Supertech GM/Opel 5.0mm Viton Integral Valve Stem Seal - Single

Made from Viton, these integral valve stem seals from Supertech are built to handle the heat and stress inside your engine. The 5.0mm stem size is specific for many GM and Opel applications, ensuring a snug fit that keeps oil from getting past the valve guide and into the combustion chamber. This is crucial for preventing oil burning and maintaining good compression.

The integral design means the seal and its metal retainer are a single unit. This makes installation straightforward, as you don't have to worry about the seal separating from its housing. When you're rebuilding an engine or just replacing worn-out seals, these are a solid choice to keep your engine running clean and efficiently.