PTO Clutch For Snapper Pro 5100084SM - Fatboy Upgrade - w/ Wire Repair Kit. DD Series Comfort Control Walk Behind. F50XT Series 36 19hp & 20hp Kawasaki. Citation Series Model Numbers: 5900522, 5900523, 5900524, 5900525, 5900526, 5900527, 5900530, 5900531, 5900762, 5900764, 5900820, 5900821, 5900954, 2690479. Over 146 Ferris Models Use this Clutch. Specs: 1.125" Crankshaft, 6.3" Pulley, Counter Clockwise, A/B Belt, 205 ft. Pictures shown are for illustration purposes only and do not necessarily represent the actual product. Please Message us if you need Model Lookup Assistance. Please ...