The best fit for this product is Kubota equipment, specifically those with a K3011-10050 tractor model.
HD Switch BIGBearing HiTorque 205ftlb Billet Pulley Electric PTO Clutch 5100875SM for Ferris iS2000Z iS3100Z Snapper Simplicity Cobalt Mower 5100875 Warner 5218-158 w/Larger Replaceable Pulley Bearing
HD Switch BIGBearing HiTorque 130ftlb Billet Pulley PTO Clutch 104-3624 109-7035 71410014 5219-13 5219-16 5219-18 5219-54 for Toro ExMark Wright Stander Warner ZMaster TimeCutter Laser Z CT Lawn Mower
HD Switch BIGBearing HiTorque 130ftlb PTO Clutch OEM Upgrade for Wright Stander 71410039 Blade Engagement Fits Zero Turn Mower
HD Switch HiTorque 150ftlb (OEM 105) BIGBearing Billet Pulley Clutch AM141536 & 20AMP PTO Switch AM135131 for John Deere X300 X300R X304 X305R X310 X320 X324 X340 X360 X500 X520 X530 X534 X540 X590
HD Switch HiTorque 260ftlbs BIGBearing Billet Pulley Electric PTO Blade Clutch 603336 5228-53 w/Larger Pulley Bearing & 791251 Diode Wire Harness fits Hustler Super Z Lawn Mower Warner 603336K 522853
HD Switch HiTorque 300ftlb BIGBearing Billet Pulley Electric PTO Clutch MA-GT-JD8CU1 AM104238 AM100847 w/Larger Pulley Bearing for John Deere 420 430 Tractors AM39329 AM100848 AM101137 AM104896