Wiseco Pistons
Wiseco 4755M09800 4-Stroke Forged Piston Kit 98mm +2mm Overbore 12.5:1 Compression
Wiseco 455M05200 Classic Forged Piston Kit +2mm 52mm Oversize for Yamaha YZ100
Wiseco PK1609 Pro-Lite 2-Stroke Top End Piston Kit 56mm 2mm Overbore
Wiseco 40108M10100 Forged Piston Kit 101.00mm Bore 10:1 Compression Sea-Doo
Wiseco 40108M10000 Forged Piston Kit Sea-Doo 1503cc 4-TEC 10:1 High Compression Standard Bore 99.94mm
Wiseco PK1583 Top End Piston Kit 89mm Bore Honda CR480R CR500R 2-Stroke
Wiseco 40120M07680 Forged Piston Kit CRF250R 14.5:1 High Compression Long Rod 76.80mm
Wiseco Pistons 40109M08400 High-Performance Piston Kit Compression - 84mm 11 1
Wiseco 40122M04850 10.5:1 Forged Piston Kit Polaris 90 Outlaw Sportsman 48.50mm
Wiseco 40122M04800 Forged Piston 10.5:1 Compression Polaris 90 Outlaw/Sportsman
Wiseco Pistons 40122M04700 High-Performance Piston Kit Compression - 10.5 1
Wiseco S686C DLC Wrist Pin 16mm x 10.3mm x 41.5mm Straight Wall Powersports Piston Pin
Wiseco PK1910 Pro-Lite 2-Stroke Piston Kit 54.50mm Bore (880M05450)
Wiseco PK1697 Pro-Lite Top End Piston Kit for Yamaha - 2-Stroke 69mm YZ250 WR250
Wiseco PK1703 Pro-Lite Top End Piston Kit Bore - 2-Stroke 56mm
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.