Wiseco Pistons
Wiseco SK1405 Standard Bore 82.00mm Top End Piston Kit Single Ring Ski-Doo 800R E-TEC
Wiseco 4574M07400 Forged Piston Kit Standard Bore 74mm 11:1 Compression ATV
Wiseco Pistons 4382M06700 Forged ATV Piston Kit 67.00mm Oversized 10.25:1 Compression
Wiseco 431M07000 Pro-Lite 2-Stroke Forged Piston Kit 70.00mm Standard Bore
Wiseco 4312M07050 Forged Piston Kit 70.50mm Bore .020 Over 10.25:1 CR ATV
Wiseco Pistons 338M07200 High-Performance Piston Kit for Honda 250 MT/CR/MR 1975-77
Wiseco Pistons 522M06600 High-Performance Piston Kit for Yamaha IT200N 1984-1986
Wiseco 4835M09600 Forged ATV Piston Yamaha 96.00mm +1.00mm Oversize
Wiseco 558M06800 Pro-Lite Forged Piston Kit 68mm Bore 1.00mm Oversize 2-Stroke Dirt Bike
Wiseco 4914M10483 Big Bore Forged Piston Kit 104.83mm 12.5:1 Compression 558cc ATV
Wiseco Pistons 4903M10200 High-Compression Piston Kit for Yamaha Raptor/Grizzly 700
Wiseco 4881M07700 Forged Piston Kit 77mm 13.5:1 Compression 250cc Dirt Bike
Wiseco 582M05600 Pro-Lite Piston Kit Standard Bore 56.00mm 2-Stroke Dirt Bike
Wiseco 4841M05000 Forged Piston Kit Yamaha YFM80 Badger Raptor Grizzly 50mm 11:1
Wiseco 553M05400 Pro-Lite Forged Piston Kit Standard Bore 54.00mm
Wiseco 539M04900 2-Stroke Off-Road Forged Piston Kit 49.95mm 1.00mm Oversize
Wiseco Pistons 841M05600 GP Style Piston Kit 2.00mm Oversize 56.00mm Honda Dirt Bike
Wiseco 859M05400 Pro-Lite Piston Kit 54.00mm Standard Bore Honda CR125R
Wiseco 723M06640 Pro-Lite 2-Stroke Dirt Bike Piston Kit Standard Bore 66.40mm
Wiseco PK1002 66.0mm Piston Kit Honda ATC 185 200 Top End Rebuild Kit
Wiseco K1039 Forged Piston Top End Kit 75.50mm Bore 11:1 CR Kawasaki GPz1000RX Ninja GTR1000
Wiseco CK177 Yamaha Road Star 4-Stroke Top End Piston Kit 95mm 10.5:1 Compression
Wiseco CK169 Forged Top End Piston Kit 67mm 12.4:1 Dome 4-Stroke
Wiseco CK165 Complete Top End Piston Kit 77mm 13:1 Compression 5-Valve Domed
Wiseco CK104 Top End Piston Kit CR Suzuki Hayabusa - 81mm 13 1 GSX1300R 1999-2006
Wiseco PK1146 1986-1991 Honda CR80 47.0mm Forged Piston Top End Kit
Wiseco PK1589 90mm Top-End Piston Kit 9.5:1 Compression Honda TRX450
Wiseco PK1190 Pro-Lite 2-Stroke Top End Piston Kit 50.5mm Bore for Kawasaki KX85
Wiseco Pistons PK1026 Top End Piston Kit for Honda TRX300EX 74.0mm
Wiseco PK1116 Top End Piston Kit Honda - 65.5mm 1980-1983 XR185 XR200
Wiseco PK1064 Top End Piston Kit 95.0mm 13:1 High Compression YFZ450
Wiseco Pistons PK1296 Pro-Lite Top End Piston Kit for Kawasaki - 1988-90 KX80 48.0mm
Wiseco PK1270 Pro-Lite Top End Kit 47.5mm Bore for Honda CR80R
Wiseco PK1439 Compression ATV Piston Kit with Top-End Gasket Kit - 68.5mm 10.5 1
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.