Wiseco Pistons
Wiseco K573M865 Pro Tru Sport Compact Forged Piston Set 86.5mm Bore
Wiseco K573M87 Pro Tru Sport Compact Forged Piston Set 87mm Bore
Wiseco K594M855 Pro Tru Sport Compact Forged Piston Set - 85.5mm
Wiseco K568M89 Pro Tru Sport Compact Forged Piston Set 89mm -9cc Dish
Wiseco K573M875 Pro Tru Sport Compact Forged Piston Set 87.5mm Bore
Wiseco K594M86 Pro Tru Sport Compact Honda B-Series Forged Piston Set 86mm Bore
Wiseco K567M84 Sport Compact Forged Piston Set 84mm Bore Honda B-Series
Wiseco K567M845 Pro Tru Sport Compact Forged Piston Set 84.50mm Bore Honda B-Series
Wiseco K541M81 Pro Tru Sport Compact Forged Piston Set 81mm Honda B18
Wiseco K573M86 Pro Tru Sport Compact Forged Piston Set 86mm 11.6:1 Honda K20
Wiseco K544M89 Pro Tru Sport Compact Forged Piston Kit 89mm Bore -14cc Dish
Wiseco K593M82 Sport Compact Pro Tru Forged Piston Set 82mm Bore Honda B-Series
Wiseco K542M8125 Pro Tru Sport Compact Forged Piston Set 81.25mm Bore
Wiseco K560M85 Pro Tru Sport Compact Forged Piston Set 85mm Bore
Wiseco Pistons K547M87 Pro Tru Forged Piston Set Sport Compact
Wiseco K547M89 Pro Tru Forged Piston Set Sport Compact Series - 89mm
Wiseco K557M87 Pro Tru Sport Compact Forged Piston Set Flat Top - 87mm
Wiseco Pistons K1655 High-Performance Piston Kit for Harley-Davidson Evolution 883 to 1200 Conversion
Wiseco PTS501A4 Pro Tru Street Forged Piston Set Ford 351 4.040in Bore Flat Top -7cc
Wiseco PTS509A6 Pro Tru Street Forged Piston Set Chevy 350 4.060 Bore Reverse Dome -15cc
Wiseco PTS509A3 Pro Tru Street Forged Pistons Chevy 350 4.030" Bore Reverse Dome
Wiseco PTS508A6 Pro Tru Street Forged Pistons Chevy 350 4.060" Bore Reverse Dome
Wiseco Pistons K1606 Forged Piston Kit .010 Oversize for 1948-1980 Harley Big Twin
Wiseco Pistons K1609 Forged Piston Kit for Harley-Davidson Pan/Shovelhead 9:1 Compression
Wiseco Pistons WPP3005 High Performance Clutch Basket for Honda Dirt Bikes
Wiseco 6649M84 Honda B-Series 84mm Forged Piston -10cc Dish Shelf Stock
Wiseco 40038M10100 Forged Piston Kit 101.00mm Bore 8.4:1 Compression Sea-Doo Watercraft
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.