Outfit your semi truck to be Ready for the Road Ahead with an efficient battery connection, with the Power Products 1 - 4/0 Gauge Top Post Heavy Duty Lead Terminal. Thanks to its vertical positioning above a battery, this replacement piece is the ideal option to transfer power between a battery and electrical system. Fashioned with clean and corrosion resistant materials to deliver first-class reliability. FleetPride is your First Click in Heavy Duty .