809M08100 Wiseco .040 Piston for Kawasaki JT1100 1100STX 1997-1999 81.00 mm

Wiseco .040 Piston for Kawasaki JT1100 1100STX

This .040 overbore piston for Kawasaki JT1100 1100STX watercraft measures 81.00 mm and is manufactured by Wiseco under part number 809M08100 for rebuilt cylinders.

Overview

This Wiseco .040 Piston is an overbore replacement piston for the Kawasaki JT1100 1100STX, sized at 81.00 mm to fit cylinders bored .040 over stock. The piston for Kawasaki JT1100 1100STX applications suits engines that need a fresh bore after cylinder wear or damage. Riders and shops rebuilding a 1100STX top end with a machined cylinder will find this piston matches the enlarged bore dimension.

Built For Performance

• .040 inch overbore size at 81.00 mm for machined cylinders
• Wiseco part number 809M08100 for precise identification
• Manufactured for two-stroke marine engine duty
• Designed for use in Kawasaki JT1100 1100STX applications
• Suits top-end rebuilds where the cylinder has been bored oversize

Fits These Machines

• for Kawasaki JT1100 1100STX (1997-1999)

On-The-Job Use

• Top-end rebuilds on 1997-1999 JT1100 1100STX watercraft
• Cylinders that have been bored .040 over stock
• Replacing a worn or damaged piston after cylinder machining
• Engine refresh work requiring an oversize piston

Specs At A Glance

Good To Know

Q: Will this piston fit a stock cylinder? A: No, this .040 oversize piston requires the cylinder to be bored and honed to 81.00 mm before installation.

Q: Does the cylinder need machining before I install this piston? A: Yes, a machine shop should bore and hone the cylinder to match the 81.00 mm piston size for proper clearance.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.