XProductDescription10K, 6KMulti−GrooveReman.Caterpillar 3406AdvantageSeries (ModelHT/S)8K, 6KMulti−GrooveReman.Caterpillar 3406AdvantageSeries (ModelHT/S)10K, 6KMulti−GrooveReman.Caterpillar 3406AdvantageSeries (ModelHT/S)A A1 B C D E F G H DriveRatio7.70" 6.77" 8.00" 1.93" 6.00" 4.99" 5/16"−18TAPApprox.WeightPic.#CoreGroup2.69" 5.00" 1.2:1 44 lbs. 3 FC10H17.50" 9.00" 7.28" 1.94" 3.50" 1.99" − 4.18" 5.00" − 49 lbs. 1 FC10H17.70" 6.77" 8.00" 1.93" 6.00" 4.99" − 4.22" 5.00" − 62 lbs. 2 FC10H112 − 20

Horton® Fan Clutches12−FAN CLUTCHESCaterpillar 3406, 3406B (Direct Drive)SKU# Product Description A A1 B C D E F G H DriveRatioRF991918New 4 Groove CAT 3406, 3406B(Direct Drive)7.50" − 6.25" 2.32" 3.50" 1.99" − 10.00" 5.00" 1.13:112 − 21

12−FAN CLUTCHESHorton® Fan ClutchesCaterpillar 3406, 3406E, C11, C13, C15 & C16 (DriveMaster®)SKU#ProductDescriptionRF799103X Reman. 4Groove CAT3406, 3406E,C15 & C16(DriveMaster)RF799334XRF799339XRF799437XRF799809XRF999809Reman. 8K, 6KMulti−GrooveCAT C15 & C16ACERT(DriveMaster)Reman. 8PKMulti−GrooveCAT C11 & C13(DriveMaster)Reman. 8PK,6PKMulti−GrooveCAT C15 & C16(DriveMaster)Reman. 12K, 6KMulti−GrooveCAT C15(DriveMaster)New 12K, 6KMulti−GrooveCAT C15(DriveMasterPolarExtreme®)A A1 B C D E F G H DriveRatio7.50" − 7.28" 2.31" 3.50" 2.56" 1.07" 10.00" 5.00" 1.2:1 49lbs.7.54" 9.04" 7.09" 1.94" 3.50" 2.56" 1.07" 4.00" 5.00" 1.2:1 53lbs.Wt.Pic.#CoreGroup1 FC99H12 FC99H18.25" − 5.59" 1.38" 3.50" 2.56" 1.07" 2.00" 2.36" − − 5 FC99H17.24" 8.68" 7.28" 1.94" 3.50" 2.56" 1.07" 3.96" 5.00" 1.25:1 51lbs.8.31" 8.31" 7.68" 1.94" 3.50" 2.56" 1.07" 4.19" 5.00" 1.3:1 53lbs.8.31" 8.31" 7.68" 1.94" 3.50" 2.56" 1.07" 4.19" 5.00" 1.3:1 53lbs.4 FC99H13 FC99H13 −12 − 22

Horton® Fan Clutches12−FAN CLUTCHESCummins (EC450®)SKU#RF996019RF996048ProductDescriptionNew 12 VoltsCummins "B" &"C" Series, ISB,ISC (EC450®)FreightlinerNew 12 VoltsCummins "C"Series (EC450®)FordA B C D # ofBoltsE F # ofSlots/HolesH J K L1.00" 0.74" 5.00" 6.00" 6 2.36" 0.43" 4 3.20" 0.25" 2.60" 3.41"− 0.37" 5.00" − 6 3.20" 0.44" 4 − 0.25" 1.32" 3.41"12 − 23

12−FAN CLUTCHESHorton® Fan ClutchesCummins "C" Series (Model S)SKU#RF790012XRF790013XProductDescription8K POLY VReman.Cummins "C"AdvantageSeries (ModelS)8K POLY V, 1VBelt GrooveReman.Cummins "C"AdvantageSeries (ModelS)A A1 B C D E F G H DriveRatioApprox.WeightPic.#CoreGroup6.22" − 6.08" 2.25" 3.50" 1.99" 1.00" 4.01" 4.41" − 40 lbs. 2 FC00H16.22" 7.07" 6.38" 2.25" 6.00" 4.99" 5/16−18TAP2.01" 4.41" 1.1:1 50 lbs. 1 FC00H112 − 24

Horton® Fan Clutches12−FAN CLUTCHESCummins ISB (DriveMaster®)Notes:1) Dimension B = 6.77" without 2.88" fan spacer (included)SKU# Product Description A A1 B C D E F G H DriveRatioRF999110New 8K, 1VMulti−Groove CumminsISB (DriveMaster®)Approx.Weight6.21" 6.88" 9.64" 2.04" 3.50" 2.56" 3.57" 2.40" 2.36" 1.2:1 −12 − 25

12−FAN CLUTCHESHorton® Fan ClutchesCummins ISL (DriveMaster®)SKU# Product Description A A1 B C D E F G H DriveRatioRF999416New 8K, 1VMulti−Groove CumminsISL (DriveMaster®)Approx.Weight6.29" 7.75" 6.54" 1.08" 3.50" 2.56" 2.57" 2.00" 2.32" 1.25:1 −12 − 26

Horton® Fan Clutches12−FAN CLUTCHESCummins ISM (DriveMaster®)SKU#RF799011XProductDescription8K Multi−GrooveReman. CumminsISM (DriveMaster)A B C D E F G H DriveRatioApprox.WeightCoreGroup7.50" 10.12" 5.55" 3.50" 2.56" 1.00" 2.76" 3.58" 1.2:1 − FC99H112 − 27

12−FAN CLUTCHESHorton® Fan ClutchesCummins ISX (DriveMaster®)SKU#RF799168XRF999801ProductDescription10K Multi−GrooveReman. Cummins ISX(DriveMaster)New 12KMulti−GrooveCummins ISX(DriveMasterPolarExtreme®)A B C D E F G H DriveRatioApprox.WeightCoreGroup6.82" 11.89" 6.65" 3.50" 2.56" 1.07" 2.02" 6.36" 1.2:1 50 lbs. FC99H17.35" 11.57" 6.66" 3.50" 2.56" 1.07" 2.02" 6.36" 1.3:1 50 lbs. −12 − 28

