Vehicle report

2021 KENWORTH W900B

Service bulletins

4 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

24KWL/PBL

Service Bulletin/Repair Instructions

The verbiage in the Introduction section has been updated.

14-034

Service Bulletin/Repair Instructions

Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values.

45-070

Service Bulletin/Repair Instructions

Procedure pictures updated for clarity. When troubleshooting Cummins X15 fault codes 555 or 556, follow this additional testing, inspection, and documentation procedure to help identify the root cause of dusted engines. This is not a stand-alone process but must be used alongside Cummins troubleshooting steps. Cummins Quickserve will reference this bulletin for fault codes 555 or 556.

43-076

Service Bulletin/Repair Instructions

Certain vehicle model years 2020-2025 K270, K370, T270, T280, T370, T380, T480, T680, T880, W900 chassis have updated Greenhouse Gas (GHG) labels available for installation.

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.