Aftermarket Engine Valve Adjuster Shim

This engine valve adjuster shim (also called a valve shim, tappet shim, or valve clearance adjusting shim) is used to set accurate valve lash in shim-under-bucket valve train designs. Fitting the correct shim thickness restores the specified clearance between the cam lobe and the valve stem. This helps the engine run smoothly and efficiently.

Key Features:

• Precision-ground flat disc design for consistent valve clearance adjustment
• Available in a range of thicknesses so the correct valve lash can be dialed in
• Hardened steel construction to resist wear under repeated valve train loading
• Helps maintain proper valve timing, compression, and engine performance
• Suited to routine valve clearance service and engine rebuilds

Correct valve clearance helps reduce valve train noise and prevents burned or poorly seating valves. It also supports reliable starting and steady idle. Select the shim thickness that matches your measured valve clearance requirements.