Yokomo R12-14S Hex Head King Pin for YRX12/R12/GT series  [R12-14S]

Hex head king pin for steering knuckle

This aftermarket king pin fits Yokomo YRX12/R12/GT family knuckles as a direct replacement for the stock pivot pin. It uses a hex socket button head that accepts a 1.5mm hex wrench for tightening, improving service speed when swapping or adjusting front end parts.

The R12-14S is manufactured with a longer overall length than the stock pin to allow the fixing nut to be fully engaged even when a spacer is fitted under the knuckle (spacer R12-14C?420 sold separately), which helps maintain secure clamping after ride-height or caster adjustments.

Intended role: this part is a low-cost tuning and maintenance item to improve fastening reliability at the knuckle during setup changes, not a load-bearing redesign. Install with a clean mating surface and the correct 1.5mm hex driver, tighten until snug and avoid excessive torque to prevent thread damage.