719M05400 Wiseco Std Piston Kit for Kawasaki KX125 1998 54.00 mm

Wiseco Std Piston Kit for Kawasaki KX125

This standard bore piston kit for Kawasaki KX125 brings the top end back to stock specification, with the 719M05400 kit running a 54.00 mm bore.

Overview

This Wiseco Std piston kit for Kawasaki KX125 is a top-end replacement that restores stock compression in the 1998 KX125 engine. The 54.00 mm bore matches the original cylinder size, so no overboring is needed when the cylinder is still within spec. It suits riders and mechanics doing a routine top-end rebuild on a 1998 KX125.

Built For Performance

• Forged piston construction for two-stroke top-end duty
• Standard bore size at 54.00 mm for stock cylinders
• Kit includes piston, rings, wrist pin, and circlips
• Wiseco part number 719M05400 for positive identification
• Designed for the 1998 Kawasaki KX125 engine platform
• Machined ring grooves for consistent ring seal

Fits These Machines

• for Kawasaki KX125 1998

On-The-Job Use

• Routine top-end rebuild at stock bore size
• Replacement after normal piston and ring wear
• Motocross and off-road engine service
• Race prep and scheduled top-end maintenance

Specs At A Glance

Good To Know

Q: Can this piston be used in a worn cylinder? A: It is a standard bore piston, so the cylinder should be measured and honed to spec before installation for proper clearance.

Q: What is included with the piston kit? A: Kits of this type typically ship with the piston, rings, wrist pin, and circlips for a complete top-end install.

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