For 1982-1990 GMC S15 - HVAC Heater Core Four Seasons

Part Type: HVAC Heater Core. 1982 GMC S15 w/ AC;. 1983 GMC S15 w/ AC;. 1984 GMC S15 Engine: 1.9L L4 GAS; w/ AC;. 1984 GMC S15 Engine: 2.0L L4 GAS; w/ AC;. 1984 GMC S15 Engine: 2.8L V6 GAS; w/ AC;. 1985 GMC S15 Engine: 1.9L L4; w/ AC;.