Whenever possible we use picture of the actual part number. Some items do use stock photos provided by the manufacturer.
Whether you’re increasing the bore of your engine for more power or if it’s just time for a rebuild and upgrade, this Platinum Series Overbore Piston Kit is what you want! These Platinum Series Overbore Piston Kits are high-quality and feature construction that meets or exceeds OEM specifications. Every kit is made of high-grade materials to ensure it can withstand whatever your ride puts you through. Platinum series pistons feature specially formulated non-abrasive skirt coatings and hardened tops for added horsepower and longevity. These kits contain one piston, a ring set, a wrist pin, and improved E-clips. Whether you’re looking for a more powerful ride, low-end torque, or even more top-end horsepower, these kits are what you need! This kit is for cylinders that have already been overbored. WILL NOT WORK WITH STOCK BORE CYLINDERS/SLEEVES.
With over four decades of experience, supplies to some of the best, well-known powersports industries internationally; selling products from categories ranging from electrical, engines, and frames to accessories and other rider supplies. provides exceptional quality products like Platinum Series Piston Kit 1mm Over 86.9mm Supercharged Yamaha WaveRunner, at reasonable prices.
This kit will only fit cylinders that are overbored to the bore size listed, standard bore pistons are available in another listing. Stock cylinders will need to be re-bored and re-plated to the appropriate size.
Made to exact OEM specifications
Platinum Series Pistons are made of high strength hardened aluminum designed to prevent skirt and ring groove breakage
The piston walls are treated with a nonabrasive coating which reduces heat and friction for added horsepower and greatly extends piston life
Images are for reference purposes only
Piston Size: 86.9mm +1
Piston Type: Cast
Includes Wrist Pin Bearing: Yes
Piston Over Bore Amount: 1mm
Piston Skirt Coated: MoS2 Skirt Coating
Oem Piston Bore Size: 85.9mm