Yokomo Y4-S4A Race-Grade Aluminum Shock Cylinder  [Y4-S4A]

Yokomo Y4-S4A SLF Aluminum shock cylinder for Big bore shock
Price:
AUD$26.83
Brand:
Yokomo
Model:
Y4-S4A
GTIN:
0639342214297
Condition:
Brand New
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Race-Grade Yokomo Y4-S4A Cylinder with Kashima Finish

The Yokomo Y4-S4A Aluminum Shock Cylinder upgrades YD-4 big bore shocks with a Kashima Coat that promotes smoother stroke and lowers vibration. That smoother action supports better tyre contact and steadier handling across varied track surfaces.

Engineered for Reliable Lap-to-Lap Performance

The Kashima surface treatment reduces friction on sliding surfaces, which helps limit wear and keeps damping characteristics more stable over time. This stability is valuable for racers and regular track riders chasing consistent setup feedback.

Specifications

  • Material: Aluminum finished with Kashima Coat
  • Compatibility: YD-4 big bore shock assemblies
  • Function: Improves smoothness of damping and traction consistency

An effective upgrade for enthusiasts who want a tougher YD-4 shock cylinder that aids control and traction without major setup changes.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Is installation difficult for a workshop technician?

Installation follows standard big bore shock procedures; a basic workshop toolkit and attention to seal seating will make the swap straightforward for most builders.

Will this cylinder change my car balance?

The Y4-S4A focuses on smoother damping rather than altering spring rates, so balance changes are subtle; tune oil and spring choice to match your handling goals.

How should I care for the Kashima surface?

Keep the sliding area clean and avoid abrasive cleaners; regular inspection and using recommended shock oils will preserve the finish and performance.

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