Horton® Fan Clutches12−FAN CLUTCHESCummins ISX (HT/S AdvantageВ)SKU#RF791093XProductDescription10K Multi−GrooveReman. CumminsISX (Model HT/S)A B C D E F G H DriveRatioApprox.WeightCoreGroup6.77" 11.22" 6.65" 3.50" 2.56" 1.00" 5.53" 6.36" − 52 lbs. FC10H112 − 29

12−FAN CLUTCHESHorton® Fan ClutchesCummins ISX & N14 (HT/S AdvantageВ)SKU#RF791073XProductDescription10K Multi−GrooveReman. Cummins ISX& N14 (Model HT/S)A B C D E F G H DriveRatioApprox.WeightCoreGroup6.77" 6.09" 1.40" 3.50" 2.56" 1.00" 3.27" 3.63" − 37.5 lbs. FC10H112 − 30

Horton® Fan Clutches12−FAN CLUTCHESCummins L10 Series (Direct Drive)SKU# Product Description A B C D E F G Drive RatioRF991900New 8K Multi−Groove Cummins L10 Series(Direct Drive)5.98" 3.18" 1.25" 3.50" 1.99" − 4.49" 1:112 − 31

12−FAN CLUTCHESHorton® Fan ClutchesCummins L10 Series (Model S & HT/S AdvantageВ)12 − 32

Horton® Fan Clutches12−FAN CLUTCHESSKU#ProductDescriptionA B C D E F G H DriveRatioWt.Pic.#CoreGroupRF790010X8K POLY VReman. CUM L10Advantage Ser.(Model S)5.98" 6.04" 1.25" 3.50" 1.99" 1.00"2.50"4.49" − 1:1 40lbs.1 FC00H1RF790016X8K POLY VReman. CUM L10Advantage Ser.(Model S)4.98" 5.43" 1.25" 6.00" 4.99" 5/16−18TAP4.49" − 1.2:1 40lbs.2 FC00H1RF790017X8K POLY VReman. CUM L10Advantage Ser.(Model S)4.98" 6.04" 1.25" 3.50" 1.99" 0.75"1.50"4.49" − 1.2:1 40lbs.1 FC00H1RF790023X8K POLY VReman. CUM L10Advantage Ser.(Model S)6.59" 6.04" 1.25" 3.50" 1.99" 1.25"1.50"4.49" − 0.91:10.92:140lbs.1 FC00H1RF791001X8K POLY VReman. CUM L10Advantage Ser.(Model HT/S)6.51" 6.04"6.42"1.25" 3.50" 1.99" 1.00"1.50"4.49" − 1.15:11.35:144lbs.1 FC10H1RF791018X8K POLY VReman. CUM L10Advantage Ser.(Model HT/S)6.22" 5.42" 1.25" 6.00" 4.99" 5/16−18TAP4.49" − 1.2:1 43lbs.1 FC10H1RF791021X8K POLY VReman. CUM L10Advantage Ser.(Model HT/S)5.98" 5.42"5.68"1.25" 6.00" 4.99" 5/16−18TAP4.49" − 1:11.12:144lbs.2 FC10H1RF791022X8K POLY VReman. CUM L10Advantage Ser.(Model HT/S)4.98" 5.42"5.68"1.25" 6.00" 4.99" 5/16−18TAP4.49" − 1:11.2:144lbs.2 FC10H1RF791029X8K POLY VReman. CUM L10Advantage Ser.(Model HT/S)6.22" 9.73" 5.55" 6.00" 4.99" 5/16−18TAP2.76" 3.58" − 44lbs.5 FC10H1RF791030X8K POLY VReman. CUM L10Advantage Ser.(Model HT/S)6.22" 9.73" 5.55" 6.00" 4.99" 5/16−18TAP2.76" 3.58" 1.2:1 54lbs.6 FC10H1RF791032X8K POLY VReman. CUM L10Advantage Ser.(Model HT/S)6.22" 10.40" 5.55" 6.00" 4.99" 5/16−18TAP2.76" 3.58" 1.2:1 44lbs.7 FC10H1RF791034X8K POLY VReman. CUM L10Advantage Ser.(Model HT/S)6.22" 9.73" 5.55" 6.00" 4.99" 5/16−18TAP2.76" 3.58" 1.2:1 44lbs.4 FC10H1RF791036X8K POLY VReman. CUM L10Advantage Ser.(Model HT/S)4.98" 6.04" 1.25" 3.50" 1.99" 1.50"2.00"4.49" − 1.2:1 44lbs.3 FC10H112 − 33

12−FAN CLUTCHESHorton® Fan ClutchesCummins L10 & N14 (Model S)SKU# Product Description A B C D E F G DriveRatioRF790021X8K Multi−Groove Reman.Cummins L10 & N14 (ModelS)Approx.WeightCoreGroup4.98" 5.43" 1.25" 6.00" 4.99" − 4.49" − 33.5 lbs. FC00H112 − 34

Horton® Fan Clutches12−FAN CLUTCHESCummins Ford NTC Series (Model S)SKU#RF790008XProductDescriptionReman. CumminsFord NTCAdvantage Series(Model S)A B C D E F G BeltGrooveDriveRatioApprox.WeightCoreGroup7.00" 8.74" 3.66" 3.50" 1.99" 1.50" 6.10" 2 1:1 40 lbs. FC00H112 − 35

12−FAN CLUTCHESHorton® Fan ClutchesCummins NT, NTC (Direct Drive)SKU# Product Description A B C D E F G H DriveRatioRF991902RF991903RF991933New 2 Groove Cummins NT,NTC (Direct Drive)New 2 Groove Cummins NT,NTC Big Cam IV (Direct Drive)New 2 Groove Cummins NTC(Direct Drive)PictureNumber7.03" 6.63" 3.00" 3.50" 1.99" − 3.44" 3.44" 1.1:1 17.03" 6.38" 3.00" 3.50" 2.56" − 3.44" 3.44" 1:1 17.03" 6.05" 3.35" 3.50" 1.99" − 5.25" − − 212 − 36

