Get your semi Ready for the Road Ahead with enhanced power for auxiliary applications, with the Chelsea 280 Series 10-Bolt 31/41 Standard Mount Power Take-Off. To generate power for a number of devices, this replacement PTO connects to the transmission, converting its rotational energy into usable power for auxiliary equipment. Constructed with top-tier components to provide long-term reliability for semis, tractors, and hydraulic engagements. FleetPride is your First Click in Heavy Duty .