2007–2014 Kenworth T800, 2007–2014 Kenworth W900 Recall: Affected trucks have brake chambers that take longer to apply or release…
NHTSA campaign 13V573000 · Service Brakes · filed Nov 18, 2013 · verified Jul 30, 2026
The defect
PACCAR is recalling certain model year 2007-2014 Kenworth T800 and W900 trucks manufactured March 22, 2006, through July 15, 2013 and equipped with Primaax tridem rear suspensions and a pusher and/or tag axle. The affected trucks have brake chambers that take longer to apply or release the brakes than the required time limit. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 121, "Air Brake Systems."
The risk
Brakes that take longer to apply may lengthen the distance needed to stop the truck, increasing the risk of a 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
PACCAR will notify owners, and dealers will modify the air brake system, free of charge. The recall began on January 15, 2014. Owners may contact PACCAR at 1-425-468-7400. Kenworth's recall number is 13KWL.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
Related recalls
More Kenworth T800 recalls
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Other campaigns involving Kenworth vehicles
Source: NHTSA recall database, campaign 13V573000 (manufacturer number 13KWL). Data last verified Jul 30, 2026.