Yamaha B6K-8591A-40-00 - Engine Control Unit is a genuine Yamaha part. This control unit processes signals and controls the system it is part of. Confirm part number B6K-8591A-40-00 against your Yamaha parts diagram before ordering.

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Key Features & Benefits

• Connects to the factory wiring harness for its location.
• Processes sensor inputs and controls the system it manages.
• Replaces a failed or damaged control unit.

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Frequently Asked Questions

Is B6K-8591A-40-00 a genuine Yamaha part?

Yes. B6K-8591A-40-00 is the Yamaha part number for the Engine Control Unit. It replaces a failed electronic control unit with the specified Yamaha part.

Should I diagnose before replacing the Engine Control Unit (B6K-8591A-40-00)?

Yes. Control unit symptoms can be caused by wiring, sensors, or power supply issues. Confirm the fault with testing before installing part B6K-8591A-40-00.

Which Yamaha models use the Engine Control Unit (B6K-8591A-40-00)?

Model and year fitment data is not listed for B6K-8591A-40-00 on this page. Look up your model's Yamaha parts diagram and confirm that it lists part B6K-8591A-40-00 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.