Western Star 4900, 6900 +1 more: Fuel System

Affects Western Star 4900, 6900, 49X · 2025 — about 76 vehicles.

The hazard

Issue: On certain trucks equipped with a Cummins X15 engine, the fuel pump may not have been manufactured properly. As a result, the fuel pump barrels could break and cause a fuel leak. If this happens, the engine could stall. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: Cummins will notify owners by mail and advise you to take your vehicle to a Cummins authorized service facility to replace the fuel pump barrels.

What to do

Contact your dealer; the remedy details were not included in the filing.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational