1987 GMC R2500 w/o AC;. 1988 GMC R2500 w/o AC;. 1989 GMC R2500 w/o AC;. Part Type: HVAC Heater Core. Aluminum Heater Core. Heater Core. Style: Aluminum Heater Core. Manufacturer: Four Seasons.
GENUINE FOUR SEASONS HVAC Heater Control Valve-Heater Valve 4 Seasons 74006
74853 Four Seasons HVAC Heater Control Valve Coolant Heater Valve
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