Namura Standard Bore Piston Kit Size C 96.97mm for Yamaha YZ450FX 2021-2023 97mm

Standard Bore Piston Kit Size C 96.97mm for Yamaha

This is a Namura Standard Bore Piston Kit Size C 96.97mm designed to replace the factory piston in your Yamaha YZ450FX from 2021-2023, offering a direct-fit 97mm bore solution for restoring compression and performance. This Namura Standard Bore Piston Kit provides a reliable OEM replacement using premium materials and precise machining.

Overview

The Namura Standard Bore Piston Kit Size C 96.97mm is a direct replacement piston for the Yamaha YZ450FX 2021-2023 models, featuring a 97mm bore diameter. This piston kit restores lost compression and performance by replacing a worn or damaged factory piston, utilizing a forged aluminum design for strength and thermal stability. It is specifically sized as a "C" fitment to allow for proper cylinder clearance and reliable engine operation.

Built For Performance

• Forged aluminum construction for high strength and heat resistance
• Precision-machined ring grooves ensure proper ring sealing and oil control
• Includes piston rings, wrist pin, and circlips for a complete replacement
• Manufactured to OEM specifications for a direct fit without modification
• Lightweight design reduces reciprocating mass for improved throttle response

Fits These Machines

• for Yamaha YZ450FX 2021-2023

On-The-Job Use

• Replace a worn or damaged piston during top-end rebuilds on competition dirt bikes
• Ideal for routine engine maintenance after high-hour use on off-road tracks or trails
• Use when restoring compression and power output on a high-mileage YZ450FX motor

Specs At A Glance

Good To Know

Q: Does this piston kit include all necessary components for installation? A: Yes, the kit includes the piston, rings, wrist pin, and circlips needed for a complete top-end rebuild, though you should always replace the cylinder gasket set separately for best results.

Q: How does the "Size C" designation affect fitment on my YZ450FX? A: Size C indicates a specific production tolerance range used by Namura to match cylinder wear; you should measure your cylinder bore to ensure this size falls within the clearance spec for a 97mm piston.

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