Namura Standard Bore Piston Kit Size A for Kawasaki KX250 fits 1992-2004 66.4mm

Namura Standard Bore Piston Kit Size A for Kawasaki KX250

The Namura Standard Bore Piston Kit Size A delivers a direct replacement piston for Kawasaki KX250 models from 1992 to 2004. This piston kit is engineered to restore compression and performance in your two-stroke engine. With a 66.4mm bore, the Standard Bore Piston Kit ensures a precise fit for your Kawasaki KX250.

Overview

This Standard Bore Piston Kit Size A is a complete top‑end rebuild solution for Kawasaki KX250 dirt bikes built between 1992 and 2004. It replaces the worn piston with a precision‑machined 66.4mm unit to revive engine power and reliability. Whether you are restoring an old KX250 or refreshing the top end, this piston kit is the direct drop‑in choice.

Built For Performance

• Manufactured from high‑strength aluminum alloy for durability
• Includes piston rings, wrist pin, and circlips for complete installation
• Precision‑machined to 66.4mm bore size for exact fitment
• Size A grade ensures consistent clearance specifications
• Designed to withstand high RPM and thermal stress

Fits These Machines

• for Kawasaki KX250 (1992‑2004)

On‑The‑Job Use

• Motocross racing
• Off‑road trail riding
• Competitive enduro events
• Dirt bike rebuilding and restoration projects

Specs At A Glance

Good To Know

Q: Is the piston pre‑assembled with rings? A: Rings are included but not pre‑installed; you will need to install them carefully following the manufacturer’s instructions.

Q: Can I use this piston kit with a stock cylinder? A: Yes, the standard bore size is designed for stock cylinders in good condition; if your cylinder is worn, honing or boring may be required.

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