2006–2007 Kenworth C500, 2006–2007 Kenworth T2000, 2006–2007 Kenworth T800 and 1 other model Recall: CERTAIN TRUCKS FAIL TO COMPLY WITH THE BRAKE TIMING REGULATORY…
NHTSA campaign 07V090000 · Service Brakes, Air · filed Mar 9, 2007 · verified Jul 30, 2026
The defect
CERTAIN TRUCKS FAIL TO COMPLY WITH THE BRAKE TIMING REGULATORY REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." THE BRAKE VALVE WAS MOVED TO THE OPPOSITE RAIL, INCREASING THE LENGTH OF THE AIR LINE, WHICH IN TURN INCREASED THE WHEELBASE REQUIRING A DUAL RELAY VALVE SYSTEM. THE VEHICLES WERE MANUFACTURED WITH A SINGLE VALVE SYSTEM.
The risk
IF STOPPING DISTANCE WAS LIMITED, A VEHICLE CRASH COULD RESULT.
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 CONVERT THE SINGLE RELAY VALVE TO A DUAL RELAY VALVE SYSTEM FREE OF CHARGE. THE RECALL BEGAN ON MAY 21, 2007. OWNERS MAY CONTACT KENWORTH AT 425-828-5440.
KENWORTH RECALL NO. 07KW2.CUSTOMERS MAY 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…
- 2017–2019 Kenworth C500 and 12 other models — In certain driving conditions, such as on a long down-hill…
Other campaigns involving Kenworth vehicles
Source: NHTSA recall database, campaign 07V090000 (manufacturer number 07KW2). Data last verified Jul 30, 2026.