2021 Kenworth W900B TSBs
6 Technical Service Bulletins across 3 categories
Categories
Software & Calibration
3 bulletinsThe verbiage in the Introduction section has been updated.
Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values.
Certain vehicle model years 2020-2025 K270, K370, T270, T280, T370, T380, T480, T680, T880, W900 chassis have updated...
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Greenhouse Gas (GHG) labels available for installation.
Other
2 bulletinsDue to supplier constraints, an authorized aftermarket surge tank has been made available.
"Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes.
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2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
Engine
1 bulletinProcedure pictures updated for clarity.
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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.