Supertech Nissan RB26 Factory Shim Replacement 12.15mm Diameter 4.25mm Thick

Supertech is known for making well-built internal engine components, and these valve shims are no different. If you're working on the valvetrain of a Nissan RB26 engine, you'll need precise shims to set your valve lash correctly. This shim measures 12.15mm in diameter and is 4.25mm thick, designed to replace the factory shim.

Getting the valve lash set just right is crucial for engine performance and longevity. Too loose, and you risk noise and improper valve seating; too tight, and you can cause damage. These Supertech shims are made to exact specifications to ensure you can achieve the correct clearance. They are a solid option when rebuilding or performing maintenance on your RB26 engine's cylinder head.