Namura Piston for Yamaha DT125LC MTX125 NSR125 RD125LC .040 Over Bore 57mm

Namura Piston for Yamaha

This Namura piston is a 0.040 overbore (57mm) replacement for Yamaha DT125LC, MTX125, NSR125, and RD125LC models, offering a direct fit for engine rebuilds. It restores compression and performance in these 125cc two-stroke engines.

Overview

This Namura piston for Yamaha is a 0.040 overbore (57mm) piston designed to fit DT125LC, MTX125, NSR125, and RD125LC motorcycles. It replaces the original piston when boring the cylinder to 57mm, restoring compression and power in these 125cc two-stroke engines. The piston kit includes rings and pin for a complete top-end rebuild.

Built For Performance

• Precision-machined from high-strength aluminum alloy for durability
• 0.040 oversize (57mm) matches common cylinder rebore specification
• Includes piston rings and wrist pin for complete installation
• Designed for 125cc two-stroke Yamaha engines

Fits These Machines

• for Yamaha DT125LC
• for Yamaha MTX125
• for Yamaha NSR125
• for Yamaha RD125LC

On-The-Job Use

• Rebuilding top end after bore wear or piston seizure
• Restoring lost compression and power in aging 125cc engines
• Preparing a bike for competition or recreational riding
• Performing a performance overbore upgrade

Specs At A Glance

Good To Know

Q: Does this piston include circlips and a pin? A: Yes, the kit comes with rings, a wrist pin, and circlips; you will need new cylinder gaskets and seals separately.

Q: Will this fit a Yamaha DT125RE? A: This piston is specifically listed for DT125LC, MTX125, NSR125, and RD125LC models; check your engine code and cylinder bore before ordering.

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