Horton® Fan Clutches12−FAN CLUTCHESCummins NTC, NT88, 444 Series (Model S & HT/S AdvantageВ)SKU#RF790000XRF790002XRF791000XRF791016XProductDescriptionReman.Cummins NTC,NT88, 444AdvantageSeries (ModelS)Reman.Cummins NTC,NT88, 444AdvantageSeries (ModelS)Reman.Cummins NTC,NT88, 444AdvantageSeries (ModelHT/S)Reman.Cummins NTC,NT88, 444AdvantageSeries (ModelHT/S)A B C D E F G H BeltGroove7.03" 7.19" 3.03" 3.50" 1.99" 1.50"2.50"2.75"3.25"8.19" 7.19" 3.03" 3.50" 1.99"2.00"1.50"2.50"7.03" 7.19" 3.03" 3.50" 1.99" 1.50"2.75"5.75" 8.38"9.00"DriveRatioApprox.WeightPic.#CoreGroup3.44" 3.44" 2 1:1 35 lbs. 3 FC00H13.44" 3.44" 2 0.86:1 40 lbs. 3 FC00H13.44" 3.44" 2 1:11.25:142 lbs. 1 FC10H13.06" 3.50" 1.99" 1.50" 3.44" 3.44" 2 1.2:1 44 lbs. 2 FC10H112 − 37

12−FAN CLUTCHESHorton® Fan ClutchesCummins N14 Series (Model S & HT/S AdvantageВ)SKU#RF790001XRF791004XRF791006XRF791009XRF791010XRF791019XRF791026XProductDescription2 Belt GrooveReman. CumminsN14 AdvantageSeries (Model S)2 Groove Reman.Cummins N14Advantage Series(Model HT/S)2 Groove Reman.Cummins N14Advantage Series(Model HT/S)2 Groove Reman.Cummins N14Advantage Series(Model HT/S)2 Groove Reman.Cummins N14Advantage Series(Model HT/S)2 Groove Reman.Cummins N14Advantage Series(Model HT/S)2 Belt GrooveReman. CumminsN14 AdvantageSeries (ModelHT/S)A B C D E F G DriveRatio7.04" 8.25" 3.31" 3.50" 1.99" 2.00"2.50"6.38" 7.90" 3.36" 3.50" 1.99" 1.00"1.50"Approx.WeightPic.#CoreGroup5.25" 1:1 40 lbs. 2 FC00H111.05" 1.1:1 44 lbs. 3 FC10H17.03" 7.90" 3.36" 3.50" 1.99" 1.00" 11.05" 1:1 52 lbs. 4 FC10H15.88" 8.00" 3.36" 3.50" 1.99" 1.00"1.50"7.03" 6.86" 3.35" 6.00" 4.99" 5/16"−18TAP7.03" 7.27" 3.36" 6.00" 4.99" 5/16"−18TAP6.50" − 44 lbs. 1 FC10H15.25" 1:1 45 lbs. 1 FC10H17.72" 1.2:1 47 lbs. 1 FC10H17.03" 7.89" 3.35" 3.50" 1.99" 1.25" 5.25" − 47 lbs. 1 FC10H112 − 38

Horton® Fan Clutches12−FAN CLUTCHESDetroit 6V92, 8V92, 8V71, 6V71 & 12V71 Series (Model S)SKU#RF790003XRF790004XProductDescriptionReman. Detroit6V92, 8V92,8V71, 6V71,12V71AdvantageSeries (ModelS)Reman. Detroit6V92, 8V92,8V71, 6V71,12V71AdvantageSeries (ModelS)A B C D E F G H BeltGroove7.25" 6.39" 1.89" 3.50"3.88"9.12" 6.39"7.50"1.89" 3.50"3.88"4.50"1.99"2.05"1.99"2.05"2.49"0.75"1.00"1.25"1.50"2.75"1.001.50"DriveRatioApprox.WeightPic.#CoreGroup3.47" 3.75" 3 1:1 40 lbs. 1 FC00H13.47" 3.75" 3 0.8:11:140 lbs. 2 FC00H112 − 39

12−FAN CLUTCHESHorton® Fan ClutchesDetroit 60 Series (Direct Drive)SKU# Product Description A B C D E G HRF992013 New 10K Multi−Groove Detroit 60 Series (Direct Drive) 7.50" 3.83" 0.97" 3.50" 2.00" 3.17" 3.17"12 − 40

Horton® Fan Clutches12−FAN CLUTCHESDetroit 60 Series (DriveMaster®)SKU#RF799065XRF799067XRF799223XRF999285ProductDescription3 Groove Reman.Detroit 60 Series(DriveMaster®)3 Groove Reman.Detroit 60 Series(DriveMaster®)10KMulti−GrooveReman. Detroit60 Series(DriveMaster®)New 3 GrooveDetroit 60 Series(DriveMaster®)A B C D E F G H DriveRatioApprox.WeightPic.#CoreGroup6.20" 7.93" 2.37" 3.50" 2.56" 0.81" 8.00" 5.32" 1.2:1 39.5 lbs. 2 FC99H16.20" 8.93" 2.37" 3.50" 2.56" 0.81" 8.00" 5.32" − 41.7 lbs. 3 FC99H17.54" 10.55" 4.17" 3.50" 2.56" 0.81" 2.56" 9.53" 1.2:1 53.7 lbs. 1 FC99H18.00" 6.24" 1.55" 3.50" 2.56" 0.81" 3.17" 3.17" 1.08:1 − 4 −12 − 41

