Namura Standard Bore Piston Kit Size B 43.45mm for Yamaha YZ65 2018-2024 43.5mm

Standard Bore Piston Kit Size B 43.45mm for Yamaha YZ65 2018-2024

This Namura standard bore piston kit delivers a precise 43.45mm bore for Yamaha YZ65 models from 2018 to 2024, restoring top-end performance and compression.

Overview

This standard bore piston kit size B 43.45mm is a direct replacement for Yamaha YZ65 2018-2024 engines, providing new piston and rings for reliable power. Designed for off-road racing and trail use, this piston kit ensures a proper fit and lasting durability.

Built For Performance

• Machined from high-strength aluminum alloy for lightweight strength
• Precision-ground piston skirt reduces friction and wear
• Includes premium piston rings for optimal sealing
• Designed to match OEM bore specifications 43.45mm

Fits These Machines

• for Yamaha YZ65 (2018-2024)

On-The-Job Use

• Motocross racing
• Trail riding
• Top-end rebuilds for performance restoration

Specs At A Glance

Good To Know

Q: What bore size does this piston kit match? A: This piston kit is sized at 43.45mm, which is the standard bore for Yamaha YZ65 models from 2018 to 2024.

Q: Do I need to hone the cylinder before installation? A: It is recommended to hone the cylinder to the correct crosshatch pattern and measure bore clearance to ensure proper 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.