Valve Disc Kit 8pk .542 OD X .012in

The Valve Disc Kit 8pk .542 OD X .012in is a precision component engineered for high-performance shock absorber tuning and suspension system optimization. Built for mechanics and enthusiasts who demand control over damping characteristics, this eight-piece kit allows you to fine-tune your vehicle's suspension response by adjusting compression and rebound valving. Whether you're dialing in a street-driven build, competition setup, or restoring a classic with modern suspension geometry, these valve discs are essential for achieving repeatable, predictable shock performance across varying load conditions and driving dynamics.

Each disc measures .542 inches in outer diameter with a precise .012-inch thickness, engineered to stack and nest within shock piston assemblies to control oil flow rates and pressure curves. The thin, uniform profile ensures consistent valve opening characteristics under acceleration, braking, and cornering loads—critical for maintaining suspension compliance without wallowing or harshness. By selecting different disc configurations, you can modify the shock's damping curve to match your vehicle's weight, spring rates, and intended use, from smooth highway cruising to aggressive track work. The compact 8-pack provides multiple tuning options without requiring complete shock disassembly between adjustments.

This kit suits QA1 shock systems and OEM applications requiring OD-matched valve stack components, making it ideal for professional suspension technicians, fabricators, and serious gearheads building custom suspension platforms. Installation requires basic shock service knowledge and proper piston rod tools to safely access the internal valve stack; incorrect assembly can compromise damping function and vehicle safety. Verify your shock model and valve configuration before ordering to ensure compatibility with your specific suspension system and performance objectives.