Wiseco Pistons 536M07300 Forged Piston Kit 73mm 2-Stroke ATV .040 Oversize

The Wiseco 536M07300 is a high-performance forged piston kit designed for 250cc 2-stroke Polaris ATVs. This kit features a .040 inch (1.00mm) oversize bore of 73.00mm with a 60mm stroke, providing a precision replacement solution for rebuilding worn cylinders.

Complete Piston Kit Includes:

• Forged aluminum piston with optimized skirt design
• High-performance ring set with titanium nitride coating
• Alloy wrist pin for extended durability
• Circlips for secure installation

Premium Forged Construction:

• Manufactured from aerospace-grade high-silicon aluminum alloy using dedicated forging process
• Superior strength-to-weight ratio compared to cast pistons
• Aligned grain structure provides enhanced impact and fatigue resistance
• E-coated crown, ring grooves, and pin bore for maximum wear protection
• Resistant to micro-welding, galling, and detonation

Performance Benefits:

• Innovative forging design maximizes horsepower and torque output
• Optimized compression ratios for improved engine efficiency
• Ultra-stiff strutted forging maintains dimensional stability under high loads
• Designed using advanced 3D modeling and finite element analysis

Wiseco has over 80 years of experience producing race-proven pistons, with all components forged and machined in the USA. This piston kit is engineered to withstand extreme racing conditions and deliver sustained performance in demanding powersports applications.

Note: Cylinder sleeve must be bored to 73.00mm to accommodate this oversize piston. Only Wiseco replacement ring sets should be used with Wiseco pistons.