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The Cometic valve stem seal for 2003–2008 Dodge Cummins 5.9L ISB common-rail engines is a single green exhaust seal constructed with a metal-jacket and Viton sealing element. It helps prevent oil leakage at the exhaust valve stem under heat and combustion exposure. Provided dimensions (.265 x .500 x .635 x 1.126) reflect the metal-jacket profile for proper fit in compatible heads.
Cometic 03-08 Dodge Cummins 5.9L ISB Common Rail Green Exhaust Valve Stem Seal
