Description
The Dorman 555-103 Steel Cup Expansion Plug is a 36.5mm plug with a height of 0.410 inches. It is designed to be used in engine applications to seal off or close openings in the engine block. The steel construction ensures durability and longevity, while the cup design provides a secure fit. This expansion plug is a reliable choice for maintaining the integrity of your engine's components and preventing leaks.






