607M06740 Wiseco Std Piston Kit 67.40 mm for Kawasaki KX250 1990-1991

Piston Kit for Kawasaki KX250

This Wiseco piston kit for Kawasaki KX250 offers a standard 67.40 mm bore size, providing the components needed for a factory-spec top-end rebuild.

Overview

The Wiseco standard piston kit is built for the Kawasaki KX250 spanning 1990-1991 model years. This piston kit maintains the factory 67.40 mm bore, making it suitable when the cylinder does not require oversizing. A solid choice for riders and mechanics rebuilding the top end of their Kawasaki KX250.

Built For Performance

• Standard 67.40 mm bore matching factory specification
• Wiseco forged piston construction for durability under high RPM
• Complete kit with piston, rings, wrist pin, and circlips
• Designed for the Kawasaki KX250 1990-1991 engine platform
• Precision machined for consistent fit and sealing

Fits These Machines

• for Kawasaki KX250 1990
• for Kawasaki KX250 1991

On-The-Job Use

• Top-end rebuilds on cylinders within factory spec
• Motocross and off-road riding
• Restoring older Kawasaki KX250 two-stroke engines
• Routine piston and ring replacement

Specs At A Glance

Good To Know

Q: Is this piston kit a standard size replacement? A: Yes, this kit keeps the factory 67.40 mm bore and suits cylinders that do not need oversizing, though bore condition should be verified first.

Q: What is included in this kit? A: This Wiseco piston kit typically includes the piston, rings, wrist pin, and circlips needed for a top-end rebuild.

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