Namura Standard Bore Size B Top End Kit for Kawasaki STX-15F fits 2004-2019 83mm

Standard Bore Size B Top End Kit for Namura

This standard bore size B top end kit delivers reliable engine restoration for Kawasaki STX-15F watercraft, featuring a precise 83mm bore dimension. It is a trusted aftermarket solution for 2004-2019 models.

Overview

The standard bore size B top end kit for Namura provides all necessary components to refresh cylinder performance on compatible Kawasaki engines. This 83mm top end kit is engineered to restore compression and power output for personal watercraft applications.

Built For Performance

• 83mm bore size matches standard factory specifications for consistent compression
• Includes piston, rings, wrist pin, and circlips for a complete top end overhaul
• Precision-machined for reliable sealing and long service life
• Heat-treated piston skirts reduce friction and wear
• Designed to meet OEM clearance tolerances for smooth operation

Fits These Machines

• for Kawasaki STX-15F (2004-2019)

On-The-Job Use

• Replacing worn top end components on personal watercraft engines
• Restoring engine performance after high-hour usage
• Performing scheduled maintenance on Kawasaki STX-15F models

Specs At A Glance

Good To Know

Q: Does this kit include a cylinder head gasket? A: No, this top end kit includes piston, rings, wrist pin, and circlips; additional gaskets should be purchased separately.

Q: Can this be used on engines that have been bored oversize? A: This kit is for standard bore size B at 83mm; it is not intended for oversize cylinders.

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