749M08050 Wiseco Piston Kit for Kawasaki Ultra 150 JH1200 1999-2005 .020 80.50mm

Piston Kit for Kawasaki JH1200 Ultra 150

Wiseco .020 Piston Kit for Kawasaki JH1200 Ultra 150, 1999-2005, part 749M08050, with an 80.50mm bore, gives your jet ski engine a fresh top end.

Overview

This Wiseco .020 Piston Kit for Kawasaki JH1200 Ultra 150 revives tired marine engines with a precision oversize piston. The 80.50mm bore piston kit for Kawasaki JH1200 Ultra 150 delivers reliable compression for riders who demand consistent power on the water. Each piston kit for Kawasaki JH1200 Ultra 150 is engineered for the demands of high-output personal watercraft use.

Built For Performance

• Wiseco forged piston construction for strength under high RPM
• 80.50mm bore diameter for .020 oversize rebuilds
• Part number 749M08050 stamped for direct cross-reference
• Ring set and pin included for a complete top-end refresh
• Designed for marine two-stroke heat cycles

Fits These Machines

• for Kawasaki JH1200 Ultra 150 1999
• for Kawasaki JH1200 Ultra 150 2000
• for Kawasaki JH1200 Ultra 150 2001
• for Kawasaki JH1200 Ultra 150 2002
• for Kawasaki JH1200 Ultra 150 2003
• for Kawasaki JH1200 Ultra 150 2004
• for Kawasaki JH1200 Ultra 150 2005

On-The-Job Use

• Top-end rebuilds on JH1200 Ultra 150 jet skis
• Bore-over service when cylinders are scored or worn
• Restoring compression on high-hour marine engines
• Race and recreational PWC engine refreshes

Specs At A Glance

Good To Know

Q: What does .020 oversize mean for my engine? A: It means the piston is 0.020 inch larger than stock and requires the cylinder to be bored and honed to match the 80.50mm size.

Q: Can I install this without machine work? A: No, an oversize piston kit requires cylinder boring and honing to the correct clearance before assembly.

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