12−FAN CLUTCHESHorton® Fan ClutchesDetroit 60 Series (Model S & HT/S AdvantageВ)3 & 4 Belt GrooveSKU#RF790009XRF790011XRF790018XRF791011XRF791024XRF791037XProductDescription4 GrooveReman. Detroit60 AdvantageSeries (ModelS)4 GrooveReman. Detroit60 AdvantageSeries (ModelS)3 GrooveReman. Detroit60 AdvantageSeries (ModelS)4 GrooveReman. Detroit60 AdvantageSeries (ModelHT/S)3 GrooveReman. Detroit60 AdvantageSeries (ModelHT/S)4 GrooveReman. Detroit60 AdvantageSeries (ModelHT/S)A A1 B C D E F G H DriveRatio9.06" 7.25" 6.51" 1.61" 3.50" 1.99" 1.25"2.00"8.58" 5.32" 1.01:11.02:11.06:1Approx.WeightPic.#CoreGroup46 lbs. 3 FC00H110.00" 8.00" 6.51" 1.61" 3.50" 1.99" 1.25" 8.58" 5.32" − 40 lbs. 3 FC00H17.25" − 6.51" 2.37" 3.50" 1.99" 0.75"1.25"1.50"8.58" 5.32" 1:1 40 lbs. 2 FC00H19.06" 6.20" 6.68" 1.61" 3.50" 1.99" 2.00" 8.58" 5.32" 1.19:1 44 lbs. 3 FC10H16.20" − 6.68" 2.37" 3.50" 1.99" 2.00" 8.58" 5.32" 1.2:1 43 lbs. 1 FC10H19.06" 7.25" 6.68" 1.61" 3.50" 1.99" 2.00 8.58" 5.32" 1:1 54 lbs. 3 FC10H112 − 42

Horton® Fan Clutches12−FAN CLUTCHESDetroit 60 Series (Model S & HT/S AdvantageВ)6, 10, 14K Multi−GrooveSKU#RF791023XRF791031XProductDescription6K & 10KPOLY VReman. Detroit60 AdvantageSeries (ModelHT/S)6K & 10KPOLY VReman. Detroit60 AdvantageSeries −International(Model HT/S)RF791033X 14K POLY V,1V Reman.Detroit 60AdvantageSeries − Ford(Model HT/S)A A1 B C D E F G H DriveRatio6.81" 6.18" 6.60" 1.96" 6.00" 4.99" 5/16"−18TAP6.81" 6.18" 6.60" 1.96" 6.00" 4.99" 5/16"−18TAP6.36" 5.44" 6.95" 1.88" 3.50" 2.56" 3/8"−16TAPApprox.WeightPic.#CoreGroup5.32" 5.32" 12:1 44 lbs. 3 FC10H15.32" 5.32" 1.2:1 44 lbs. 1 FC10H18.86" 5.32" − 44 lbs. 2 FC10H112 − 43

12−FAN CLUTCHESHorton® Fan ClutchesMack ASET AI (DriveMaster® Two−Speed)SKU# Product Description A A1 B C D E F G H DriveRatioRF999947New 6PK, 10PK, 1V Multi−GrooveMack ASET AI (DriveMasterTwo−Speed)5.00" 5.19" 9.43" 2.00" 6.00" 5.00" 1.05" 2.69" 5.39" 1.77:112 − 44

Horton® Fan Clutches12−FAN CLUTCHESVolvo VE D12 (DriveMaster PolarExtreme®)SKU# Product Description A B C D E F G H DriveRatioRF999820New 12PK Multi−Groove Volvo VE D12(DriveMaster PolarExtreme®)6.99" 6.61" 1.47" 3.50" 2.56" 0.81" 3.27" 3.63" 1.41:112 − 45

12−FAN CLUTCHESKysorВ/Borg Warner Style Fan ClutchesKysorВ/Borg Warner Style Fan ClutchesSpecifications:SKU# Product Description Model/Type OEM Number Approx. Weight Core GroupRF80001X Reman. Fan Clutch K−22 Front Air 1090−08000−01 14 lbs. FC101KFRF80005X Reman. Fan Clutch for Mack Application K−22 Front Air 1090−08000−05 14 lbs. FC101KFRF85001XReman. Fan Clutch (Most PopularApplication)K−22 Rear Air 1090−08500−01 14 lbs. FC101KRRF85002X Reman. Fan Clutch for Ford Application K−22 Rear Air 1090−08500−02 14 lbs. FC101KRRF85003X Reman. Fan Clutch for Ford Application K−22 Rear Air 1090−08500−03 14 lbs. FC101KRRF88001X Reman. Fan Clutch K−26 Rear Air 1090−09500−01 14 lbs. FC102KRRF88003X Reman. Fan Clutch K−26 Rear Air 1090−09500−03 14 lbs. FC102KR12 − 46

Gold Top® Kits12−FAN CLUTCHESGold Top® KitsSKU# Product Description Pilot/Nose Cone Pulley BearingRF14200K Gold Top® Kit for Horton−Style Post 2000 Kits 2" 2RF142561K Gold Top® Kit for Horton−Style Post 2000 Kits 2.56" 1RF14256K Gold Top® Kit for Horton−Style Post 2000 Kits 2.56" 2RF142SK Gold Top® 2 Speed Kit for Horton−Style Post 2000 Kits − −RF145K Gold Top® 2 Speed Adapter Plate Kit for Horton−Style Post 2000 Kits 5" −RF14LK Gold Top® Lining Kit for Horton−Style Post 2000 Kits − −RF14SBLK Gold Top® Seal, Bearing & Lining Kit for Horton−Style Post 2000 Kits − −RF14SK Gold Top® Seal Kit for Horton−Style Post 2000 Kits − −12 − 47

12−FAN CLUTCHES Horton® Fan Clutch Components/Repair KitsMajor Overhaul KitsSKU# Product Description Kit Contains Kit Contains ContinuedRF994314'S' Major Kit with StandardFriction Facing for Horton FanClutch(1pr.) Sheave Bearing, (1) Friction Facing,(6) S Cap Screws, (1) Large O−Ring Seal,(1) Locknut, (1) Cartridge Assembly,(1) Face Seal Assembly, (1) Small O−RingSeal, (8) Cap Screws, (1) O−Ring Lube, (1)System SentryВ and (1)Umbrella CheckValve.RF994315'HT/S' Major Kit with StandardFriction Facing for Horton FanClutch(1pr.) Sheave Bearing, (1) Friction Facing,(8) HT/S Cap Screw, (1) Large O−RingSeal, (1) Locknut, (1) Cartridge Assembly,(1)Face Seal Assembly, (1) Small O−Ring Seal,(8) Cap Screws, (1) O−Ring Lube, (1) SystemSentryВ and (1) Umbrella Check Valve.12 − 48

