489XAAHX-A3XD PTO Power Take Off 8 Bolts. Brand new Chelsea Pto, truck dumper pto, Power Take Off Chelsea replacement number: 489XAAHX-A3XD model 8 bolts with output option: 1-1/4″ round standard shaft. Including air shift kit, gaskets, stud kit, regulator valve and signal wire. Direct mount, fit on transmission Fuller RTLO, RTO, RTX, RTOF, RT, FS. Feel free to call for your pto’s set up needs and price.