Equip your semi truck to be Ready for the Road Ahead™, with the Primatronics 12-10 Gauge Heat Shrink Butt Connector, a key component that effectively seals two wires together. Thanks to its ability to act as both a connector and sealant, this replacement piece is the ideal option to safely merge two wires together underneath a watertight seal. Crafted with tight and reliable connections to effectively handle high levels of currents. FleetPride is your First Click in Heavy Duty®.