Namura Standard Bore Piston Kit Size C 94.97mm for Yamaha YZ450F 2003-2009 95mm

Namura Standard Bore Piston Kit Size C 94.97mm for Yamaha YZ450F 2003-2009

This Namura standard bore piston kit with Size C 94.97mm provides a direct replacement piston for Yamaha YZ450F models from 2003 to 2009, designed to restore engine performance and compression with a 95mm finished bore.

Overview

This Namura standard bore piston kit Size C (94.97mm) is a high-quality replacement piston designed for Yamaha YZ450F motorcycles produced between 2003 and 2009. It offers a reliable solution for rebuilding the top end, ensuring proper fit and function with the factory bore specification. The kit includes the piston, rings, wrist pin, and circlips for a complete installation.

Built For Performance

• Precision-machined from high-strength aluminum alloy for durability
• Size C (94.97mm) matched to stock bore for minimal clearance adjustment
• Includes premium piston rings for optimal compression and oil control
• Wrist pin and circlips provided for secure assembly
• Designed to meet OEM specifications for reliable performance

Fits These Machines

• for Yamaha YZ450F (2003-2009)

On-The-Job Use

• Motorcycle top-end rebuilds
• Off-road and motocross racing applications
• Engine restoration and performance maintenance

Specs At A Glance

Good To Know

Q: What is included in this piston kit? A: The kit includes the piston, piston rings, wrist pin, and circlips—everything needed for a standard bore replacement.

Q: Does this kit require any machining? A: This is a standard bore size piston; ensure your cylinder bore is within spec and may require light honing or sizing by a professional.

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