Horton® Fan Clutch Components/Repair Kits12−FAN CLUTCHESSuper KitsSKU# Product Description Kit Contains Kit Contains ContinuedRF994305'HT/S' Advantage Super Kitwith Standard FrictionFacing for Horton FanClutch(1pr.) Sheave Bearing, (1) FrictionFacing, (8) Socket Head Cap Screws −friction facing, (1) Piston Assembly, (1)Large O−Ring, (1) Locknut,(1) Cartridge Assembly, (1) Face Seal Assembly, (1)Small O−Ring, (8) Socket Head Screws − airchamber, (1) O−Ring Lube, (1) Spline Lube, (1)Spline Lube Brush (1) System SentryВ and (1)Umbrella Check Valve.RF994307'S' Advantage Super Kitwith Standard FrictionFacing for Horton FanClutch(1pr.) Sheave Bearing, (1) FrictionFacing, (6) S Cap Screws, (1) S PistonAssembly, (1) Large O−Ring, (1)Locknut,(1) Cartridge Assembly, (1) Face Seal Assembly, (1)Small O−Ring, (8) Cap Screws, (1) O−Ring Lube, (1)System SentryВ and (1) Umbrella Check Valve.RF994322HT/S Advantage Super Kitwith Sintered Friction Linerfor Horton Fan Clutch(1) O−Ring Lube, (1) Spline Lube, (1)Spline Lube Brush, (1 pr.) SheaveBearings, (1) Friction Facing, (8) SocketHead Cap Screw − friction facing, (1)Piston Assembly,(1) Large O−Ring, (1) Lock Nut, (1) CartridgeAssembly, (1) Face Seal Assembly, (1) SmallO−Ring, (8) Socket Head Screws − air chamber, (1)Umbrella Check ValveRF994343'HT/S' Advantage Super Kitwith Sintered FrictionFacing for Horton FanClutch(1pr.) Sheave Bearing, (1) FrictionFacing, (8) S Cap Screws, (1) HT/SPiston Assembly, (1) Large O−RingSeal, (1) Locknut,(1) Cartridge Assembly, (1) Face Seal Assembly, (1)Small O−Ring Seal, (8) Cap Screws, (1) O−RingLube, (1) System SentryВ and (1) Umbrella CheckValve.RF994900Drivemaster PolarextremeSuper Kit for Horton FanClutch(1) T55 Torx Plus Driver, (1) O−RingLubricant, (1 pr.) Sheave Bearings, (1)Bearing Nut, (1) O−Ring Seal, (1) FanMounted Disc/Studs, (8) Button HeadScrews,(1) Air Chamber Seal, (1) Face Seal, (2) RetainingRings, (1) Air Cartridge Assembly, (1) Friction Liner,(1) Spring Housing/Piston, (1) Cage Nut − used forrepairs only.RF994985Drivemaster Super Kit forHorton Fan Clutch(1) T55 Torx Plus Driver, (1) O−RingLubricant, (1 pr.) Sheave Bearings, (1)Bearing Nut, (1) O−Ring Seal, (1) FanMounted Disc/Studs, (8) Button HeadScrews,(1) Air Chamber Seal, (1) Face Seal, (2) RetainingRings, (1) Air Cartridge Assembly, (1) Friction Liner,(1) Spring Housing/Piston, (1) Cage Nut − used forrepairs only.12 − 49

12−FAN CLUTCHES Horton® Fan Clutch Components/Repair KitsSeal KitSKU# Product Description Kit Contains Kit Contains ContinuedRF994205'S' and 'HT/S' Seal Kit forHorton Fan Clutch(1) Large O−Ring Seal, (1) CartridgeAssembly, (1) Face Seal Assembly, (1) SmallO−Ring Seal, (8) Cap Screws,(1) O−Ring Lube, (1) Spline Lube, (1) Spline LubeBrush, (1) System SentryВ, (1) Umbrella CheckValve and (1) Wrench.RF994346Drivemaster Seal Kit forHorton Fan Clutch(1) T55 Torx Plus Driver, (1) O−RingLubricant, (1) O−Ring Seal, (8) Button HeadScrews, (1) Air Chamber Seal,(1) Face Seal, (1) Retaining Ring, (1) AirCartridge Assembly, (1) Retaining Ring and (1)Cage Nut − used for repairs only.12 − 50

Horton® Fan Clutch Components/Repair Kits12−FAN CLUTCHESFacing/Liner KitRF994349 ShownSKU# Product Description Kit ContainsRF994319RF994349'HT/S' Advantage Facing Kit for Horton FanClutchDrivemaster Friction Liner Kit for Horton FanClutch'HT/S' Sintered Friction Facing(1) T55 Torx Plus Driver, (8) Button Head Screws, (1) Friction Liner and(1) Cage Nut − used for repairs only.12 − 51

12−FAN CLUTCHES Horton® Fan Clutch Components/Repair KitsSpacers & AdaptersSKU#RF994039RF994040RF994052RF994053RF994072RF994073RF994074ProductDescriptionSpacer for HortonFan ClutchSpacer for HortonFan ClutchSpacer for HortonFan ClutchSpacer for HortonFan ClutchSpacer for HortonFan ClutchSpacer for HortonFan ClutchSpacer for HortonFan ClutchFemalePilot Dia.(A)MalePilotDia. (C)FemalePilotDepth (D)BoltCircle(E)Thickness(F)2.06" 2.00" .62" 3.5"−4.0" 1.00" For DDADrivesComments OEM # FIG.#984081 12.00" 2.00" .62" 3.50" 1.00" − 984080 22.00" 2.00" .75" 3.50" 1.23" − 984086 22.00" 2.56" 0.75" 3.50" .62" − 984087 42.00" 2.00" .75" 3.50" 2.25" − 984089 22.00" 2.00" .26" 3.50" .62" − 984090 22.00" − Thru Hole 3.50" .25" Flat SpacerThru Holes984091 312 − 52

