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The Supertech valve stem seal is a 6.6mm Viton exhaust seal in standard size, supplied individually for Mitsubishi engines. Designed as a direct replacement, the Viton material helps resist oil and heat at the exhaust valve stem to preserve sealing. This single seal is intended for targeted repairs where a standard-diameter exhaust valve stem seal is required.
Supertech Mitsubishi 6.6mm Viton Exhaust Valve Stem Seal - Single (STD Size)
