Namura .040 Over Bore Top End Kit for Honda Sportrax 250 TRX250EX TRX250X 69.5mm

.040 Over Bore Top End Kit for Honda Sportrax 250

This top end kit provides a .040 over bore (69.5mm) piston and cylinder components for rebuilding the engine of Honda Sportrax 250 ATVs including TRX250EX and TRX250X models.

Overview

This .040 over bore top end kit is designed for the Honda Sportrax 250, TRX250EX, and TRX250X. It includes all necessary components to refresh the top end of your engine, restoring power and reliability. Whether you are rebuilding a worn engine or upgrading for performance, this top end kit delivers the precision fit you need.

Built For Performance

• Forged piston provides increased strength and heat resistance
• Chrome top piston ring reduces friction and improves seal
• Includes complete gasket set for hassle-free installation
• Precision machined to .040 over bore specification
• Designed for direct replacement on Honda Sportrax 250 engines

Fits These Machines

• for Honda Sportrax 250
• for Honda TRX250EX
• for Honda TRX250X

On-The-Job Use

• Trail and recreational ATV riding
• Rebuilding engines after bore wear or piston damage
• Performance restoration on older Sportrax models
• General ATV maintenance and engine overhaul

Specs At A Glance

Good To Know

Q: What is included in this top end kit? A: The kit includes a piston, piston rings, wrist pin, circlips, and a complete gasket set for installation.

Q: Does this kit require any modifications? A: This is a direct fit .040 over bore kit for the Honda Sportrax 250 engine; no additional machining is needed if the cylinder is already bored to spec.

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