Wiseco 4840M04700 Standard Dirt Bike Piston Kit for Yamaha

WISECO ATV-DIRT BIKE PISTONS.
*  All Wiseco 4 cycle pistons come complete with rings, wrist pins and circlips.
*  Only Wiseco replacement ring sets can be used on Wiseco pistons.
*  All Wiseco 2 cycle pistons are supplied with rings and circlips.
*  Wiseco 2 cycle pistons are not supplied with a wrist pin unless noted in the description.

The Wiseco 4840M04700 is a standard-size dirt bike piston kit designed for compatible Yamaha motorcycle applications. Built for riders, technicians, and powersports enthusiasts who need a dependable replacement piston, this kit supports engine restoration and maintenance while helping preserve proper combustion performance.

Manufactured by Wiseco, a recognized name in high-performance powersports components, the 4840M04700 piston kit is intended for use in Yamaha dirt bike engines that specify a standard piston size. Verify motorcycle year, model, engine specifications, and manufacturer fitment information before ordering to ensure compatibility with your application. Professional installation is recommended, including inspection of the cylinder, piston clearance, rings, wrist pin, and related components.

This kit is supplied as a unit and is suitable for engine rebuilds, top-end service, and replacement of a worn or damaged piston. Using a properly matched standard piston can help support reliable operation and consistent performance when installed according to the engine manufacturer’s service procedures. Always follow the recommended break-in process and use compatible gaskets, lubricants, and installation components as required.

Features:

• Brand: Wiseco
• Part Number: 4840M04700
• Product Type: Standard dirt bike piston kit
• Application: Compatible Yamaha dirt bike engines
• Unit of Measure: Kit
• Service Use: Suitable for top-end repairs, engine rebuilds, and piston replacement
• Installation: Professional installation and fitment verification recommended