Namura Standard Bore Size B 53.96mm Piston Kit for Yamaha YZ125 2005-2024 54mm

Standard Bore Size B 53.96mm Piston Kit for Yamaha

This piston kit is a direct replacement for Yamaha YZ125 models from 2005 to 2024, featuring a standard bore size B of 53.96mm for precise engine rebuilding.

Overview

This Namura standard bore size B piston kit is designed for Yamaha YZ125 motorcycles from 2005 to 2024, providing a 53.96mm bore diameter for accurate top-end rebuilding. It includes a piston, rings, wrist pin, and circlips for a complete overhaul. This kit restores compression and performance in your YZ125 engine.

Built For Performance

• High-strength aluminum alloy construction for durability
• Precision-machined skirt reduces friction and wear
• Matched ring set for optimal seal and compression
• Wrist pin with bronze bushings for smooth operation
• Circlips included for secure retention

Fits These Machines

• for Yamaha YZ125 (2005-2024)

On-The-Job Use

• Motocross racing and practice
• Enduro and off-road competition
• Engine rebuilds and top-end replacements
• Trail riding and recreational use

Specs At A Glance

Good To Know

Q: Does this kit include a piston pin? A: Yes, the kit comes with a wrist pin and circlips for a complete installation.

Q: What is the break-in procedure for this piston? A: Follow the manufacturer's recommended break-in steps, typically involving heat cycles and gradual load to ensure ring seating.

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