OER Parts offers a wide selection of Heater Parts for your 1994 Buick All Models. OER Parts offers 1994 Buick All Models Blower Motor, 1994 Buick All Models Heater Box, 1994 Buick All Models Heater Control Valves, 1994 Buick All Models Heater Cores. 1994 Buick All Models Hoses and Parts, 1994 Buick All Models Vent and Duct Parts.