Supertech Nissan RB26 Factory Shim Replacement 12.15mm Diameter 3.50mm Thickness

When you're rebuilding the top end of your Nissan RB26 engine, getting the valve lash just right is critical for performance and longevity. These factory shim replacements from Supertech are designed to help you achieve that precise adjustment. They are made to the exact specifications needed to ensure your valves open and close at the correct times, which is key for proper combustion and engine health.

This particular shim measures 12.15mm in diameter and is 3.50mm thick. Using the correct shims ensures that the clearance between your camshaft lobes and the valve buckets is within the manufacturer's recommended range. This not only helps prevent valve train noise but also ensures that your valves are seating properly, which is vital for compression and preventing damage over time. Supertech is known for making well-built engine components, and these shims are no exception, offering a reliable solution for your RB26 rebuild.