Electric PTO Clutch / Xtreme X0243Pack Size:1Hustler 781039K, Hustler 781039, Hustler 787408, Xtreme X0243, Big Dog 781039, Big Dog 781039KStens 255-659, Oregon 33-188, Rotary 11445, Sunbelt B1EC122, Sunbelt B1XT0243Hustler Mini Z, Standard Z and Super Z with 52", 60" and 72" Cool Coil Technology, Direction: Clockwise, ID: 1 1/8 ", Replaceable Pulley Bearing, Heavy Duty "FatBoy Series" Upgrade, Uses belt width: 1/2 " or 5/8", Diameter Pulley: 6 1/4 ", Super Smooth "Xtreme Precision" Machined Pulley, Upgraded to 4 Layer "Xtreme TOUGH" Integrated, Water Tight, Impact Resistant Wire Harness - with Xtreme's "Integrated Diode"