Get your semi Ready for the Road Ahead with enhanced power for auxiliary applications, with the Chelsea 272 Series 6-Bolt 28/44 Aisin Only Mount Power Take-Off. By connecting to the transmission, this replacement PTO is able to convert the rotational energy into usable power for auxiliary devices. Constructed with top-tier components to provide long-term reliability for semis, tractors, and hydraulic engagements. FleetPride is your First Click in Heavy Duty .