Aftermarket Engine Valve Adjuster Shim Thickness

Engine valve adjuster shims, also called valve shims, valve clearance shims or valve lash adjusting shims, are precision-ground discs used to set correct valve clearance in engines with shim-under-bucket valve trains. This product line offers replacement shims in a range of thicknesses so you can restore proper valve lash during a valve adjustment or engine rebuild.

Key Features:

• Precision-machined, flat and parallel surfaces for consistent valve lash adjustment
• Hardened steel construction made to resist wear under repeated valve train loading
• Offered in multiple thicknesses to dial in the exact clearance your engine specification calls for
• Suited to motorcycle, powersports and automotive engines that use shim-type tappet buckets
• Replacement shim for service and maintenance of the valve train

Correct valve clearance helps maintain smooth idle, steady power delivery, good fuel efficiency and long valve train life. Select the child item with the thickness you need to match your measured clearance and the engine manufacturer's specification.