Yamaha B5K-8591A-31-00 - Engine Control Unit is a genuine Yamaha part. This control unit processes signals and controls the system it is part of. Confirm part number B5K-8591A-31-00 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

What is the Yamaha Engine Control Unit (B5K-8591A-31-00)?

The Engine Control Unit is a genuine Yamaha part sold under part number B5K-8591A-31-00. It replaces a failed electronic control unit with the specified Yamaha part.

What does the Engine Control Unit (B5K-8591A-31-00) control?

The Engine Control Unit manages the system it is wired into, using inputs from related sensors, as shown for part B5K-8591A-31-00 in the Yamaha parts diagram.

How do I confirm B5K-8591A-31-00 fits my Yamaha?

Model fitment is not listed for part B5K-8591A-31-00 on this page. Compare the part number against the Yamaha parts diagram for your model and year, or confirm with a Yamaha dealer using your model or VIN 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.