The Kyosho MZW407 stainless king pin ball is a practical upgrade for owners of the Mini-Z MR-03 chassis. It helps stabilise knuckle travel and cuts unwanted play for cleaner steering feel.
Produced from quality stainless steel, this king pin ball resists corrosion and maintains a smooth bearing surface. The finish lowers friction so steering inputs translate more predictably at speed.
Specifically engineered for Kyosho Mini-Z MR-03 assemblies, the MZW407 matches factory dimensions for a hassle-free swap. Use standard Mini-Z tools and verify alignment during refit.
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