Namura .020 Over Bore Piston Kit fits Honda Sportrax 250 TRX250EX & TRX250X 69mm

Namura .020 Over Bore Piston Kit for Honda

This .020 over bore piston kit from Namura provides a 69mm piston for rebuilding Honda Sportrax 250 TRX250EX and TRX250X engines.

Overview

The Namura .020 over bore piston kit is a direct replacement for Honda Sportrax 250 models, offering a 69mm bore size to refresh worn cylinders. It is engineered for high-performance and reliable operation in Honda TRX250EX and TRX250X ATVs. This piston kit includes rings and pin for a complete overhaul.

Built For Performance

• Precision-cast aluminum alloy piston for durability
• .020 overbore size (69mm) to restore cylinder clearance
• Includes piston rings and wrist pin for complete installation
• Designed for high-rpm use in sport ATV engines
• Strict quality control from Namura for consistent fit

Fits These Machines

• for Honda TRX250EX
• for Honda TRX250X

On-The-Job Use

• Rebuilding Honda Sportrax 250 engines after cylinder wear
• Performance rebuilds for trail riding and racing
• Engine overhaul in TRX250EX and TRX250X ATVs
• Restoring compression and power in high-mileage engines

Specs At A Glance

Good To Know

Q: What is the difference between standard bore and .020 over? A: A .020 over piston is used when the cylinder is slightly worn and needs a light bore to restore factory clearances. Always measure your cylinder before ordering to confirm the correct oversize.

Q: Does this kit include a piston pin? A: Yes, the kit includes the wrist pin and rings, but you may need to reuse your original circlips or purchase them separately.

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