Piston Sets - Powersports

Premium materials produce the best sealing technology available exceeding O.E.M. standards. 2-Stroke: Wiseco top end gasket kit; Dedicated forging; Superior strength/weight ratio utilizing Aerospace alloy; Race-proven designs; Chosen by top race teams, in all forms of racing; CNC machined; Optimal cam shape and profile for peak HP and service life; Premium top end needle bearing; Precision-machined, highest-quality materials for strength and reduced friction; High-performance ring set; Extended life and sustained power; Highest-quality alloy pin; Consistently true and durable. 4-Stroke: Wiseco top end gasket kit; Premium materials produce the best sealing technology available, exceeding O.E.M. standards; Dedicated forging; Superior strength/weight ratio utilizing Aerospace alloy; Dome design; Improved flame travel; Chrome plated piston pin; Horizontal slot pin oiling; Reduced friction/scuff resistant; Pressure seal groove; Maximum ring seal; Armor Glide Skirt-Coated available for select models; Dedicated Rings; Maximum compression and oil control.
Wiseco 4 Stroke Forged Series Piston Kit, 84.00 mm Bore, 8.6:1 CR

• Improved tensile strength of forged material optimizes strength and service life
• Designed and built for each specific 4-stroke powersports engine
• Dedicated forgings allow for optimized strength-to-weight ratio
• Includes high-quality piston rings, wrist pin(s), and circlips
• Engineered, forged, and machined in the USA in Mentor, OH

The Pro-Lite series is Wiseco’s staple forged 2-stroke piston, offering great value for reliable all-purpose riding. These pistons are designed for both track and trail, providing refreshed performance with every ride. Pro-Lite pistons feature optimized forging for strength and extra lightning operations for enhanced throttle response. This all-purpose piston is perfect for riders seeking a balance of performance and reliability.
Wiseco 2 Stroke Pro-Lite Piston Kit, 66.40 mm Bore

• Dedicated forging design for strength-to-weight optimization
• Extra lightening operations for enhanced throttle response
• Engineered, forged, and machined in the USA in Mentor, OH
• High-quality ring(s), wrist pin(s), and circlips included
• Refreshed performance from the track to the trail
• Designed for all-purpose 2-stroke riding
• Great value for reliable fun factor
• 66.40 mm Bore

Premium materials produce the best sealing technology available exceeding O.E.M. standards. 2-Stroke: Wiseco top end gasket kit; Dedicated forging; Superior strength/weight ratio utilizing Aerospace alloy; Race-proven designs; Chosen by top race teams, in all forms of racing; CNC machined; Optimal cam shape and profile for peak HP and service life; Premium top end needle bearing; Precision-machined, highest-quality materials for strength and reduced friction; High-performance ring set; Extended life and sustained power; Highest-quality alloy pin; Consistently true and durable. 4-Stroke: Wiseco top end gasket kit; Premium materials produce the best sealing technology available, exceeding O.E.M. standards; Dedicated forging; Superior strength/weight ratio utilizing Aerospace alloy; Dome design; Improved flame travel; Chrome plated piston pin; Horizontal slot pin oiling; Reduced friction/scuff resistant; Pressure seal groove; Maximum ring seal; Armor Glide Skirt-Coated available for select models; Dedicated Rings; Maximum compression and oil control.
Wiseco 4 Stroke Forged Series Piston Kit, 91.00 mm Bore, 9.5:1 CR

• Improved tensile strength of forged material optimizes strength and service life
• Designed and built for each specific 4-stroke powersports engine
• Dedicated forgings allow for optimized strength-to-weight ratio
• Includes high-quality piston rings, wrist pin(s), and circlips
• Engineered, forged, and machined in the USA in Mentor, OH

Wiseco Black Edition pistons are designed and built to be the ultimate in piston performance and durability for Harley-Davidson engines. Introducing proprietary, industry first coatings, Black Edition pistons perform as good as they look. Wiseco’s ArmorX coating protects critical areas of the piston for miles and miles of riding, while ArmorFit skirt coating helps reduce engine noise and friction. Equip your performance Harley build with the American-made pistons it deserves.
Wiseco Black Edition V-Twin. Piston Kit, 4.060 in. Bore, 11:1 CR

• ArmorFit skirt coating allows forged piston to be installed at tighter clearance, conforming to the cylinder bore through normal operation for ideal performance with less guesswork
• ArmorX coating applied to piston crown, ring grooves, and pin bore through proprietary electrochemical process and materials
• Greatly increased resistance to wear and damage caused by heat and detonation plus resists ring microwelding
• Various compression ratios and bore sizes available off the shelf to fit specific builds
• Ideal for high-performance environments – from natural aspiration to power adders
• Remains durable in high load, high cylinder pressure, high heat environments
• Engineered, forged, and machined in the USA in Mentor, OH
• Kits include ring packs, wrist pins, and circlips

Wiseco Black Edition pistons are designed and built to be the ultimate in piston performance and durability for Harley-Davidson engines. Introducing proprietary, industry first coatings, Black Edition pistons perform as good as they look. Wiseco’s ArmorX coating protects critical areas of the piston for miles and miles of riding, while ArmorFit skirt coating helps reduce engine noise and friction. Equip your performance Harley build with the American-made pistons it deserves.
Wiseco Black Edition V-Twin. Piston Kit, 4.125 in. Bore, 11:1 CR

