What's New?

• ProX is continuously working to expand its coverage of piston kits for late model, off-road motorcycles, including two-stroke and four-stroke models from Beta, Honda, Husqvarna, Kawasaki, KTM, Yamaha, and Suzuki

• ATV and UTV owners from work to play have rebuilds covered with piston kits for many late models, including Polaris RZR 900, 1000, and Turbo, Honda Rubicon, Polaris Sportsman, Yamaha Wolverine, and more

• Engine rebuild kits for Polaris 800 models, including an in-house-developed crankshaft assembly, provide components needed for a top and bottom end rebuild in one box, under one part number

• Ultralight steel rear sprockets deliver longevity of steel material with less weight compromise than standard steel sprockets

• ProX is always adding more fitments to its complete range of performance replacement components!

Polaris RZR/Sportsman 800 Engine Rebuild Kit