659M07450 Wiseco Piston Kit .060 for Kawasaki JT900 900STX 1997-2006 74.50 mm

Piston Kit for Kawasaki

This Wiseco .060 piston kit for Kawasaki fits the JT900 900STX and carries reference 659M07450 at 74.50 mm bore size.

Overview

This Wiseco piston kit for Kawasaki is a .060 oversize replacement built for the JT900 900STX personal watercraft made from 1997 to 2006. The kit restores compression and cylinder sealing on a rebored engine, giving the top end a reliable refresh. It suits mechanics and PWC owners who need a dependable oversize piston kit for Kawasaki watercraft.

Built For Performance

• Wiseco forged piston construction for durability at high rpm
• .060 oversize diameter of 74.50 mm to match a rebored cylinder
• Reference number 659M07450 for easy parts lookup
• Designed for the JT900 900STX engine platform
• Kit format supports a complete top end rebuild

Fits These Machines

• for Kawasaki JT900 900STX 1997-2006

On-The-Job Use

• Top end rebuilds on personal watercraft
• Rebored cylinder replacement after wear or scoring
• Marine engine service and performance refresh
• Shop rebuilds where oversize pistons are specified

Specs At A Glance

Good To Know

Q: Does this kit fit a stock cylinder? A: No, this is a .060 oversize kit and requires the cylinder to be bored to 74.50 mm. Confirm your machine's current bore size before ordering.

Q: What is included in the kit? A: This listing references piston kit 659M07450. Verify the contents match your rebuild plan and order the quantity your engine needs.

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