Acdelco Gm Genuine Parts 251-2031 Water Pump O-Ring

Acdelco Gm Original Equipment Multi-Purpose O-Rings Are Used In Some Applications Instead Of Paper Or Composite Gaskets To Seal Engine Components. The Interface Between Components Will Have A Machined Groove To Accept The O-Ring. The O-Ring Is Slightly Compressed When Assembled To Provide A Liquid-Tight Seal, Keeping Engine Fluids In And Air And Dirt Out. These Original Equipment O-Rings Have Been Manufactured To Fit Your Gm Vehicle, Providing The Same Performance, Durability, And Service Life You Expect From General Motors.