2006 Kenworth C500, 2006 Kenworth T800, 2006 Kenworth W900 and 5 other models Recall: ON CERTAIN TRUCKS EQUIPPED WITH CHALMERS REAR SUSPENSIONS, THE ADJUSTABLE…
NHTSA campaign 06V391000 · Power Train · filed Oct 13, 2006 · verified Jul 30, 2026
The defect
ON CERTAIN TRUCKS EQUIPPED WITH CHALMERS REAR SUSPENSIONS, THE ADJUSTABLE TORQUE ROD END CASTINGS MAY BE BRITTLE. A BRITTLE ROD END CASTING MAY FRACTURE WITHOUT WARNING, CAUSING THE VEHICLES' REAR AXLES TO BECOME MISALIGNED.
The risk
THIS MISALIGNMENT CAN CAUSE THE VEHICLE TO LOSE DIRECTIONAL STABILITY AT SPEEDS THAT MAY RESULT IN A VEHICLE CRASH.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
DEALERS WILL INSPECT THE VEHICLES TO DETERMINE IF THEY WERE MANUFACTURED WITH A SUSPECT TORQUE ROD END. IF A SUSPECT TORQUE ROD END IS FOUND, THE ENTIRE TORQUE ROD WILL BE REPLACED. THE RECALL BEGAN ON OCTOBER 9, 2006. OWNERS MAY CONTACT PETERBILT AT 1-940-591-4196 OR KENWORTH AT 1-425-828-5440.
KENWORTH RECALL NO. 06KW1 AND PETERBILT RECALL NO. 1006C.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.
Affected vehicles
Related recalls
More Kenworth C500 recalls
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- 2018–2019 Kenworth C500 and 16 other models — An internal component in the clutch assembly may fail…
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Other campaigns involving Kenworth vehicles
Source: NHTSA recall database, campaign 06V391000 (manufacturer number 1006C & 06KW1). Data last verified Jul 30, 2026.