Vehicle brand                                   Model, Engine, Gearbox, Axle, Cabin          

         Description          

         Replaces             

The king pin kit is the critical steering pivot assembly on heavy-duty truck front axles. It connects the steering knuckle to the axle beam, enabling the wheels to turn left or right for directional control. The kit typically includes the king pin, bronze bushings, thrust bearings, and grease seals. Its main roles: supporting the front-end vehicle weight, transmitting vertical and lateral loads between the axle and wheels, maintaining proper camber and caster angles for stable straight-line tracking, and providing a durable, low-friction pivot point. Regular lubrication and timely replacement reduce steering play, prevent wheel shimmy, minimize uneven tire wear, and ensure safe, precise maneuvering under heavy loads and rough roads.