Namura Standard Bore Size A Top End Kit for KTM 250 SX fits 2003-2004 66.4mm

Standard Bore Size A Top End Kit for KTM

This Standard Bore Size A Top End Kit supplies all necessary components to restore compression and performance on compatible KTM 250 SX models.

Overview

The Standard Bore Size A Top End Kit is a complete assembly for reviving the top end of KTM 250 SX engines. This top end kit contains a 66.4mm piston, rings, wrist pin, and circlips engineered to factory specifications. Designed for riders and mechanics, this top end kit offers a reliable solution for restoring power and reliability.

Built For Performance

• Includes 66.4mm piston
• Includes complete ring set
• Includes wrist pin and circlips
• Designed for standard bore size A
• Manufactured to OEM specifications

Fits These Machines

• for KTM 250 SX (2003-2004)

On-The-Job Use

• During a full top-end rebuild on a KTM 250 SX
• When restoring lost compression and performance
• As a scheduled maintenance replacement at recommended intervals

Specs At A Glance

Good To Know

Q: Does this kit include a gasket set? A: No, this top end kit includes only the piston, rings, pin, and clips. Gaskets should be ordered separately.

Q: Is the piston pre-installed on the connecting rod? A: No, the piston is supplied separately; the user must install it according to the service manual.

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