Horton® Fan Clutch Components/Repair Kits12−FAN CLUTCHESThermal SwitchesFeatures:• The thermal switch is an integrated temperature control and/oroverheat protective device.• The switching circuit features mechanical load switching,designed for frequent or high current switching.• Controls include the fan clutch, radiator shutters and engineshutdown (overtemp).SKU# Product Description Circuit Type Temperature Pipe Thread SizeRF993603 Thermal Switch for Horton Fan Clutch Normally Closed 190° F .500"RF993605 Thermal Switch for Horton Fan Clutch Normally Closed 195° F .500"RF993606 Thermal Switch for Horton Fan Clutch Normally Closed 200° F .500"RF993607 Thermal Switch for Horton Fan Clutch Normally Closed 205° F .500"RF993610 Thermal Switch for Horton Fan Clutch Normally Open 195° F .375"RF993615 Thermal Switch for Horton Fan Clutch Normally Open 180° F .500"RF993616 Thermal Switch for Horton Fan Clutch Normally Open 185° F .500"RF993617 Thermal Switch for Horton Fan Clutch Normally Open 190° F .500"RF993619 Thermal Switch for Horton Fan Clutch Normally Closed 185° F .500"RF993625 Thermal Switch for Horton Fan Clutch Normally Open 215° F .500"RF993626 Thermal Switch for Horton Fan Clutch Normally Open 220° F .500"RF993630 Thermal Switch for Horton Fan Clutch Normally ClosedDual Function185° /195° F .500"RF993653 Thermal Switch for Horton Fan Clutch Normally Open 195° F .500"RF993654 Thermal Switch for Horton Fan Clutch Normally Open 200° F .500"RF993655 Thermal Switch for Horton Fan Clutch Normally Open 205° F .500"RF993658 Thermal Switch for Horton Fan Clutch Normally Closed 150° F .500"RF993665 Thermal Switch for Horton Fan Clutch Normally Closed 215° F .500"12 − 53

12−FAN CLUTCHES Horton® Fan Clutch Components/Repair KitsSolenoid Valve & FilterSKU#ProductDescriptionApplications Volts Circuit Type Diode Notes OEMNumberRF993249 Solenoid Valve International 12 Normally Open /Normally ClosedRF993272 Solenoid Valve All / Freightliner 12 Normally Open /Normally ClosedRF993273 Solenoid Valve All 24 Normally Open /Normally ClosedRF993280 Solenoid Valve Dina 12 Normally Open /Normally ClosedRF993282 Solenoid Valve All 12 Normally Open /Normally ClosedRF993284 Solenoid Valve Kenworth /NavistarYes − −YesYesSingle−HoleMounting BracketSingle−HoleMounting BracketNo − −YesTwo−Hole MountingBracket12 Normally Closed Yes − 983236RF993286 Solenoid Valve Peterbilt 12 Normally Closed Yes − 983238RF993287 Solenoid Valve Unspecified 12 Normally Open Yes − 983239RF993293 Solenoid Valve All / Freightliner 12 Normally Closed /Normally OpenRF993294 Solenoid Valve All 24 Normally Open /Normally ClosedYes With Filter 983246 (NC)983246 (NO)Yes With Filter 983247 (NO)993248 (NC)RF993295 Solenoid Valve Ford 12 Normally Open Yes − 983249RF993296 Solenoid Valve Freightliner 12 Normally Open Yes − 983250RF993343 Solenoid Valve All − Normally Open Yes Volvo Universal Kit −RF993412 Solenoid Valve International 12 Normally Closed Yes − 983410RF993427 Solenoid Valve Ford 12 Normally Open Yes With Filter 983424RF993428 Solenoid Valve Freightliner 12 Normally Closed Yes With Filter 983425RF994002Solenoid Valve FilterAssembly− − − − − −−−−12 − 54

Horton® Fan Clutch Components/Repair Kits12−FAN CLUTCHESFan BladesClockwise RotationSKU#RF991762202RF991762502RF991813253RF994105RF994116RF994117RF994155RF994156ProductDescription9 Blade for HortonFan Clutch9 Blade for HortonFan Clutch9 Blade for HortonFan Clutch8 Blade for HortonFan Clutch8 Blade for HortonFan Clutch8 Blade for HortonFan Clutch8 Blade for HortonFan Clutch8 Blade for HortonFan ClutchBladeDia.PilotDia.BoltCirclePitchWidthFront Tip ofBlade to Backof MountingDiscBack ofMounting Discto Back Tip ofBladeApprox.Weight30.0 2.00 3.50 3.50 1.29 2.21 12.1 lbs.30.0 5.00 6.00 3.50 1.29 2.21 11.6 lbs.32.0 2.56 3.50 3.50 1.94 1.56 12.6 lbs.26.0 2.00 3.50 3.34 1.13 2.21 6.2 lbs.28.0 5.00 6.00 3.46 1.14 2.32 6.5 lbs.30.0 5.00 6.00 3.56 1.18 2.38 7.1 lbs.28.0 2.00 3.50 3.46 2.20 1.26 6.5 lbs.30.0 2.00 3.50 3.56 1.30 2.26 7.1 lbs.12 − 55

12−FAN CLUTCHESKysorВ/Borg Warner Style ComponentsKysorВ/Borg Warner Style Kits and ComponentsSKU# Product Description Model/Type OEM NumberRF8000KCK Combo Seal/Lining Kit K−22 Front Air 1033−05435−02RF8000KSK Seal Kit K−22 Front Air −RF8101K Pulley Bearing Kit − 1033−07781−01RF8201K Pulley Bearing Kit − 1033−07782−01RF8202K Pulley Bearing Kit − 1033−07782−02RF8203K Pulley Bearing Kit − 1033−07782−03RF8204K Pulley Bearing Kit − 1033−07782−04RF8500KCK Combo Seal/Lining Kit K−22 Rear Air 1033−05435−03RF8500KLK Lining Kit K−22 Front/Rear Air 1033−08250−01RF8500KSK Seal Kit K−22/K−26 Rear Air 1033−08233−01RF8800KCK Combo Seal/Lining Kit K−26 Rear Air 1033−09339−01RF8800KLK Lining Kit K−26 Rear Air 1033−09340−0112 − 56

