Wiseco WK1211 88mm 2-Stroke Watercraft Complete Piston Kit Sea-Doo 951cc STD Bore

The Wiseco WK1211 is a complete forged piston kit engineered for 2-stroke personal watercraft engines. Designed for Sea-Doo 950 applications, this kit delivers a standard 88.00mm bore for a 951cc, twin-cylinder engine with a 78.20mm stroke. Every component needed for a full top-end rebuild is included, making this an ideal solution for engine rebuilds and performance restoration.

What's Included:

• Forged aluminum piston (88.00mm bore, STD)
• 3464KD semi-keystone ring set
• 21mm round wire pin locks / circlips (pair, CW21)
• Top-end gasket kit

Key Features:

• Forged High-Silicon Aluminum Construction: Manufactured from high-silicon, low-expansion aluminum alloy for superior strength, reduced weight, improved heat transfer, and extended service life
• CNC Diamond-Turned Finish: Precision-machined on CNC turning centers for consistent sizing and a perfect surface finish with no variation between pistons
• Universal Cylinder Compatibility: Engineered to install confidently in cast iron, chrome, Nikasil, and boron composite cylinder bore compositions
• Oversize Availability: Part of Wiseco's broad oversize piston lineup, allowing cast iron cylinder life extension and compatibility with resleeved chrome, Nikasil, and boron composite cylinders
• Race-Proven Design: Built to the same standards as Wiseco's competition pistons, providing performance and reliability for both recreational riders and demanding race applications

Wiseco has been producing forged pistons for over 80 years and is the only aftermarket piston manufacturer to forge its own pistons in-house. The WK1211 kit is designed and built specifically for its target 2-stroke watercraft application, ensuring precise fitment and optimal performance right out of the box.