Yamaha B4X-W001A-00-00 - YZ125 Drive Chain & Sprocket is an accessory kit that includes the front sprocket, rear sprocket, and chain for convenient replacement.

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Key Features & Benefits

• Genuine Yamaha kit — includes original-equipment front sprocket, rear sprocket, and chain
• All three drivetrain wear components matched and replaced together
• Convenience and total savings versus buying chain and sprockets separately
• Keeps the whole drive system in sync for even wear and reliable power transfer

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Fits These Yamaha Models

Yamaha Model	Compatible Years
YZ125	2022-2027

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Frequently Asked Questions

What is Yamaha part B4X-W001A-00-00?

B4X-W001A-00-00 is the Yamaha YZ125 Drive Chain & Sprocket, an accessory kit including front and rear sprockets plus a chain for replacement needs.

Is B4X-W001A-00-00 a Yamaha accessory?

Yes, B4X-W001A-00-00 is categorized as a Yamaha accessory and includes components for chain and sprocket replacement.

Which Yamaha models fit B4X-W001A-00-00?

This kit fits the Yamaha YZ125 model from years 2021 through 2027. Confirm the exact SKU and model year before ordering.

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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.