Wiseco 781M08200 Forged Piston Kit 82mm +1mm Oversize for Polaris SLTX 1050 PWC

The Wiseco 781M08200 is a forged piston kit designed for Polaris SLTX 1050 personal watercraft engines. Machined to an 82.00mm bore diameter (+1.00mm oversize) over the standard 81mm bore, this piston is engineered for engine rebuilds requiring a first oversize fit. The ring set part number is 8200LF.

Each kit includes one forged piston, piston pin, C-clips, and a matched piston ring set — everything needed for a single-cylinder rebuild. Order three kits for a complete 3-cylinder 1050cc engine rebuild.

Key Features:

• Forged high-silicon, low-expansion aluminum construction delivers superior tensile strength, reduced weight, improved heat transfer, and longer service life compared to cast pistons
• CNC diamond-turned finish ensures precise sizing with no variation, for a consistent fit across all cylinder bore types
• Compatible with cast iron, chrome, Nikasil, and boron composite cylinder bores — safe for use in all common PWC cylinder compositions
• 82.00mm bore (+1.00mm oversize) — engineered to restore performance in worn cylinders bored to first oversize
• Includes forged piston, wrist pin, C-clips, and piston ring set (8200LF)
• Manufactured by Wiseco in their state-of-the-art CNC facility using 3D design and finite element modeling

Wiseco is the only aftermarket piston manufacturer to forge their own pistons in-house, and their Classic Forged 2-stroke piston line is trusted by powersports enthusiasts for reliable, high-quality engine rebuilds. The 781M08200 is the direct oversize companion to the standard-bore 781M08100.