Wiseco 81.50 mm PK1650 Forged Piston Kit for Polaris 350 Trail Boss

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 2 Stroke Forged Series Piston Kit, 81.50 mm Bore

• Dedicated forgings and additional lightening operations allow for optimized strength-to-weight ratio
• Improved tensile strength of forged material optimizes strength and service life
• Designed and built for each specific 2-stroke powersports engine
• Includes high-quality piston ring(s), wrist pin(s), and circlips
• Engineered, forged, and machined in the USA in Mentor, OH

The Wiseco PK1650 Forged Series Piston Kit is designed for select 2-stroke Polaris Trail Boss 350L engines. Featuring a dedicated forging and additional lightening operations, the piston is built for an optimized strength-to-weight ratio. The forged material provides improved tensile strength to support service life in powersports applications.

This 81.50 mm bore piston kit is designed specifically for 2-stroke powersports engines and includes high-quality piston ring(s), wrist pin(s), and circlips. The piston is engineered, forged, and machined in the USA in Mentor, Ohio. The product is manufactured by Wiseco and carries vendor part number PK1650.

Fitment includes the 1990–1993 Polaris Trail Boss 350L 2X4 and 4X4. Verify the model year, engine configuration, bore size, and application before ordering.

Features:

• Forged piston kit with an 81.50 mm bore
• Dedicated forging and additional lightening operations optimize the strength-to-weight ratio
• Improved tensile strength of forged material supports service life
• Designed and built for specific 2-stroke powersports engines
• Includes high-quality piston ring(s), wrist pin(s), and circlips
• Engineered, forged, and machined in the USA in Mentor, Ohio
• Fits 1990–1993 Polaris Trail Boss 350L 2X4 and 4X4 models
• Manufacturer part number: PK1650

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: powersports
Epa: N/A
Clearance Item: t
Regular Stock: false
Units Per Sku: 1
Fitment:
1990 Polaris Trail Boss 350L 2X4 Base
1990 Polaris Trail Boss 350L 4X4 Base
1991 Polaris Trail Boss 350L 2X4 Base
1991 Polaris Trail Boss 350L 4X4 Base
1992 Polaris Trail Boss 350L 2X4 Base
1992 Polaris Trail Boss 350L 4X4 Base
1993 Polaris Trail Boss 350L 2X4 Base
1993 Polaris Trail Boss 350L 4X4 Base