Paccar Incorporated: Service Brakes, Air › Slack Adjusters
Paccar Incorporated reported this defect to federal regulators on Mar 7, 2011 and put the number of vehicles at risk at 280. The repair is free for as long as the recall stands.
The defect
PACCAR IS RECALLING CERTAIN MODEL YEAR 2011-2012 KENWORTH T270/370, T440/T470, T800, T660, W900 AND C500 VEHICLES MANUFACTURED BETWEEN OCTOBER 18, 2010, AND JANUARY 28, 2011. CERTAIN CAST IRON SLACK ADJUSTER HOUSINGS, WHICH TRANSMIT BRAKING FORCE FROM THE BRAKE CHAMBER PUSH ROD TO THE BRAKE CAM TUBE, MAY INCLUDE A FLOW NOTCH IN THE HANDLE PORTION OF THE HOUSING DUE TO AN ERROR DURING THE CASTING PROCESS. A FLOW NOTCH IN THE HANDLE PORTION MAY REDUCE THE EFFECTIVE CROSS SECTION STRUCTURE AND CAUSE THE SLACK ADJUSTER HOUSING TO FRACTURE.
The risk
IF THE SLACK ADJUSTER HOUSING WERE TO FRACTURE, THE WHEEL BRAKE TO WHICH THE SLACK ADJUSTER HOUSING IS ATTACHED WOULD NO LONGER FUNCTION, WHICH COULD INCREASE VEHICLE STOPPING DISTANCES, AND IF MOUNTED ON THE STEER AXLE, COULD CAUSE THE VEHICLE TO PULL TO ONE SIDE DURING BRAKING, INCREASING THE RISK OF A CRASH.
The remedy
DEALERS WILL INSPECT AND REPLACE THE SLACK ADJUSTER HOUSING AS NECESSARY. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MARCH 30, 2011. OWNERS MAY CONTACT KENWORTH AT 425-828-5440.
16 model years covered
Newest first| Vehicle | Complaints | Recalls | Fires | Crashes |
|---|---|---|---|---|
| 2012 Kenworth C500 | 1 | 3 | 0 | 0 |
| 2012 Kenworth T170 | 0 | 3 | 0 | 0 |
| 2012 Kenworth T370 | 0 | 6 | 0 | 0 |
| 2012 Kenworth T440 | 0 | 9 | 0 | 0 |
| 2012 Kenworth T470 | 0 | 5 | 0 | 0 |
| 2012 Kenworth T660 | 1 | 9 | 0 | 0 |
| 2012 Kenworth T800 | 1 | 10 | 0 | 0 |
| 2012 Kenworth W900 | 0 | 8 | 0 | 0 |
| 2011 Kenworth C500 | 0 | 6 | 0 | 0 |
| 2011 Kenworth T270 | 0 | 4 | 0 | 0 |
| 2011 Kenworth T370 | 0 | 5 | 0 | 0 |
| 2011 Kenworth T440 | 0 | 7 | 0 | 0 |
| 2011 Kenworth T470 | 0 | 5 | 0 | 0 |
| 2011 Kenworth T660 | 1 | 13 | 0 | 0 |
| 2011 Kenworth T800 | 1 | 13 | 0 | 0 |
| 2011 Kenworth W900 | 0 | 10 | 0 | 0 |
What this page is, and what to do next
A recall is not an opinion. It is a Part 573 report a manufacturer is required by federal law to file once it decides a defect poses an unreasonable risk to safety, and it commits them to repairing the vehicle at no cost to the owner. The three passages above are the manufacturer’s own wording as published by NHTSA.
This page describes the campaign. It cannot tell you whether one particular car has already been through the shop — that is tracked by VIN, and only the manufacturer knows it. Check yours at nhtsa.gov/recalls or with a franchised dealer, quoting campaign number 11V157000.
Full record for the 2012 Kenworth C500 → · Recalls carrying a do-not-drive advisory → · Where this data comes from →