Wiseco PK1647 Polaris Trail Boss 350L Top End Piston Kit 80mm Standard Bore

The Wiseco PK1647 is a complete top end piston kit designed for the Polaris Trail Boss 350L ATV, featuring an 80.00mm standard bore and engineered specifically for the 2-stroke 352cc engine. This kit contains everything needed for a full top end rebuild or overbore service in a single package.

Kit Includes:

• High-performance forged piston (80.00mm / 639M bore)
• Piston ring set
• Wrist pin
• Circlips
• Top end gasket set

Key Features:

• USA-engineered and forged at Wiseco's facility in Mentor, OH
• Forged from high-silicon aluminum bar stock for greater strength and reduced thermal expansion at high temperatures
• Dedicated forgings with lightening operations provide an optimized strength-to-weight ratio
• Improved tensile strength of forged material maximizes service life under demanding conditions
• Engine-specific design — engineered to exact tolerances for the Polaris Trail Boss 350L 2-stroke engine
• Standard (STD) bore size: 80.00mm
• Displacement: 352cc

Important Note: Wiseco rings are specific to Wiseco pistons and are not interchangeable with other ring types. Always use Wiseco rings with Wiseco pistons.

Wiseco has been manufacturing 2-stroke pistons since 1941, making them a trusted name in powersports engine rebuilding. The PK1647 delivers the reliability and performance expected from an industry leader.