Namura Standard Bore Piston Kit Size B 66.35mm for Honda CR250R 2002-2004 66.4mm

Standard Bore Piston Kit Size B 66.35mm for Honda CR250R 2002-2004

This standard bore piston kit, precision-machined to 66.35mm (Size B), is a direct replacement for the 2002-2004 Honda CR250R engine, delivering reliable compression and performance.

Overview

This standard bore piston kit for Honda CR250R models from 2002 to 2004 restores top-end power and efficiency. Designed as a size B 66.35mm piston, it matches the factory bore specification and includes rings, pin, and clips for a complete rebuild. Ideal for riders maintaining their CR250R with a quality standard bore piston kit.

Built For Performance

• Precision-machined 66.35mm piston for accurate fit
• High-strength aluminum alloy for durability under high RPM
• Includes piston rings, wrist pin, and circlips
• Designed to OEM specifications for direct installation
• Reduces blow-by and improves compression

Fits These Machines

• for Honda CR250R 2002
• for Honda CR250R 2003
• for Honda CR250R 2004

On-The-Job Use

• Top-end rebuild for motocross and off-road riding
• Restoring engine compression for racing or trail riding
• Replacing worn original pistons during routine maintenance
• Ensuring consistent power delivery in competitive settings

Specs At A Glance

Good To Know

Q: Is this piston kit compatible with a 2002 CR250R? A: Yes, it is designed specifically for Honda CR250R models from 2002 through 2004, including the 2002 model.

Q: Does the kit include everything needed for installation? A: The kit includes the piston, rings, wrist pin, and circlips. You will need to reuse your existing cylinder and head gaskets.

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