Supertech Nissan RB26 Factory Shim Replacement 12.15mm Diameter 4.30mm Thick

Supertech offers this 4.30mm thick valve shim, with a 12.15mm diameter, designed as a direct replacement for factory shims in Nissan RB26 engines. Proper valve clearance is crucial for engine performance and longevity, ensuring the valves open and close at the correct times relative to the piston's position. When rebuilding or tuning an RB26, having access to precise shim sizes like this one is essential for setting valve lash accurately.

This shim is made to factory specifications, meaning it will fit correctly within the valve train assembly. Using a well-made replacement shim helps maintain the intended valve geometry and operating characteristics of the RB26 engine. It's a small but important part for anyone working on the cylinder head of these popular Nissan engines.