Mack Trucks, Inc. (Mack) is recalling certain model year 2015 GU trucks manufactured April 28, 2014, to June 19, 2014. The Cummins ISL engines in these vehicles may have been equipped with Fleetguard UFF-XT fuel filters, part number FF63009, whose filter shell may separate from the fuel filter nut plate causing the engine to stall without warning.
If the engine stalls unexpectedly there is an increased risk of a crash.
Cummins will notify owners, and Cummins Service Centers will replace the fuel filter with a non-defective one, free of charge. The recall began on September 2014. Owners may contact Mack customer service at 1-800-528-6586. Mack's number for this recall is SC0384. Owners may also contact Cummins customer service at 1-800-223-4583.
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.