Vehicle recall 12V407000 · August 20, 2012
Kenworth T400, T600 and 3 more models
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.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- 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.
- Consequence
- 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.
- Remedy
- 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.
- Notes
- 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.
Recall details
- NHTSA campaign
- 12V407000
- Reported to NHTSA
- August 20, 2012
- Filed by
- PACCAR INCORPORATED
- Manufacturer campaign
- 12KWF
- Owner notification
- September 7, 2012
- Vehicles potentially affected
- 535
- Initiated by
- the manufacturer
- Components
- Power train › Driveline
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Kenworth T400 (2013): 2013
- Kenworth T600 (2013): 2013
- Kenworth T700 (2013): 2013
- Kenworth T800 (2013): 2013
- Kenworth W900 (2013): 2013
Has your Kenworth been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Kenworth dealer can also check your VIN. Recall repairs are free.