Yamaha B4B-W001A-10-00 - YZ85 Drive Chain & Sprocket is a kit that includes front and rear sprockets and chain, providing a convenient service parts package for maintenance.

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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
YZ85	2021-2027

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Frequently Asked Questions

What is Yamaha part B4B-W001A-10-00?

B4B-W001A-10-00 is the Yamaha YZ85 Drive Chain & Sprocket, an accessory kit that includes the front sprocket, rear sprocket, and chain for maintenance.

Is B4B-W001A-10-00 a Yamaha accessory?

Yes, B4B-W001A-10-00 is classified as a Yamaha accessory designed for service and maintenance.

Which Yamaha models fit B4B-W001A-10-00?

This kit fits the Yamaha YZ85 model for model 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.