Namura .020 Over Bore Piston Kit for Sea-Doo 1500 4-TEC non-SC 2002-2019 100.5mm

.020 Over Bore Piston Kit for Sea-Doo

This .020 over bore piston kit is a direct replacement for Sea-Doo 1500 4-TEC non-supercharged engines, featuring a 100.5mm bore to restore cylinder compression and improve engine performance.

Overview

The .020 over bore piston kit is designed for rebuilding Sea-Doo 1500 4-TEC non-SC engines from 2002 through 2019. It includes the piston, rings, and wrist pin for a complete top-end refresh. This kit is ideal for riders looking to restore lost power or upgrade during a rebuild.

Built For Performance

• 100.5mm bore diameter for .020 over stock sizing
• Designed for Sea-Doo 1500 4-TEC non-supercharged engines
• Includes piston, rings, and wrist pin for complete installation
• Precision-machined for consistent performance
• Restores compression and power output

Fits These Machines

• for Sea-Doo 1500 4-TEC non-SC (2002-2019)

On-The-Job Use

• Engine rebuilding for personal watercraft
• Restoring compression in high-mileage Sea-Doo engines
• Performance upgrade for naturally aspirated 4-TEC motors
• Overhauling top-end for improved reliability
• Replacing worn pistons during routine maintenance

Specs At A Glance

Good To Know

Q: Is this piston kit compatible with supercharged engines? A: No, it is designed for non-supercharged (non-SC) Sea-Doo 1500 4-TEC engines only.

Q: What does .020 over bore mean? A: It means the piston is 0.020 inches larger than standard, requiring cylinder boring to match.

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