Stens 255-331X Xtreme Electric PTO Clutch. 1 1/8" ID, 5 3/8" Pulley Diameter, 1/2" or 5/8" Belt Width, counter clockwise rotation, Cool Coil Technology. Replaces OEM Ariens 092026, 092080, 092254, 09225400, AYP 128711, 539128711, Country Clipper E-6247, Craftsman 128711, 539128711, Dixon 128711, 539128711, 60473, 60499, 61516, Electrolux 128711, 539128711, Exmark 94-6136, Gravely 092026, 092080, 092254, 09225400, Husqvarna 128711, 539128711, Kees 128711, 539128711, Massey Ferguson 128711, 539128711, McCulloch 128711, 539128711, Poulan 128711, 539128711, Roper 128711, 539128711, Toro 94-6136, Warner 5218-10, 5218-223, Xtreme X0041. Fits models Ariens Hydro Pro 300, ZTR PM 200 and PM series, Dixon ZTR6023, ZTR7025 and ZTR7225, Gravely Hydro Pro 300, ZTR PM 200 and PM series.