Engine Kit

Freshen up that top end with ProX’s selection of piston kits, a comprehensive and reliable performance replacement option supplied complete with a piston, ring(s), wrist pin, and circlips. Available for two-stroke and four-stroke applications, ProX pistons are available in graded A, B, C, etc. sizing to help you achieve proper piston-to-wall clearance as the engine time goes up. ProX two-stroke pistons are manufactured by leading OEM suppliers using hypereutectic cast aluminum alloy, while ProX four-stroke pistons are forged or cast, depending on your application. ProX piston kits are designed to restore OEM performance and durability in a convenient and budget friendly package. Find your OEM replacement Dirt Bike Pistons, Motorcycle Pistons, Scooter Pistons, Moped Pistons, ATV Pistons, UTV Pistons, Personal Watercraft Pistons, or Snowmobile Pistons here!