Wiseco 86-91 Kawasaki JS300 ProLite (549M07650) Piston Kit

Wiseco's legacy is rooted in 2-stroke piston manufacturing and performance, dating over 80 years ago back to 1941. Today, Wiseco 2-stroke pistons are the result of decades of experience, incorporating the latest in 2-stroke piston manufacturing and design to deliver the performance Wiseco built its name on.

Additional Information

Wiseco 2 Stroke Forged Series Piston Kit, 76.50 mm Bore

Part Type

Engine Piston Set

• 76.50 mm Bore
• Dedicated forgings and additional lightening operations allow for optimized strength-to-weight ratio
• Designed and built for each specific 2-stroke powersports engine
• Engineered, forged, and machined in the USA in Mentor, OH
• Improved tensile strength of forged material optimizes strength and service life
• Includes high-quality piston ring(s), wrist pin(s), and circlips

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Reference Information

Piston and Ring Kit, Forged Aluminum, 76.500mm Bore, Kawasaki, Kit

Wiseco powersports piston kits include your rings, piston pin, and circlips. These 2-stroke kits feature Pro-Lite pistons that are CNC-machined for optimal cam shape and profile, horsepower, and service life. Wiseco has a decade of experience producing quality pistons for dirt bikes, ATVs, snowmobiles, outboard marine engines, and motorcycles. Their piston kits offer strong, lightweight pistons with optimized designs to improve engine efficiency and maximize your torque and throttle response. Plus, Wiseco powersports piston kits are produced right here in the USA. It's time to blaze your own trail with Wiseco powersports piston kits.