KysorВ/Borg Warner Style Components12−FAN CLUTCHESTemperature Controls/ShutterstatsSKU# Product Description Circuit Type Temperature Port SizeRF35029 Temperature Control/Shutterstats for KysorВ Style Clutch Normally Closed 185° F 1/8−27 NPTFRF35030 Temperature Control/Shutterstats for KysorВ Style Clutch Normally Closed 190° F 1/8−27 NPTFRF35031 Temperature Control/Shutterstats for KysorВ Style Clutch Normally Closed 195° F 1/8−27 NPTFRF36029 Temperature Control/Shutterstats for KysorВ Style Clutch Normally Open 185° F 1/8−27 NPTFRF36030 Temperature Control/Shutterstats for KysorВ Style Clutch Normally Open 190° F 1/8−27 NPTFRF36031 Temperature Control/Shutterstats for KysorВ Style Clutch Normally Open 195° F 1/8−27 NPTF12 − 57

12−FAN CLUTCHESTroubleshootingCOOLING SYSTEM CONTROLS• A Normally Closed Electric Control System has a normally closed Thermal Switch and a normallyopen Solenoid Valve.• A Normally Open Electric Control System has a normally open Thermal Switch and a normally closedSolenoid Valve.NORMALLY CLOSEDNORMALLY OPEN12 − 58

Troubleshooting12−FAN CLUTCHESNormally Closed Fan ClutchesProblem Possible Cause SolutionFan won't engage whenmanual override is turned on.Fan won't cycle on when airconditioning test is performed.Overtemp warning activatesbefore fan engages.Engine appears to overheat.(Fan won't engage whenengine coolant temp gauge isabove 195−205°F orovertemp warning activatesbefore fan engages.)Manual override switch, air solenoid valve orrelated plumbing or wiring is faulty.Outside air temperature is too low, there is alow refrigerant charge or refrigerant pressureswitch is faulty.Defective overtemp warning switch.1. Air Solenoid valve may be plumbedincorrectly2. Overtemp warning switch faulty(warning light activates prematurely).3. Overtemp warning switch is too faraway from the fan temp switch.4. Temp gauge is faulty (reads high).5. Fan temp switch is faulty.Replace faulty component.1. Check air conditioning system.2. Replace pressure switch ifrequired.Replace overtemp warning switch.1. Check solenoid plumbing.Replumb solenoid valve.2. Replace overtemp warningswitch.3. Move overtemp warning switchas close to the fan temp switchas possible.4. Replace temp gauge.Fan engages at low enginetemperatures while vehicle ismoving.Fan won't run under anycondition.1. Normal condition in extremely hotweather or at slow vehicle speeds inwarm weather.2. Faulty temp gauge.3. A/C system overcharged or condensercovered with debris.4. Refrigerant pressure switch may befaulty.5. Fan temp switch is faulty, if fanengages at low engine temp and A/Cis OFF.1. Air line may be leaking (Horton/Evansair−on fan drives).2. Wiring may be shorted and/or fuses,circuit breakers blown.3. Air solenoid may be faulty. Test airsolenoid valve by shorting across theterminals of the temp switch toenergize the air solenoid valve and toactivate the fan drive.5. Replace fan temp switch.1. Normal condition in hotweather.2. Replace temp gauge orsender.3. Check A/C system.4. Replace pressure switch ifnecessary.5. Replace fan temp switch.1. Check air lines. Fix wherenecessary.2. Check wiring, fuses, and circuitbreakers.3. If solenoid does not activate,replace solenoid.12 − 59

12−FAN CLUTCHESTroubleshootingNormally Closed Fan ClutchesProblem Possible Cause SolutionFan runs all the time whenthe air conditioning is OFF.Fan runs all the time whenthe air conditioning is ON.Fan operation is erratic.Fan cycles frequently whenengine is hot.1. Manual override switch is ON.2. Air solenoid valve may be faulty orplumbed incorrectly.3. Air line to clutch may be leaking(Bendix/Kysor air−off fan drives).4. Fan temp switch may be stuck open;with engine temp below 180°F shortacross terminals, if fan turns off,switch is faulty.5. Pressure switch may be stuck open;turn off A/C system, if fan continues torun, short across pressure switch, iffan stops, pressure switch isdefective.1. This is a normal condition inextremely hot weather; spray wateron A/C condenser (fan shoulddisengage for a short period of timeand then re−engage after waterevaporates).2. Air conditioning system may beover−charged or condenser coveredwith debris. Turn OFF the A/Csystem; if the fan stops, therefrigerant pressure switch isfunctioning.3. Pressure switch may have drifted outof calibration; use pressure gauge tocompare actual fan−on and fan−offpressures vs. specified pressures.1. Loose electrical connection.2. Fan temp or pressure switch may befaulty.The fan should remain engaged long enoughto reduce temperature 7−10єF. The fan tempswitch is defective if the fan disengages afteronly a 3−4є reduction.1. Turn manual override off.2. Check air solenoid valveplumbing, replace valve iffaulty.3. Check air lines, fix wherenecessary.4. Replace fan temp switch.5. Replace pressure switch.1. Normal condition in hotweather.2. Service A/C system. CheckA/C pressure and condenser.3. If out of calibration, replacepressure switch.1. Check wiring; fix wherenecessary.2. If other system componentsand connections check outokay, (a) replace pressureswitch if erratic fan operationis associated with airconditioning at idle or (b)replace fan temp switch if theerratic operation occursprimarily when the engine ishot.Replace fan temp switch.12 − 60

