Wiseco Pistons
Wiseco Pistons 4933M07900 Forged Piston Kit for Honda TRX350ES 79.00mm Bore
Wiseco 4918PS Forged Piston Kit Harley-Davidson Twin Cam 103 10.5:1 4.000 In. Bore
Wiseco Pistons 4875M05400 Forged Piston Kit for Kawasaki KLX110
Wiseco Pistons 4983M08300 Big Bore Piston Kit Compression - 13.5 1 KX250F RMZ250F
Wiseco Pistons 702M06700 Forged Piston Kit for Honda CR250R 1997-2001
Wiseco Pistons 2677CS Single Ring Set 68.00mm Bore Chrome-Faced Compression Ring
Wiseco Pistons PK149 Piston Kit for Yamaha Banshee 64.5mm Long Rod
Wiseco Pistons 40066M10300 High-Performance Piston Kit 103.00mm 1.00mm Oversize
Wiseco 40061M06950 Piston Kit 69.50mm 1.00mm OS Honda TRX250
Wiseco 40078M07600 Forged Piston Kit Yamaha Raptor 250 YFM250R 13:1 CR
Wiseco Pistons 40045M09300 93.00mm 10.6:1 Compression ATV Piston Kit
Wiseco 40028M08300 Piston Kit for Can-Am 83mm Bore with Rings, Wrist Pin & Circlip
Wiseco Pistons 40093M09500 High-Performance Piston Kit for Polaris RZR XP 900 12.5:1 Compression
Wiseco 40091M09500 KTM 450 Forged Piston Kit 95mm Standard Bore 11.8:1 Compression
Wiseco Pistons 40075M10200 High-Performance Forged Engine Piston Kit
Wiseco Pistons 423M07150 Piston Kit 0.50mm Oversize 71.50mm Kawasaki 750 Mach 4/JS440
Wiseco Pistons 4156M06650 High-Performance Piston Kit 66.50mm
Wiseco Pistons 4045M08800 Performance Dirt Bike Piston Kit 88.00mm 1.00mm Oversize
Wiseco 40111M09700 Forged Piston Kit Yamaha YZ450F 12.5:1 Compression Ratio 97mm Bore
Wiseco Pistons 40110M09600 High-Performance Piston Kit Suzuki RMZ450 13:1 Compression
Wiseco Pistons 4670M06800 Forged Piston 68mm Kawasaki Bayou KLF220 1988-2003
Wiseco 4669M08700 Forged ATV Piston Kit 87mm Bore 8.2:1 Compression 404cc
Wiseco 4666M05400 Piston Kit 54mm Oversize 9.4:1 Compression Honda CRF100F XR100R
Wiseco Pistons 4849M09400 High Compression Piston Kit 94.00mm Bore 11.5:1 Honda ATV
Wiseco 4848M09600 Forged Piston Kit 96mm 2.00mm Oversize 10.5:1 Compression
Wiseco Pistons 4755M09600 High-Performance Domed Piston Kit for Honda CRF450R/X 12.5:1
Wiseco Pistons 4752M05500 Dirt Bike Piston 1.00mm Oversize
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.