43-089
Service Bulletin/Repair Instructions
This optional software update is expected to be available after 08/28/2026.
Vehicle report
2024 KENWORTH W900
Service bulletins
10 bulletinsTechnical 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.
43-087
Emissions
EMY21-25 GHG Label Replacement (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation. (PB) Certain Model 367 / 389 / 567 / 579 / 589 have updated GHG labels available for order and installation.
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.
24KWD
Service Bulletin/Repair Instructions
SAFETY RECALL Additional chassis have been included. The chassis list has been updated. Certain T370 / T440 / T470 / T480 / T660 / T680 / T800 / T880 / W900 / C500 chassis may be equipped with air tank reservoirs that have less than twelve times the combined volume of all service brake chambers which fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) No.121, Air Brake Systems.
R2306 - KW
Service Bulletin/Repair Instructions
EMUX retrofit procedures updated to make it clear that the VECU3 must have software updated and vehicle mileage confirmed correct before updating the Digital Display. Parts and Procedure section also updated to include the Vehicle Emissions Control Information label ordering and installation instructions. This label is required for all chassis involved in R2306. Included additional reference to Cummins bulletin C7014 in the procedure section for ordering emissions labels.
24KWB
Service Bulletin/Repair Instructions
Safety Recall Certain model year 2024 T800/T880/W900/W990 trucks equipped with Hendrickson COMPOSILITE® EXS20 or Watson & Chalin SL-2065 steerable auxiliary lift axles may have bearing journals that may not have been seated correctly to the steering knuckle assembly components during manufacture. Both the Hendrickson COMPOSILITE® EXS20 and Watson & Chalin SL-2065 repairs will be coordinated and performed by Hendrickson.
23KWK
Service Bulletin/Repair Instructions
Safety Recall Repair parts and procedures are now available. On certain Kenworth model years 2018 through 2024 C500/T660/T800/W900 trucks with Sears Atlas 70 or 80 series seats, a spacer was installed on the seatbelt mounting assembly. In a severe collision, the ICP bar may fail, increasing the risk of injury.
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.