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December 1, 2025 Service bulletin

Technical Service Bulletin Low Coolant Sensor

Western Star technical service bulletin TSB54-101-WST for 2022-2026 Western Star 47X and 2021-2026 Western Star 49X.

Bulletin number
TSB54-101-WST
Component
Engine
Summary
Technical Service Bulletin Low Coolant Sensor

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

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