2008 Workhorse W21 Engine Blocks
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- Dorman®Autograde™ 2-7/31" Steel Cup Expansion PlugsWorkhorse W21 2008, Autograde™ 2-7/31" Steel Cup 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...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$12.88