The defect
KENWORTH IS RECALLING MODEL YEAR 2009 THROUGH 2010 T2000, T800, T660 AND W900 TRUCKS MANUFACTURED BETWEEN NOVEMBER 12, 2008 AND SEPTEMBER 30, 2009. THE AXLE U-BOLTS ATTACHING THE AXLE TO THE SUSPENSION LEAF SPRING ON CERTAIN AG400L REAR SUSPENSIONS MAY HAVE RECEIVED INSUFFICIENT FASTENER TORQUE DURING THE INSTALLATION PROCESS. THE INSUFFICIENT TORQUE MAY ALLOW THE AXLE U-BOLT TO BECOME LOOSE, WHICH MAY CAUSE VIBRATION IN THE REAR SUSPENSION.
The risk
IF MULTIPLE FASTENERS WERE TO BECOME LOOSE, THE REAR AXLE MAY SHIFT RELATIVE TO THE REAR SUSPENSION LEAF SPRING, WHICH CAN RESULT IN LOSS OF CONTROL AND A CRASH.
The remedy
DEALERS WILL INSPECT THE AXLE U-BOLTS FOR VISIBLE DEFECTS, INCLUDING BENT AND/OR SMASHED THREADS AND RE-TORQUE THE AXLE U-BOLTS TO FACTORY SPECIFICATIONS. THE RECALL BEGAN ON NOVEMBER 4, 2009. OWNERS MAY CONTACT KENWORTH AT 425-828-5440.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Kenworth T2000 | 2009, 2010 |
| Kenworth T660 | 2009, 2010 |
| Kenworth T800 | 2009, 2010 |
| Kenworth W900 | 2009, 2010 |
Components: POWER TRAIN:AXLE ASSEMBLY
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Kenworth T2000 | 2009 | 0 | 12 |
| Kenworth T2000 | 2010 | 0 | 6 |
| Kenworth T660 | 2009 | 0 | 17 |
| Kenworth T660 | 2010 | 2 | 10 |
| Kenworth T800 | 2009 | 2 | 19 |
| Kenworth T800 | 2010 | 1 | 11 |
| Kenworth W900 | 2009 | 0 | 17 |
| Kenworth W900 | 2010 | 0 | 9 |
Other power train recalls in 2009
20 of the 491 recall campaigns reported to NHTSA in 2009 concerned the power train; PACCAR INCORPORATED filed 113 campaigns in all.
| 09V430000 27 Nov 2009 | DUTCHMEN MANUFACTURING, INC. |
| 09V436000 5 Nov 2009 | CHRYSLER LLC |
| 09V333000 20 Aug 2009 | VOLKSWAGEN OF AMERICA, INC |
| 09V240000 30 Jun 2009 | MACK TRUCKS, INC |
| 09V235000 25 Jun 2009 | CLASSIC MOTORWORKS LIMITED, USA |
| 09V229000 18 Jun 2009 | PACCAR INCORPORATED |
| 09V228000 18 Jun 2009 | KEYSTONE RV COMPANY |
| 09V164000 19 May 2009 | VOLKSWAGEN OF AMERICA, INC |
NHTSA recalls (public domain) · all recalls of 2009