3 Namura .020 Over Bore Piston Kits for Kawasaki STX 1100 DI 2000-2003 80.5mm

3 .020 Over Bore Piston Kits for Kawasaki STX 1100 DI

These .020 over bore piston kits provide a direct replacement for Kawasaki STX 1100 DI personal watercraft engines from 2000 to 2003, accommodating a slightly enlarged cylinder bore.

Overview

This set of three .020 oversize piston kits is designed for Kawasaki STX 1100 DI models requiring a 80.5mm bore. Each kit includes pistons, rings, wrist pins, and circlips, ideal for engine rebuilds after cylinder boring.

Built For Performance

• Machined from high-strength aluminum alloy to handle high compression loads
• Oversized to 80.5mm for precise fit in bored cylinders
• Includes premium piston rings for reliable compression and oil control
• Supplied with hardened wrist pins and wire circlips for secure installation
• Designed for the specific port timing of the STX 1100 DI engine

Fits These Machines

• for Kawasaki STX 1100 DI 2000-2003

On-The-Job Use

• Engine rebuilding after cylinder boring for performance restoration
• Restoring compression in high-mileage two-stroke watercraft
• Replacing pistons during a complete top-end overhaul
• Supporting full engine rebuilds for Kawasaki STX 1100 DI

Specs At A Glance

Good To Know

Q: Are the piston rings included with these kits? A: Yes, each kit comes with rings, wrist pins, and circlips for a complete installation.

Q: What is the difference between .020 over and standard bore? A: .020 over pistons are used when the cylinder has been bored to a larger diameter to remove wear or scoring; standard bore is for unmodified cylinders.

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