Washer Shims .900 x .008 x .500 Valve (10pk)

Washer shims .900 x .008 x .500 valve components are precision engineered discs designed for shock valve tuning and assembly in high-performance racing applications. Built by Penske Racing Shocks, a trusted leader in suspension dynamics, these shims enable fine adjustment of damping characteristics in custom shock builds. Whether you're fine-tuning a competition vehicle or assembling a prototype shock system, this 10-pack provides the redundancy and precision needed for critical valve calibration work.

Each shim measures .900 inches in outer diameter with an .008-inch thickness and .500-inch inner bore—specifications that place them in the mid-range of Penske's valve disc lineup. Manufactured from hardened steel, these washers are designed to stack and create precise damping curves by controlling oil flow rates through shock valve stacks. The exact thickness of .008 inches allows for incremental adjustments to compression and rebound damping, a technique fundamental to race-level suspension development where even thousandths of an inch affect vehicle handling balance.

Technicians, shock builders, and racing engineers rely on Penske shims to dial in performance across road racing, autocross, and off-road platforms. The 10-pack format is ideal for prototype testing, allowing multiple shimming configurations to be assembled and evaluated without delay. Compatibility depends on your specific shock assembly and valve stack design—consult Penske documentation or your shock manufacturer to confirm bore diameter and overall dimensions match your application before ordering.