Engine Fast Idle Relay. 1984 Buick Century Eng: 2.8L V6;. 1985 Buick Century Eng: 2.8L V6;. 1986 Buick Century Eng: 2.8L V6;. Notes: Eng: 2.8L V6;. Contents: Relay. Functions: Relay. IMPORTANT: To confirm that this part fits your vehicle, enter your vehicles Year, Make, Model, Trim and Engine in the Compatibility Table.
