Description

This Dorman 550-031 Concave Steel Cup Expansion Plug is the perfect addition to your engine parts collection. With a 2 1/4 inch size, it can fit most engines and provide the necessary support for your engine's expansion. The plug is made of high-quality steel, ensuring durability and longevity.

The plug's interchange part number is P31S, and it is compatible with various car and truck models. Its brand, Dorman, is known for producing reliable and high-quality parts. This expansion plug is a must-have for any car or truck owner who wants to ensure their engine's proper function.