Namura .020 Over Bore Top End Kit for Sea-Doo 580 for 1990-1996 76.5mm SEE LIST

Namura .020 Over Bore Top End Kit for Sea-Doo

This top end kit provides all necessary components for rebuilding the cylinder and piston assembly on Sea-Doo 580 personal watercraft engines.

Overview

The Namura .020 over bore top end kit is designed to restore engine performance on Sea-Doo 580 models from 1990 to 1996. This kit includes a piston, rings, wrist pin, and gaskets for a complete top end rebuild. It is an ideal choice for maintaining or upgrading your watercraft's power output.

Built For Performance

• Precision-machined piston for consistent fit and compression
• High-quality rings provide reliable sealing
• Durable wrist pin and circlips included
• Complete gasket set for a thorough rebuild
• Oversize bore allows refreshing worn cylinders
• Proven Namura quality for marine applications

Fits These Machines

• for Sea-Doo 580 (1990-1996)

On-The-Job Use

• Rebuilding engines with excessive cylinder wear
• Restoring lost compression and engine power
• Replacing worn or seized top end assemblies
• Performing preventive maintenance on high-hour watercraft

Specs At A Glance

Good To Know

Q: Can this kit be used with stock cylinder? A: This kit requires machining the cylinder to 76.5mm bore, so it is not a direct drop-in.

Q: Is the piston included? A: Yes, the kit includes a forged piston, rings, wrist pin, and all necessary gaskets.

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