This is an RC-scale replacement king pin set designed for Tamiya WR-02 based cars. The pack contains four steel king pins specified as 5mmx6.2mmXM4, intended to replace worn or damaged king pins on Wild Willy 2 and compatible chassis.
Functionally these pins serve as pivot points in the steering assembly; swapping worn pins restores steering geometry and reduces play in the spindle and knuckle. Use the exact dimensions provided to confirm fit before installation, and check the mating holes and bearings for wear while the hub is disassembled.
Installation notes: remove the wheel and hub assembly, inspect the spindle and any associated bushings or bearings, slide in the new pins and secure according to your chassis hardware. Verify free movement of the knuckle and correct preload on bearings after reassembly. This is a scale RC replacement part, not for real vehicle use.
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