Namura Standard Bore Cylinder for Kawasaki KLX400, KLX400R & KLX400SR 2003 90mm

Standard Bore Cylinder for Kawasaki KLX400, KLX400R & KLX400SR

This aftermarket standard bore cylinder fits Kawasaki KLX400, KLX400R, and KLX400SR models from 2003, providing a 90mm bore replacement to restore engine compression and performance.

Overview

The standard bore cylinder for Kawasaki KLX400 is a direct-fit replacement cylinder designed for the 2003 KLX400 series. This 90mm standard bore cylinder is precision-manufactured to match OEM specifications, making it an ideal choice for rebuilding a KLX400 engine. Whether for a top-end rebuild or replacing a worn cylinder, this standard bore cylinder ensures reliable operation.

Built For Performance

• Precision-machined 90mm bore for accurate fitment
• Constructed from high-grade cast iron for durability
• Directly replaces the original cylinder without modifications
• Includes a hardened cylinder sleeve for extended service
• Designed to work with standard piston and rings

Fits These Machines

• for Kawasaki KLX400 (2003)
• for Kawasaki KLX400R (2003)
• for Kawasaki KLX400SR (2003)

On-The-Job Use

• Ideal for top-end engine rebuilds on Kawasaki dirt bikes
• Replaces worn or damaged cylinders for improved compression
• Commonly used in trail riding and motocross applications
• Essential for restoring power in high-mileage KLX400 bikes

Specs At A Glance

Good To Know

Q: Will this cylinder fit my KLX400? A: This standard bore cylinder is designed for Kawasaki KLX400, KLX400R, and KLX400SR from 2003, but always confirm compatibility with your specific model and serial number.

Q: Do I need to replace the piston and rings? A: Yes, it is recommended to replace the piston and rings when installing a new cylinder to ensure proper break-in and performance.

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