Wiseco 700M08150 Forged Piston Kit 81.50mm 0.50mm Oversize Polaris 700 2-Stroke PWC

The Wiseco 700M08150 is a forged 2-stroke piston kit designed for Polaris 700cc personal watercraft engines. This kit delivers a 0.50mm oversize bore of 81.50mm (standard bore: 81.00mm) for engines with a 68.00mm stroke and 710cc displacement across two cylinders. Every component needed for a complete piston service is included in the kit.

Kit Includes:

• Forged piston (81.50mm actual bore)
• 3209TD ring set (81.50mm)
• S512 piston pin — 20mm x 2.362 in.
• CW20 round wire pin locks, 20mm (pair)

Key Features:

• Forged high-silicon aluminum alloy construction delivers superior strength, reduced weight, improved heat transfer, and extended service life compared to cast alternatives
• CNC diamond-turned finish ensures precise sizing with no variation, allowing confident installation in cast iron, chrome, Nikasil, and boron composite cylinder bores
• Pro-Lite 2-stroke design is CNC machined for optimal cam shape and skirt profile, maximizing horsepower output and piston longevity
• 0.50mm oversize — cylinder sleeving required; compatible with resleeved chrome, Nikasil, and boron composite cylinders
• Non-chromed taper-wall (TW) piston design suitable for today's modern bore compositions

Wiseco piston kits are the trusted choice of both competitive racers and recreational powersports enthusiasts. WARNING (CA Prop 65): This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm. See P65Warnings.ca.gov for more information.