8AG7-10-271 RF Engine Overhaul Gasket Kit Complete Engine Rebuild Kit for Truck Spare Parts A king pin kit is a collection of parts used to swap out the king pins in a car's steering knuckles. King pins are a crucial component of a car's steering system since they sustain the weight of the car while enabling a smooth turn. King pins can become worn or destroyed over time, which can impair the handling and stability of the car and lead to steering issues. New king pins,