This Fits Your 2018 GMC Sierra 2500 HD 6.0L Vortec V8 FLEX A/T 4WD SLT Crew Cab Pickup
Full size assembly image of COOLING SYSTEM. COOLING FAN. RADIATOR. WATER PUMP. (1/1)

COOLING SYSTEM. COOLING FAN. RADIATOR. WATER PUMP.

Sierra; 6.0L; Inlet. Sierra; 6.0L; Lower. Sierra; 6.0L; Upper. Sierra; 6.6L; 180 Degrees. Sierra; 6.6L; 185 Degrees. Sierra; 6.6L; Inner. Sierra; 6.6L; Outer. Sierra; w/Diesel. Sierra; w/o Diesel.