Yamaha Engine Control Unit (ECU) | OEM 60Y-8591A-00-00 | Fits 2003–2004 Yamaha 225 HP & 250 HP Outboards | 1-Year Warranty

Product Overview

Restore reliable engine performance with this genuine OEM Yamaha Engine Control Unit (ECU), designed for 2003–2004 Yamaha 225 HP and 250 HP outboards. This factory Yamaha ECU has been professionally inspected and is ready for installation, making it an excellent replacement for a faulty or damaged engine control module. The ECU is in good used condition with no visible physical damage. Electronics have been tested where possible, and although the unit may not have been fully bench-tested, it is backed by a 1-Year Working Warranty for added confidence. Because Yamaha ECUs are application-specific, always verify your engine's model, serial number, and OEM part number before purchasing.

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Key Features

• Genuine OEM Yamaha Engine Control Unit (ECU)
• Fits 2003–2004 Yamaha 225 HP and 250 HP outboards
• Professionally inspected
• Electronics tested where possible
• No visible physical damage
• Ready for installation
• OEM Yamaha quality
• Backed by a 1-Year Working Warranty

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Technical Specifications

Specification	Details
Brand	Yamaha
Product Type	Engine Control Unit (ECU)
Condition	Used – Professionally Inspected
OEM Part Number	60Y-8591A-00-00
Alternate Part Numbers	60Y-8591A-01-00, 60Y-8591A-02-00
Horsepower	225 HP, 250 HP
Model Years	2003–2004
Warranty	1-Year Working Warranty

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OEM Part Numbers

Primary Part Number

• 60Y-8591A-00-00

Also Compatible With

• 60Y-8591A-01-00
• 60Y-8591A-02-00

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Compatible Applications

Designed for select Yamaha outboards including:

Model Years

• 2003
• 2004

Horsepower

• 225 HP
• 250 HP

Important: Yamaha ECUs are calibration-specific. Always verify compatibility using your engine's model, serial number, and OEM part number (60Y-8591A-00-00) before ordering. Contact EZ Boats Marine if you need assistance confirming fitment.

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Condition

This OEM Yamaha ECU has been professionally inspected and is in excellent used condition. Inspection highlights include:

• Used OEM Yamaha component
• No visible physical damage
• Electronics tested where possible
• May not have been fully bench-tested
• Ready for installation
• Backed by a 1-Year Working Warranty

Please review all product photos carefully before purchasing.

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What's Included

Your purchase includes:

• OEM Yamaha Engine Control Unit (ECU)
• Part Number 60Y-8591A-00-00

Only the components shown in the listing photos are included.

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Warranty

This ECU is backed by a 1-Year Working Warranty. If the ECU fails during normal use within the warranty period, EZ Boats Marine will replace the unit or provide a refund if a replacement is unavailable.

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Shipping Information

Your ECU will be carefully packaged to protect sensitive electronic components during shipping. We offer fast shipping throughout the United States, with international shipping available upon request. For an accurate shipping quote, please provide:

• Country
• ZIP or Postal Code
• Residential or Commercial Address
• Whether liftgate service is required

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Why Buy from EZ Boats Marine?

• Genuine OEM Yamaha Marine Parts
• Professionally Inspected Electronics
• Honest Condition Descriptions
• Secure Packaging for Electronic Components
• Fast Nationwide & International Shipping
• Experienced Marine Parts Specialists
• Dedicated Customer Support
• 1-Year Working Warranty

EZ Boats Marine is committed to supplying high-quality OEM marine parts backed by expert service and dependable customer support.

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Frequently Asked Questions

Is this a genuine Yamaha ECU?

Yes. This is an original OEM Yamaha Engine Control Unit manufactured for Yamaha outboards.

Has this ECU been tested?

The electronics have been tested where possible. While the unit may not have been fully bench-tested, it has been professionally inspected and is backed by a 1-Year Working Warranty.

Which engines does it fit?

This ECU fits select 2003–2004 Yamaha 225 HP and 250 HP outboards. Always verify compatibility using your engine's model, serial number, and OEM part number before ordering.

Which part numbers are compatible?

This listing includes compatibility with:

• 60Y-8591A-00-00
• 60Y-8591A-01-00
• 60Y-8591A-02-00

Always verify the correct part number for your application.

Is this ECU ready to install?

Yes. The ECU has been professionally inspected, shows no visible damage, and is ready for installation.

Is this covered by a warranty?

Yes. This ECU includes a 1-Year Working Warranty. If it fails during normal use, EZ Boats Marine will replace it or provide a refund if a replacement is unavailable.

Can EZ Boats Marine verify compatibility?

Absolutely. Send us your Yamaha engine's model and serial number, and we'll confirm whether this OEM 60Y-8591A-00-00 ECU is the correct replacement for your outboard before you purchase.