Supertech VW/Audi / BMW 6mm Viton Exhaust Valve Stem Seal - Set of 12

Supertech is known for making solid internal engine components. This set of 12 exhaust valve stem seals is made from Viton, a material that holds up well to heat and oil, which is exactly what you need in an exhaust valve application. These seals are designed for a 6mm valve stem, common in many VW, Audi, and BMW engines.

When you're rebuilding an engine or just replacing worn-out valve seals, using a material like Viton helps ensure a good seal around the valve stem. This keeps oil from getting into the combustion chamber where it can cause blue smoke and fouled spark plugs. A proper seal also helps maintain compression. These are a direct replacement for the stock seals on the specified applications.