1978 Mazda RX-4 Engine Blocks
- Dorman®Autograde™ Expansion PlugMazda RX-4 1978, Autograde™ Expansion Plug by Dorman®. This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.Direct replacement - this engine expansion plug matches the fit and function of the factory part on specified years, makes and modelsIdeal solution - this plug is a reliable replacement for an original part that is missing or has failed due to fatigue$1.76 - $1.85
- Dorman®Autograde™ Expansion PlugsMazda RX-4 1978, Autograde™ Expansion Plugs by Dorman®. This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable...Direct replacement - this engine expansion plug matches the fit and function of the factory part on specified years, makes and modelsIdeal solution - this plug is a reliable replacement for an original part that is missing or has failed due to fatigue$7.10 - $11.15