Peterbilt Parts

Parts for Peterbilt trucks, including the 379, 389, 386, 387, 567 and 579. Peterbilt and Kenworth are both PACCAR companies and share many components, so also see Kenworth parts.

Eaton Fuller transmissions for Peterbilt trucks

The Eaton Fuller manual is the classic Peterbilt transmission: the 10 speed in fleet trucks, the 13 speed in the 389 and 579, and the 18 speed in heavy haul and show trucks. Pick yours by speed: 9 speed, 10 speed, 13 speed, 15 speed and 18 speed, or see all Eaton Fuller transmissions. The model number is on the tag on the side of the transmission case; have it ready and we will match the exact unit.

Peterbilt shift knobs and shift patterns

Replace a worn shifter with an Eaton Fuller shift knob, and find the gear pattern for your 9, 10, 13, 15 or 18 speed in our Eaton Fuller shift pattern diagrams.

Drivetrain parts for Peterbilt trucks

The axles, clutch and driveline under a Peterbilt are built by the same component makers we stock every day. Browse differentials, differential parts, transmission parts, clutches, driveshafts and power take offs.

Peterbilt chassis, brake and cab parts

Replacement parts by system: cab and chassis parts, suspension and axle parts, brake parts, air system parts, electrical parts and heating and A/C parts.

Not sure what fits your truck? Call (877) 776-4600 with the part number off the old part, or the VIN and the tag off the unit, and our parts team will match it for you.