1975 GMC K15 w/ AC;. Part Type: HVAC Heater Core. 1976 GMC K15 w/ AC;. 1977 GMC K15 w/ AC;. 1978 GMC K15 w/ AC;. Aluminum Heater Core. Heater Core. Style: Aluminum Heater Core.
74853 Four Seasons HVAC Heater Control Valve Coolant Heater Valve
FOUR SEASONS HVAC Heater Core Fits 1992-1999 Oldsmobile 88
FOUR SEASONS HVAC Heater Core Fits 1990 GMC K2500
FOUR SEASONS HVAC Heater Core Fits 1987 GMC R1500
FOUR SEASONS HVAC Heater Core Fits 1975-1978 GMC P35
FOUR SEASONS HVAC Heater Core Fits 1987-1989 GMC R2500
