Xtreme Outdoor Power Equipment Replaces Troy Bilt White PTO Clutch 917-05001, 91705001 - Free Upgraded Bearings Xtremely cool coil design runs over 20% cooler for a longer service life  plus every clutch is backed by a buyer-protection 1-year warranty Replaces OEM: 717-1774, 717-1774B, 717-1774C, 917-05001, 917-1774, 917-1774B, 917-1774C Replaces Warner: 5219-98, 5219-25 Specs: 1.000 Crankshaft, 6.000" Pulley, Counter Clockwise, 1/2" or 5/8" Belt, 125 ft. lbs torque Free Upgraded - High Temperature Bearings. TOUGH Machined Billet Pulley with Replaceable Bearing - OEM Upgrade