Cummins Inc. (Cummins) is recalling certain ISX15 diesel engines, part number D103012BX03, and X15 diesel engines, part number D103016BX03. These engines have nylon fuel lines and were built with a banjo bolt containing an integrated single screen filter on the fuel pump. The fuel pump cooling circuit screens may become restricted by debris from filtration material causing the fuel line to burst when the vehicle is operated under certain driving conditions, such as on a long down-hill grade.
If the fuel line bursts, a significant amount of fuel may leak onto the road resulting in a roadway hazard for other motorists. The engine may also stall, increasing the risk of a crash.
Cummins will notify owners and dealers will replace the affected nylon line with a steel line, free of charge. The recall began November 21, 2018. Owners may contact Cummins customer service at 1-800-286-6467.
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.