2013 Kenworth T400, 2013 Kenworth T600, 2013 Kenworth T700 and 2 other models Recall: Cap screws securing the main driveline to the forward rear axle and cap…
NHTSA campaign 12V407000 · Power Train · filed Aug 20, 2012 · verified Jul 30, 2026
The defect
Paccar is recalling certain model year 2013 kenworth T400, T600, T700, T800, and W900 vehicles, manufactured from July 18, 2012, through August 10, 2012. Cap screws securing the main driveline to the forward rear axle and cap screws on the inter-axle driveline may not have been properly torqued.
The risk
Fasteners which are not properly torqued to specification can result in the driveline separating from the vehicle, disabling the vehicle and increasing the risk of a crash. The separated component could also become a road hazard.
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 inspect and re-torque the each of the affected fasteners, free of charge. The safety recall began on September 7, 2012. Owners may contact Kenworth at 1-425-828-5440.
Kenworth's recall number is 12KWF. Owners 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 T400 recalls
Other campaigns involving Kenworth vehicles
Source: NHTSA recall database, campaign 12V407000 (manufacturer number 12KWF). Data last verified Jul 30, 2026.