Namura Standard Bore Size B Top End Rebuild Kit for KTM 250 EXC fits 2004 66.4mm

Namura Standard Bore Size B Top End Rebuild Kit for KTM

This Namura standard bore size B top end rebuild kit includes piston, rings, pin, and gaskets for rebuilding the top end of KTM 250 EXC engines with a 66.4mm bore.

Overview

This top end rebuild kit is designed for KTM 250 EXC motorcycles from 2004, featuring a standard bore size B and a 66.4mm piston. It provides all necessary components to rebuild the cylinder and restore engine performance, including a piston, rings, wrist pin, and gaskets. The top end rebuild kit is a cost-effective solution for refreshing worn top ends on KTM 250 EXC dirt bikes.

Built For Performance

• Includes forged piston for strength and durability
• Complete set: piston, rings, wrist pin, circlips, and gaskets
• Standard bore size B ensures proper fit for stock cylinders
• Manufactured to high-quality standards for reliable performance
• Direct replacement for worn top end components

Fits These Machines

• for KTM 250 EXC (2004)

On-The-Job Use

• Commonly used in enduro and off-road racing applications
• Ideal for rebuilding top ends on KTM 250 EXC dirt bikes
• Used by motorcycle mechanics and DIY riders for maintenance
• Essential for restoring compression and power after wear

Specs At A Glance

Good To Know

Q: Does this kit include a cylinder head gasket? A: Yes, the top end rebuild kit typically includes all necessary gaskets for the cylinder head and base.

Q: Is the piston pre-assembled with rings? A: The piston comes with rings installed, but you should check ring end gap for proper clearance before installation.

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