Supertech VW/Audi / BMW 6mm Viton Exhaust Valve Stem Seal - Single (Drop Ship Only)

If you're rebuilding the top end of your VW, Audi, or BMW engine, getting the valve seals right is crucial. These Supertech valve stem seals are made from Viton, a material known for its excellent resistance to heat and oil, which is exactly what you need where the exhaust valve meets the guide. Properly sealing the valve stem helps keep oil out of the combustion chamber, preventing excessive smoke and oil consumption.

This particular seal is designed for a 6mm valve stem, a common size in many performance-oriented VW, Audi, and BMW engines. Viton is a smart choice here because exhaust valves get hot, and standard rubber seals can break down quickly under those conditions. Using a material like Viton means these seals will hold up better over time, even in demanding applications. It's a small part, but it makes a big difference in keeping your engine running clean and preventing oil burning.