Prepare your semi to be Ready for the Road Ahead™, with the Eaton 15.5" x 2" Heavy Duty Advantage® Self-Adjust Clutch that provides a seamless transition of gears. By engaging / disengaging the engine from the transmission, this replacement component permits the safe change of gears. Constructed with top-tier materials to reduce drag, deliver a smooth engagement, and transmit maximum power. FleetPride is your First Click in Heavy Duty®.