Supertech Nissan RB26 Factory Shim Replacement Dia 12.15mm Thickness 3.375mm

These Supertech valve shims are made to a precise 12.15mm diameter and 3.375mm thickness, offering a direct replacement for the factory shims in your Nissan RB26 engine. When you're rebuilding or tuning your engine, getting the valve lash set correctly is critical for performance and longevity. Using shims that meet the original specifications ensures that you can achieve the proper clearances without issue.

Supertech manufactures these shims to exact factory dimensions, so you know they'll fit and function as intended. This means you can confidently set your valve lash to the manufacturer's recommended specifications, ensuring your RB26 runs smoothly and efficiently. Having the right size shim available is key to getting the valve train dialed in properly during an engine build.