Namura Standard Bore Top End Rebuild Kit Size C for Kawasaki KX250 2004 66.4mm

Standard Bore Top End Rebuild Kit for Kawasaki

This standard bore top end rebuild kit, sized at 66.4mm, is designed for the Kawasaki KX250 2004 model to restore cylinder compression and performance.

Overview

This top end rebuild kit from Namura provides all necessary components for a complete cylinder refresh on the Kawasaki KX250. It includes a piston, rings, wrist pin, circlips, and a top end gasket set, ensuring a reliable rebuild. Ideal for riders maintaining their 2004 KX250, this kit delivers OEM-spec performance without the OEM price.

Built For Performance

• Manufactured by Namura using high-strength aluminum alloy for durability
• Precision-machined piston with a 66.4mm bore size for exact fit
• Includes a complete gasket set to prevent leaks and ensure proper compression
• Features a high-quality wrist pin and circlips for secure assembly
• Rings are pre-gapped for quick installation and consistent sealing

Fits These Machines

• for Kawasaki KX250 2004

On-The-Job Use

• Used for top-end engine rebuilds on two-stroke motocross bikes
• Ideal for restoring lost power and compression in high-mileage engines
• Suitable for competitive racing and recreational trail riding
• Commonly installed during routine maintenance intervals

Specs At A Glance

Good To Know

Q: Does this kit include a cylinder? A: No, this is a top end rebuild kit that contains piston, rings, gaskets, and pins; the cylinder is reused or replaced separately.

Q: Is this kit compatible with other years of the KX250? A: This specific kit is designed for the 2004 Kawasaki KX250 with a 66.4mm bore; other model years may use different sizes, so verify your bike's specifications.

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