• ArmorFit skirt coating allows forged piston to be installed at tighter clearance, conforming to the cylinder bore through normal operation for ideal performance with less guesswork
• ArmorX coating applied to piston crown, ring grooves, and pin bore through proprietary electrochemical process and materials
• Greatly increased resistance to wear and damage caused by heat and detonation plus resists ring microwelding
• Various compression ratios and bore sizes available off the shelf to fit specific builds
• Ideal for high-performance environments – from natural aspiration to power adders
• Remains durable in high load, high cylinder pressure, high heat environments
• Engineered, forged, and machined in the USA in Mentor, OH
• Kits include ring packs, wrist pins, and circlips

Wiseco Black Edition pistons are designed and built to be the ultimate in piston performance and durability for Harley-Davidson engines. Introducing proprietary, industry first coatings, Black Edition pistons perform as good as they look. Wiseco’s ArmorX coating protects critical areas of the piston for miles and miles of riding, while ArmorFit skirt coating helps reduce engine noise and friction. Equip your performance Harley build with the American-made pistons it deserves.
Wiseco Black Edition V-Twin. Piston Kit, 4.250 in. Bore, 11:1 CR

• ArmorFit skirt coating allows forged piston to be installed at tighter clearance, conforming to the cylinder bore through normal operation for ideal performance with less guesswork
• ArmorFit skirt coating allows forged piston to be installed at tighter clearance, conforming to the cylinder bore through normal
• ArmorX coating applied to piston crown, ring grooves, and pin bore through proprietary electrochemical process and materials
• Greatly increased resistance to wear and damage caused by heat and detonation plus resists ring microwelding
• Various compression ratios and bore sizes available off the shelf to fit specific builds
• Ideal for high-performance environments – from natural aspiration to power adders
• Remains durable in high load, high cylinder pressure, high heat environments
• Engineered, forged, and machined in the USA in Mentor, OH
• Kits include ring packs, wrist pins, and circlips
• 4.250 in. Bore, 11:1 CR

The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco’s forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you’re looking for.
Wiseco 4 Stroke Forged Series Piston Kit, 59.00 mm Bore, 10:1 CR

• Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation
• Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions
• Performance-Enhancing Features: Varied across applications to maximize both durability and power
• Improved tensile strength of forged material optimizes strength and service life
• Designed and built for each specific 4-stroke powersports engine
• Dedicated forgings allow for optimized strength-to-weight ratio
• Includes high-quality piston rings, wrist pin(s), and circlips
• Engineered, forged, and machined in the USA in Mentor, OH
• 59.00 mm Bore, 10:1 CR

The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco’s forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you’re looking for.
Wiseco 4 Stroke Forged Series Piston Kit, 96.00 mm Bore, 12:1 CR

• Improved tensile strength of forged material optimizes strength and service life
• Designed and built for each specific 4-stroke powersports engine
• Dedicated forgings allow for optimized strength-to-weight ratio
• Includes high-quality piston rings, wrist pin(s), and circlips
• Engineered, forged, and machined in the USA in Mentor, OH
• 96.00 mm Bore, 12:1 CR

The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco’s forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you’re looking for.
Wiseco 4 Stroke Forged Series Piston Kit, 85.00 mm Bore, 10:1 CR

• Improved tensile strength of forged material optimizes strength and service life
• Designed and built for each specific 4-stroke powersports engine
• Dedicated forgings allow for optimized strength-to-weight ratio
• Includes high-quality piston rings, wrist pin(s), and circlips
• Engineered, forged, and machined in the USA in Mentor, OH
• 85.00 mm Bore, 10:1 CR

The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco’s forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you’re looking for.
Wiseco 4 Stroke Forged Series Piston Kit, 88.00 mm Bore, 10:1 CR

• Improved tensile strength of forged material optimizes strength and service life
• Designed and built for each specific 4-stroke powersports engine
• Dedicated forgings allow for optimized strength-to-weight ratio
• Includes high-quality piston rings, wrist pin(s), and circlips
• Engineered, forged, and machined in the USA in Mentor, OH

The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco’s forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you’re looking for.
96.00 mm Bore – 13:1 CR

• Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation
• Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions
• Performance-Enhancing Features: Varied across applications to maximize both durability and power
• Improved tensile strength of forged material optimizes strength and service life
• Designed and built for each specific 4-stroke powersports engine
• Dedicated forgings allow for optimized strength-to-weight ratio
• Includes high-quality piston rings, wrist pin(s), and circlips
• Engineered, forged, and machined in the USA in Mentor, OH
• 96.00 mm Bore, 13:1 CR

The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco’s forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you’re looking for.
102.00 mm Bore – 11:1 CR

• Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation
• Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions
• Performance-Enhancing Features: Varied across applications to maximize both durability and power
• Improved tensile strength of forged material optimizes strength and service life
• Designed and built for each specific 4-stroke powersports engine
• Dedicated forgings allow for optimized strength-to-weight ratio
• Includes high-quality piston rings, wrist pin(s), and circlips
• Engineered, forged, and machined in the USA in Mentor, OH
• 102.00 mm Bore, 11:1 CR