4 Namura Standard Bore Size C Piston Kits for Kawasaki STX15F SX-R Ultra LX 83mm

4 Namura Standard Bore Size C Piston Kits for Kawasaki STX15F SX-R Ultra LX 83mm

This set of four Namura standard bore size C piston kits offers a direct replacement for Kawasaki STX15F, SX-R, and Ultra LX models, delivering a precise 83mm bore for reliable engine restoration.

Overview

These four Namura standard bore size C piston kits are engineered for Kawasaki STX15F, SX-R, and Ultra LX personal watercraft and stand-up jet skis. Each kit contains a piston, rings, and wrist pin, designed for 83mm bore applications. They provide dependable performance for high-output engines.

Built For Performance

• High-strength aluminum alloy construction
• Includes piston rings and wrist pin for a complete rebuild
• Standard bore size C for accurate 83mm fitment
• Engineered for high-rpm watercraft engines
• Direct fit replacement for worn OEM pistons

Fits These Machines

• for Kawasaki STX15F
• for Kawasaki SX-R
• for Kawasaki Ultra LX

On-The-Job Use

• Top-end engine rebuilds for jet skis
• Restoring lost compression in high-hour engines
• Replacing damaged pistons from overheating or wear
• Performance refresh for recreational watercraft

Specs At A Glance

Good To Know

Q: Are these pistons pre-assembled? A: Each kit includes piston, rings, and wrist pin; rings need to be installed with proper gap orientation.

Q: What is the difference between standard bore size B and C? A: Size C is slightly larger than B within the same 83mm bore class; measure your cylinder to ensure correct selection.

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