Wiseco K110 Forged Piston Kit +2.5mm Oversize 73.50mm Bore for Kawasaki H2 750 Mach IV

The Wiseco K110 is a complete forged piston kit designed as a +2.5mm oversize solution with a 73.50mm bore diameter for the Kawasaki H2 750 Mach IV. This three-cylinder kit includes everything needed to restore or rebuild the top end of a classic Kawasaki triple, making it an ideal choice for restoration, performance rebuilds, and engine reconditioning projects.

Each piston in this kit is forged from high-silicon, low-expansion aluminum alloy, delivering superior tensile strength, reduced weight, improved heat transfer, and extended service life compared to cast alternatives. Wiseco's precision CNC diamond-turned finish ensures tight dimensional tolerances with no size variation, and these pistons are compatible with cast iron, chrome, Nikasil, and boron composite cylinder bore compositions.

Kit Contents (per piston — 3 sets total):

• Piston: #423M07350
• Ring Set: #2894CD
• Wrist Pin: #S259
• Circlip: #CW16

Key Specifications:

• Oversize: +2.5mm
• Bore Diameter: 73.50mm
• Piston Diameter: 73.42mm
• Finish: Uncoated
• Material: Forged high-silicon aluminum alloy
• Manufactured in the USA

Wiseco's wide range of oversize piston options helps extend the life of worn cylinders. For chrome, Nikasil, or boron composite bores, replacement cylinder sleeves are available to allow acceptance of oversize pistons like this kit. Note: Small end / wrist pin needle bearings are sold separately and will be required during installation.