Wiseco 423M07250 72.50mm 2-Stroke Piston Kit +1.50mm Oversize for Kawasaki 750 H2 Mach IV

The Wiseco 423M07250 is a +1.50mm oversize forged piston kit with a 72.50mm bore, engineered for Kawasaki 750 H2 Mach IV and JS440 two-stroke engines. Ring set part number 2854CD is included. This kit is cataloged as Wiseco K108 and covers the 1972–1975 model years of the Kawasaki 750 triple.

Key Features:

• Forged from high-silicon, low-expansion aluminum alloy for superior strength, reduced weight, and improved heat transfer
• +1.50mm oversize bore at 72.50mm — ideal for cylinders requiring a first oversize re-bore
• Innovative piston skirt design maximizes horsepower and torque output
• CNC diamond-turned finish ensures precise sizing with no variation between pistons
• Engineered for two-stroke streetbike applications with demanding performance requirements
• Over 70 years of forged piston manufacturing expertise behind every Wiseco design

Kit Includes:

• Forged piston (single)
• Piston rings (2854CD)
• Wrist pin
• Circlips

Note: This is a single-cylinder piston kit. The Kawasaki 750 H2 Mach IV is a triple-cylinder engine — order three kits (K108) for a complete engine rebuild. Oversize pistons require professional cylinder boring to the specified diameter prior to installation.