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

4 Namura Standard Bore Size B Piston Kits for Kawasaki

These four piston kits from Namura are standard bore size B at 83mm, designed to rebuild the engines of select Kawasaki personal watercraft models with reliable aftermarket performance.

Overview

This set of four Namura standard bore size B piston kits provides a direct replacement for the original pistons in Kawasaki STX15F, SX-R, and Ultra LX engines, restoring compression and power. Each piston measures 83mm and is manufactured to match OEM specifications for a dependable rebuild.

Built For Performance

• Manufactured by Namura as a direct aftermarket replacement
• Standard bore size B (83mm) for precise fit
• Includes all necessary components for one cylinder per kit
• Designed to match OEM piston weight and profile
• Heat-treated for durability under high engine temperatures

Fits These Machines

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

On-The-Job Use

• Rebuilding and overhauling Kawasaki PWC engines
• Restoring engine performance after wear or failure
• Used by mechanics and DIY enthusiasts for complete top-end rebuilds

Specs At A Glance

Good To Know

Q: Are these piston kits compatible with other Kawasaki models? A: These are specifically designed for Kawasaki STX15F, SX-R, and Ultra LX; other models may require different piston sizes or types.

Q: Do I need to replace piston rings separately? A: Each kit includes all components for one piston, so rings should be included; always confirm with the manufacturer if additional items are needed.

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