The Stemco Double Lock King Pin Kit is designed to provide superior vehicle handling and performance. This kit is intended to survive a lot of use and difficult circumstances, minimizing delay during repairs or replacement. The kit includes a double lock king pin that provides 300% extra grease. Furthermore, a slot in the original pin allows grease to lubricate the bearing. Installation is easy and fast, with half the time and effort. This kit is perfect for those who want to ensure their vehicle is running at its best. FleetPride is your First Click in Heavy Duty®.