Supertech Nissan RB26 Factory Shim Replacement 12.15mm Diameter 4.40mm Thick

Supertech is known for making performance engine components, and this valve shim is a good example of their focus on precision parts for specific engines. If you're working on a Nissan RB26 engine, this shim is designed to replace the factory part, helping you get your valve lash set just right.

This particular shim measures 4.40mm thick and has a 12.15mm diameter. Getting the valve lash correct is important for engine performance and longevity, ensuring the valves open and close at the right times without excessive wear. Using a well-made replacement shim like this one helps ensure you can achieve the correct specification during your engine build or tune-up.