Wiseco WK1319 2-Stroke Watercraft Complete Piston Kit with Top-End Gasket Kit

The Wiseco WK1319 is a complete 2-stroke personal watercraft piston kit that includes everything needed for a top-end rebuild: piston, rings, wrist pin, circlips, and top-end gasket kit. Engineered for powersports enthusiasts and performance riders alike, this kit delivers the strength, precision, and reliability Wiseco is known for across its entire line of forged powersports pistons.

Key Features:

• Forged high-silicon, low-expansion aluminum 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 zero variation from piston to piston, guaranteeing a perfect fit every time
• Compatible with all cylinder bore compositions including cast iron, chrome, Nikasil, and boron composite — no special preparation required
• Wide oversize availability helps extend the life of cast iron lined cylinders; chrome, Nikasil, and boron composite cylinders can be re-sleeved to accept Wiseco oversize pistons
• Complete kit includes piston, rings, wrist pin, and circlips for a straightforward top-end rebuild
• Manufactured in the USA at Wiseco's state-of-the-art facility, designed to meet the demands of both competitive racers and recreational riders

Wiseco is the only U.S. manufacturer that produces powersports pistons exclusively using the forging process, allowing full in-house control from raw material to finished part. In-house dyno testing and finite element modeling ensure each piston meets the rigorous standards of the motorsports industry.