Supertech Nissan RB26 Factory Shim Replacement 12.15mm Diameter 2.35mm Thick

With a precise 12.15mm diameter and a 2.35mm thickness, these Supertech shims are made to replace the factory shims in your Nissan RB26 engine. Proper valve lash adjustment is critical for engine performance and longevity, and using shims that meet factory specifications ensures you can achieve that accuracy.

These shims are designed to fit directly into the valve train, allowing for accurate adjustment of the valve clearance. When you're rebuilding the top end of your RB26 or performing routine valve adjustments, having shims that match the original dimensions is key to getting the engine running right.