Wiseco 85-93 Yamaha FJ11/FJ12 High Compression Piston Kit

The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco's forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you're looking for.

Additional Information

Wiseco 4 Stroke Forged Series Piston, 3.053 in. Bore

Part Type

Engine Piston Set

• 3.053 in. Bore
• Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation
• Dedicated forgings allow for optimized strength-to-weight ratio
• Designed and built for each specific 4-stroke powersports engine
• Engineered, forged, and machined in the USA in Mentor, OH
• Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions
• Improved tensile strength of forged material optimizes strength and service life
• Includes high-quality piston rings, wrist pin(s), and circlips
• Performance-Enhancing Features: Varied across applications to maximize both durability and power

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 Kits, Powersports 4-Stroke Forged Series, Dome, Forged Aluminum, 3.053 in. Bore, Yamaha, Kit

Wiseco powersports 4-stroke forged series piston kits include your rings, piston pin, and circlips. Wiseco has a decade of experience producing quality pistons for dirt bikes, motorcycles, ATVs, snowmobiles, and outboard marine engines. Their piston kits provide strong, lightweight pistons with optimized designs that 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 these Wiseco powersports piston kits! Order the piston kit designed to fit your application.