Namura Standard Bore Piston Kit Size C 76.98mm for Yamaha YZ250FX 2015-2019 77mm

Namura Standard Bore Piston Kit for Yamaha YZ250FX

This Namura Standard Bore Piston Kit is a replacement piston for Yamaha YZ250FX motorcycles from 2015 to 2019, featuring a size C 76.98mm bore.

Overview

The Namura Standard Bore Piston Kit is designed for Yamaha YZ250FX models to restore engine compression and power. This piston kit includes the piston, rings, and pin for a complete top-end rebuild. It is intended for riders maintaining their 2015-2019 YZ250FX dirt bikes.

Built For Performance

• Manufactured from high-strength aluminum alloy for durability
• Precision-machined to 76.98mm bore size (nominal 77mm)
• Includes premium quality piston rings for optimal sealing
• Lightweight design reduces reciprocating mass for quicker revs
• Direct replacement for standard bore size without overboring cylinder

Fits These Machines

• for Yamaha YZ250FX (2015-2019)

On-The-Job Use

• Motocross and off-road racing on Yamaha YZ250FX
• Trail riding and enduro events requiring top-end reliability
• Engine rebuilds when piston wear reaches service limit
• Maintaining compression and power in high-hour engines

Specs At A Glance

Good To Know

Q: Does this piston kit include a wrist pin and circlips? A: Yes, the Namura Standard Bore Piston Kit includes the piston, rings, wrist pin, and circlips for a complete installation.

Q: Can this piston be used without re-boring the cylinder? A: Yes, this is a standard bore size piston designed for use with a standard bore cylinder in good condition.

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