Peterbilt Model 320 Operator's Manual after 8-07 - Peterbilt Motors ...

Component Identification
Federal Safety Standard Certification Label
The NHTSA regulations require a label certifying compliance
with Federal Safety Standard, for United States and
U.S. Territories, be affixed to each motor vehicle and prescribe
where such label may be located. This certification
label, which indicates the date of manufacture and other
pertinent information, is located on the driver’s side door
frame.
Component Identification
Each of the major components on your vehicle has an identification
label or tag. For easy reference, record component
numbers such as, model, serial, and assembly number.
See the “Vehicle Component Register” (last page of
this manual).
Engine: For further information, please refer to the Engine
Operation and Maintenance Manual.
Clutch: Enclosed in clutch housing. Location depends on
manufacturer.
PART 9: VEHICLE IDENTIFICATION NUMBERS
Transmission: For both manual and automatic transmissions,
the identification number is stamped on a tag affixed
to the right rear side of the transmission case.
Steer Axle: The front axle serial number is stamped on a
plate located on the center of the axle beam.
Drive Axles: The drive axle numbering system includes
three labels or stamps:
1. Axle Specification Number, usually stamped on the
right rear side of the axle housing. This number identifies
the complete axle.
2. Axle Housing Number Tag, usually located on the left
forward side of the housing arm. This tag identifies the
axle housing.
3. Axle Differential Carrier Identification, usually located
on the top side of the differential carrier. The following
information is either stamped, or marked with a metal
tag: Model No., Production Assembly No., Serial No.,
Gear Ratio, and Part Number.
– 198 – Y53-6015 R(08/07)