Troubleshooting12−FAN CLUTCHESNormally Closed Fan ClutchesProblem Possible Cause SolutionFan cycles frequently whenvehicle is stationary with A/CON.Fan turns on wheneverignition is on (turns off whenengine gets hot).Control system fuses blown.Up to 4 cycles per minute is a normal conditionfor conventional control systems; turn off airconditioning system and cycling should stop.Air solenoid valve plumbed backwards.1. If fuse blows whenever the ignition isturned on, the problem is most likelyrelated to a fault in the wiring.2. If the fuses blow only when the fanengages, the fault is probablyassociated with the solenoid valve.To reduce cycling by up to 90%, installan Index K7 fan control system.Check solenoid installation instructions;plumb correctly.1. Check wiring, fix wherenecessary.2. Use an ohmmeter to check fora shorted solenoid coil (thecoil resistance should begreater than 14 ohms). Ifshorted, replace air solenoidvalve.12 − 61

12−FAN CLUTCHESTroubleshootingNormally Open Fan ClutchesProblem Possible Cause SolutionFan won't engage whenmanual override is turned on.Fan won't cycle on when airconditioning test is performed.Override warning activatesbefore fan engages.Engine appears to overheat.(Fan won't engage whenengine coolant temp gauge isabove 195−205°F orovertemp warning activatesbefore fan engages.)Manual override switch, air solenoid valve orrelated plumbing or wiring is faulty.Outside air temperature is too low, there is alow refrigerant charge or refrigerant pressureswitch is faulty.Defective overtemp warning switch.1. Air Solenoid valve may be plumbedincorrectly2. Overtemp warning switch faulty(warning light activates prematurely).3. Overtemp warning switch is too faraway from the fan temp switch.4. Temp gauge is faulty (reads high).5. Fan temp switch is faulty.Replace faulty component.1. Check air conditioning system.2. Replace pressure switch ifrequired.Replace overtemp warning switch.1. Check solenoid plumbing.Replumb solenoid valve.2. Replace overtemp warningswitch.3. Move overtemp warning switchas close to the fan temp switchas possible.4. Replace temp gauge.Fan engages at low enginetemperatures while vehicle ismoving, with air conditioningON.Fan won't run under anycondition.1. Normal condition in extremely hotweather or at slow vehicle speeds inwarm weather.2. Faulty temp gauge.3. A/C system overcharged or condensercovered with debris.4. Refrigerant pressure switch may befaulty.5. Fan temp switch is faulty if fanengages at low engine temp and A/Cis OFF.1. Air line may be leaking (Horton/Evansair−on fan drives).2. Wiring may be shorted and/or fuses,circuit breakers blown.3. Air solenoid may be faulty. Test airsolenoid valve by shorting across theterminals of the temp switch toenergize the air solenoid valve and toactivate the fan drive.5. Replace fan temp switch.1. Normal condition in hotweather.2. Replace temp gauge orsender.3. Check A/C system.4. Replace pressure switch ifnecessary.5. Replace fan temp switch.1. Check air lines. Fix wherenecessary.2. Check wiring, fuses, and circuitbreakers.3. If solenoid does not activate,replace solenoid.12 − 62

Troubleshooting12−FAN CLUTCHESNormally Open Fan ClutchesProblem Possible Cause SolutionFan runs all the time whenthe air conditioning is OFF.Fan runs all the time whenthe air conditioning is ON.Fan operation is erratic.Fan cycles frequently whenengine is hot.1. Manual override switch is ON.2. Air solenoid valve may be faulty orplumbed incorrectly.3. Air line to clutch may be leaking(Bendix/Kysor air−off fan drives).4. Fan temp switch may be stuck closed;with engine temp below 180°Fdisconnect wiring, if fan turns off,switch is faulty.5. Pressure switch may be stuck closed;turn off A/C system, if fan continues torun, disconnect wiring to pressureswitch, if fan stops, pressure switch isdefective.1. This is a normal condition inextremely hot weather; spray wateron A/C condenser (fan shoulddisengage for a short period of timeand then re−engage after waterevaporates).2. Air conditioning system may beover−charged or condenser coveredwith debris. Turn OFF the A/Csystem; if the fan stops, therefrigerant pressure switch isfunctioning.3. Pressure switch may have drifted outof calibration; use pressure gauge tocompare actual fan−on and fan−offpressures vs. specified pressures.1. Loose electrical connection.2. Fan temp or pressure switch may befaulty.The fan should remain engaged long enoughto reduce temperature 7−10єF. The fan tempswitch is defective if the fan disengages afteronly a 3−4єF reduction.1. Turn manual override off.2. Check air solenoid valveplumbing, replace valve iffaulty.3. Check air lines, fix wherenecessary.4. Replace fan temp switch.5. Replace pressure switch.1. Normal condition in hotweather.2. Service A/C system. CheckA/C pressure and condenser.3. If out of calibration, replacepressure switch.1. Check wiring; fix wherenecessary.2. If other system componentsand connections check outokay, (a) replace pressureswitch if erratic fan operationis associated with airconditioning at idle or (b)replace fan temp switch if theerratic operation occursprimarily when the engine ishot.Replace fan temp switch.12 − 63

12−FAN CLUTCHESTroubleshootingNormally Open Fan ClutchesProblem Possible Cause SolutionFan cycles frequently whenvehicle is stationary with A/CON.Fan turns on wheneverignition is on (turns off whenengine gets hot).Control system fuses blown.Up to 4 cycles per minute is a normal conditionfor conventional control systems; turn off airconditioning system and cycling should stop.Air solenoid valve plumbed backwards.1. If fuse blows whenever the ignition isturned on, the problem is most likelyrelated to a fault in the wiring.2. If the fuses blow only when the fanengages, the fault is probablyassociated with the solenoid valve.To reduce cycling by up to 90%, installan Index K7 fan control system.Check solenoid installation instructions;plumb correctly.1. Check wiring, fix wherenecessary.2. Use an ohmmeter to check fora shorted solenoid coil (thecoil resistance should begreater than 14 ohms). Ifshorted, replace air solenoidvalve.12 − 64

CARQUEST CorporationRaleigh, North Carolina 27604www.CARQUEST.comHKC2010