Product Details: Prepare your semi to be Ready for the Road Ahead™, with the Flaming River 2-Position Battery Disconnect Shut-Off Switch that provides enhanced control of an electrical system. This replacement switch works to quickly shut off the power to a battery system, ceasing the transfer of power almost immediately. Engineered with silver-plated copper electrical contacts to seamlessly pair with wires. FleetPride is your First Click in Heavy Duty®.