Wiseco Pistons
Wiseco WK1041 Forged Piston Kit for 1990-1996 Yamaha WaveRunner SuperJet 650 +0.050" Oversize
Wiseco WK1307 2-Stroke Watercraft Piston Kit 81mm Bore for Polaris SL/SLTX 1050
Wiseco WPPF067 Clutch Fiber Kit Friction Plates – 9-Piece Set for Yamaha YZ250F / WR250F / YZ250FX
Wiseco WK1335 Yamaha GP 800 81mm 2-Stroke Forged Piston Kit with Top-End Gasket Kit
Wiseco WK1328 84mm 2-Stroke Forged Piston Kit for Wet Jet PWC with Top-End Gasket Kit
Wiseco WK1325 718cc Forged 2-Stroke Piston Kit 82mm Overbore for Wet Jet Kraze/ZX 700 PWC
Wiseco WK1321 2-Stroke Watercraft Complete Forged Piston Kit with Top-End Gasket Kit
Wiseco WK1263 Forged Oversize Piston Kit for Powersports Engines
Wiseco 2346M07000 Forged Piston Kit - Polaris Indy RXL / SKS Snowmobile 70.00mm
Wiseco Pistons: Over 80 Years of Forged Performance
When it comes to high-performance engine internals, few names carry as much weight as Wiseco. Founded more than 80 years ago and headquartered in Mentor, Ohio, Wiseco has grown from a passion-driven racing operation into one of the world's foremost manufacturers of forged pistons for both automotive and powersport applications. Their pistons are engineered, forged, and machined on cutting-edge equipment right in the United States — a commitment to domestic craftsmanship that enthusiasts and professional racers have come to rely on.
At the heart of Wiseco's lineup are their engine pistons — the product that built the brand's legendary reputation. Unlike cast pistons, Wiseco's forged pistons are produced under intense pressure, aligning the grain structure of the aluminum for superior tensile strength and thermal resistance. Whether the application is a high-revving dirt bike, a boosted street car, a snowmobile pushing through deep powder, or a drag motor chasing elapsed-time records, Wiseco engineers a piston to suit the specific demands of each engine. Their catalog spans both 2-stroke and 4-stroke platforms, covering hundreds of engine applications for motorcycles, ATVs, UTVs, personal watercraft, snowmobiles, and performance automobiles.
For riders and builders focused on the powersport world, Wiseco's dedicated powersport pistons category delivers that same forged-aluminum precision tuned specifically for the unique demands of off-road and on-water machines. From Supercross champions to mountain snowmobile riders, Wiseco's powersport piston technology has proven itself at every level of competition.
Wiseco doesn't stop at pistons alone. A proper engine build requires complementary components, and the brand delivers. Their engine piston ring compressors are purpose-built tools that simplify and protect the installation process, ensuring rings seat correctly without damage — a small but critical step in any successful rebuild. For builders tackling a complete overhaul, Wiseco's engine rebuild kits bundle precision-matched components together, taking the guesswork out of parts sourcing and compatibility. And for those who want to address every wear surface in one go, Wiseco's engine complete assembly overhaul kits provide a comprehensive solution that covers the full scope of an engine restoration.
What sets Wiseco apart isn't just manufacturing quality — it's their deep roots in motorsport culture. Much of the team behind Wiseco's doors are avid riders and racers themselves, which means product development is shaped by real-world feedback from the track and trail. That philosophy — built for racers, by racers — is woven into every component that leaves their Mentor, Ohio facility. Whether you're chasing a championship or simply want the confidence that comes with a freshly rebuilt engine, Wiseco delivers the performance and reliability that serious builders demand.