Ensure your semi is Ready for the Road Ahead™ with a seamless transition of gears, with the OTR 15.5" x 2" 9-Spring E-Z Pedal Manual Adjust Clutch. Thanks to its specialized design, this replacement clutch is able to engage / disengage the engine from the transmission, permitting the safe change of gears. Fashioned with top-tier materials to transmit maximum power, deliver a smooth engagement, and reduce drag. FleetPride is your First Click in Heavy Duty®.