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Thomas Built Buses Saf-T-Liner HDX Recall 21V327: Diesel Fuel Leak Can Create Fire Risk

NHTSA campaign 21V327, reported May 7, 2021, 1,262 vehicles potentially affected.

What this recall means for you

A sealing washer on the high pressure fuel rail assembly may not seat correctly in the pilot bore holes, which can allow diesel fuel to leak from the fuel rail. This affects certain 2018 through 2021 Thomas Built Buses Saf-T-Liner HDX school buses.

Fuel leaking in the presence of an ignition source increases the risk of a fire. Owners should treat any signs of a diesel smell, visible fuel leakage, or fuel dripping near the engine as a reason to stop driving the bus and contact a dealer right away.

An authorized dealer will replace the fuel rail and fuel lines at no cost to you. Owners who have questions can contact DTNA customer service at 1-800-547-0712, referencing recall FL-886. You can also check your vehicle identification number (VIN) for any open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 21V327Daimler Trucks North America, LLC
Component
FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
Problem
Daimler Trucks North America, LLC (DNTA) is recalling certain 2018-2021 Thomas Built Buses Saf-T-Liner HDX School Buses. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Risk
A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy
Dealers will replace the fuel rail and fuel lines, free of charge. Interim owner notification letters were mailed on June 21, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-886.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Affected vehicles

Thomas Built Buses Saf-T-Liner HDX2018201920202021