Yokomo YOKY4S8 SLF Big Bore Cap Balls, 4pc Set for YD-4 Dampers  [YOKY4S8]

Replacement YOKY4S8 cap balls suited to YD-4

The Yokomo YOKY4S8 shock cap ball set supplies replacement cap balls intended specifically for SLF big-bore dampers on the YD-4 platform. Sold as a pack of four, these parts form the contact interface inside the shock cap assembly, supporting correct piston alignment and consistent shock action during runs.

Note that this is an RC-only replacement component and not to be used on road vehicles. Verify YD-4 fitment when ordering to ensure compatibility with your damper top assembly.

Fitment tip: removing the shock cap and inspecting the existing cap ball for wear are the first steps. Swap in the new cap ball, check for smooth movement and firm seating, and take care to protect the shock oil and seals while you work.

Tuning note: the cap ball, though small, plays a role in seal alignment and piston travel inside SLF big-bore shocks. Fresh cap balls maintain steady damping characteristics, cut down cap-end play, and make setup tuning more repeatable when you change oil, pistons, or spring preload.

Compatibility

• YD-4