Product Details: Get your semi Ready for the Road Ahead™ with a seamless transition of gears, with the OTR 15.5" x 2" 7-Spring E-Z Pedal Manual Adjust Clutch. Due to its specialized design, this replacement clutch allows the engine to engage / disengage from the transmission, permitting 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®.