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October 1, 2021 Service bulletin

Revised Technical Service Letter for GHG21 Detroit DD16 Poor Acceleration Complaints In Western Star 49X...

Western Star technical service bulletin 21TS-12REV for 2021-2022 Western Star 49X.

Bulletin number
21TS-12REV
Component
Engine and engine cooling
Summary
Revised Technical Service Letter for GHG21 Detroit DD16 Poor Acceleration Complaints In Western Star 49X Chassis When Lightly Loaded.

Owners of these vehicles have filed 1 complaints in the engine category.

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