659M07400 Wiseco .040 Piston Kit for Kawasaki JH900 900ZXi 1995-1997 74.00 mm

Piston Kit for Kawasaki JH900 900ZXi

This Wiseco .040 oversize piston kit with part number 659M07400 is a 74.00 mm bore piston assembly built to restore compression and reliability in 1995 to 1997 Kawasaki JH900 900ZXi personal watercraft engines.

Overview

This Wiseco piston kit for Kawasaki JH900 900ZXi models provides a .040 inch oversize replacement piston at 74.00 mm bore for engines showing wear or low compression. The piston kit for Kawasaki JH900 900ZXi is aimed at rebuilders and riders who want a durable top-end solution on 1995 through 1997 machines. It pairs a proven forged piston design with the parts needed to complete a top-end refresh.

Built For Performance

• Wiseco forged piston construction for strength under load
• .040 inch oversize bore at 74.00 mm to clean up worn cylinders
• Part number 659M07400 for easy reference
• Built for the Kawasaki JH900 900ZXi engine platform
• Kit includes piston, rings, wrist pin, and circlips
• Precision machining for consistent sealing and fit

Fits These Machines

• for Kawasaki JH900 900ZXi (1995-1997)

On-The-Job Use

• Top-end rebuilds on three-seat personal watercraft
• Restoring compression on high-hour 900ZXi engines
• Boring a scored cylinder to the next oversize
• Recreational lake and coastal riding
• Keeping older Kawasaki watercraft on the water

Specs At A Glance

Good To Know

Q: Does this piston drop into a stock cylinder? A: No, a .040 oversize piston requires the cylinder to be bored and honed to 74.00 mm for the correct clearance. Have a machinist check wall thickness before boring.

Q: What else should I replace during the rebuild? A: Along with the piston kit, inspect the cylinder head, bearings, and gaskets for wear. Replacing worn components at the same time helps prevent a repeat teardown.

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