OakTen PTO-Clutch being designed to meet or exceed OEM specification. The purpose of the Clutch is to connect the crankshaft to the driveshaft to provide output power for work. When engaged, the clutch ensures two shafts are locked together and spinning at the same speed. Over time, the rotor and brake can wear down as they are engaged and disengaged, and springs can crack, which usually require a replacement of the whole clutch. When installing, ensure that the drive pulley is smooth, the clutch is properly torqued with enough clamp, and any wires are properly fastened. We offer you one year warranty and hassel-free return or refund for all the parts sold. Let OakTen Parts fix your equipment today! Replace OEM number: Great Dane John Deere D38155 GDA10017 Fits Great Dane Chariot/Chariot LX, Super;Surfer Mowers with 48, 52 and 61 inch Deck;John Deere 647, 657, 667 Quik-Trak Mower;John Deere 717, 727 Mini-Frame Ztrak Specification: 1 inch inner diameter,6 inch pulley outer diameter,1/2 or 5/12 inch belt width.Counter Clockwise Rotation Super tough stainless steel rivets instead of copper or aluminum rivets to ensure a longer service life Comes with 1 wire harness One year warranty protects you after your purchase, we're confident that our parts will work flawlessly once installed in your equipment, but in a rare case if it does not, we'll replace or refund it anytime within one year of your order, if you have a problem, we are ready to assist you, please contact us for a replacement.