Buy 1989 Buick Century Heater case. w/AC. w/baffle. AIR CONDITIONER and HEATER. EVAPORATOR and HEATER AIR, CONDITIONER - OEM Buick Part # 3041345

1ST design. 2. 2 liter. 2. 5 liter. 2. 8 liter. 2ND design. 3. 0 & 4. 3 liter. 3. 1 liter. 3. 3 liter. 3. 8 liter. ALL. Bolt-on type. Defroster actuator. Evaporator core. Evaporator water. Heater case. Mode. Press-on type. Temperature. W/BAFFLE.