1983 Chevrolet El Camino Engine: 5.7L V8 DIESEL;. 1984 Chevrolet El Camino Engine: 5.7L V8 DIESEL;. Vacuum Closes Non-Bypass Heater Valve. Heater Valve. Type: Heater Valves. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.
