Heavy Duty Centrifugal Clutch Assembly – 3/4 Bore Shaft with 12 Tooth Sprocket for #35 Chain 9 (2 Set Screws Include) – Premium Replacement Clutch for Go Kart, Gas Scooters, Dirt Bikes, Minibike, Pocket Bikes, ATVs – 3/4 Bore 12 Tooth 12T for #35 Chain Compatible with Honda, Briggs & Stratton, Tecumseh Gas Engines Replacement Clutch for Honda – Works with Honda GX160, GX200, GX 140, GX120, GC160, GC190, Harbor Freight Greyhound 196cc, Harbor Freight Predator 212cc 6.5 HP Premium Clutch for Briggs & Stratton 5 HP Engines – Works great with many other 2 to 6.5 HP with 3/4″ (.75 Inch) Crank Shaft Compatible with Tecumseh Engines – Works perfectly with 2 – 6.5 HP Engines with 3/4″ Crank Shaft Universal Fit 3/4″ Output Shaft Clutch – Our clutch also fits many other gas engines with 3/4 crank shaft, and 3/16?? key way. Compatible with Gas Scooters, Log Splitters, Water Pumps, Riding Lawn Mowers, Snow Blowers, Tractors, 5.5 HP clones (Chinese engine), 6.5 HP clones, and most 4 – 7 Horse Power