
A Gates straight heater hose for 2014–2017 Freightliner Business Class M2 with Cummins ISL9 engines, this bottom straight heater hose matches factory heater plumbing. The preformed straight hose is intended as a replacement in the heater circuit to restore routing and flow. Use it during heater system service or when replacing degraded heater hoses to maintain reliable cabin heating operation.
Gates 14-17 Freightliner Business Class M2 Cummins ISL9 Diesel Heater (Bottom) Straight Heater Hose