For hobbyists maintaining tight handling, the Kyosho MZW432-01B O-Ring & Diaphragm Set is designed for Mini-Z MR-03 oil shocks. It helps restore proper sealing and keeps oil where it belongs, preserving suspension performance.
Proper O-rings and diaphragms stop oil escape and maintain internal shock pressure, which keeps the damping consistent lap after lap. Replacing aged seals is a simple maintenance step that improves predictability on short tracks and indoor layouts.
Made specifically for the Mini-Z Series MR-03, this three-piece set contains the parts needed to service the oil shock assembly. Using genuine Kyosho spares reduces fitment guesswork and speeds up routine rebuilds.
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