Mercury Optimax PCM ECU | OEM 89790649T / 8M8022142 | Fits 2006–2009 Mercury Optimax Pro XS Racing 250 HP 3.0L DFI | 1-Year Warranty

Product Overview

Restore peak engine performance with this genuine OEM Mercury Optimax PCM (Powertrain Control Module / ECU), designed for 2006–2009 Mercury Optimax Pro XS Racing 250 HP 3.0L DFI outboards. This factory Mercury ECU has been professionally tested on the engine and verified using a CDI diagnostic tester to ensure proper operation before shipment. Removed from a 2009 Mercury Optimax Racing 250 HP donor engine, this PCM has 309 verified engine hours with no active fault codes. A CDI diagnostic report is included with your purchase, and the unit is backed by a 1-Year Working Warranty for complete peace of mind. Because Mercury Optimax Racing PCMs are calibration-specific, always verify your engine model, serial number, and OEM part number before purchasing.

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Key Features

• Genuine OEM Mercury Optimax PCM / ECU
• Fits 2006–2009 Mercury Optimax Pro XS Racing 250 HP 3.0L DFI outboards
• Professionally engine tested
• CDI diagnostic tested
• CDI report included
• 309 verified engine hours
• No active fault codes
• No visible damage
• Ready to install
• Backed by a 1-Year Working Warranty

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Technical Specifications

Specification	Details
Brand	Mercury
Product Type	PCM / ECU (Powertrain Control Module)
Condition	Used – Professionally Tested
OEM Part Numbers	89790649T, 8M8022142
Engine Type	Optimax Pro XS Racing DFI
Displacement	3.0L V6
Engine Cycle	2-Stroke Direct Fuel Injection (DFI)
Horsepower	250 HP

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OEM Part Numbers

Primary Part Numbers

• 89790649T
• 8M8022142

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Compatible Applications

Designed for select Mercury outboards including: Model Years

• 2006
• 2007
• 2008
• 2009

Horsepower

• 250 HP

Engine Type

• Mercury Optimax
• Mercury Pro XS Racing
• 3.0L V6
• DFI (Direct Fuel Injection)

Serial Range

• 1B752547 – 2B535608

Donor Engine

• Serial Number: 1B765361
• Model: 1250P73ED
• Year: 2009 Mercury Optimax Racing 250 HP

Important: Mercury Optimax Racing PCMs are calibration-specific. Always verify compatibility using your engine's serial number and OEM part number before purchasing. If you need assistance confirming fitment, contact EZ Boats Marine and we'll be happy to help.

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Condition

This Mercury Optimax PCM has been professionally inspected and tested and is in excellent used condition. Inspection highlights include:

• Tested on the engine prior to removal
• Professionally CDI tested
• CDI diagnostic report included
• 309 verified engine hours
• No active fault codes
• No visible physical damage
• Ready for installation

Please review all product photos carefully before purchasing.

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What's Included

Your purchase includes:

• OEM Mercury Optimax PCM / ECU
• CDI Diagnostic Test Report

Only the components shown in the product photos are included.

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Shipping Information

Your PCM 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 Mercury Marine Parts
• Professionally Engine & CDI Tested
• CDI Diagnostic Report Included
• 1-Year Working Warranty
• Honest Condition Descriptions
• Fast Nationwide & International Shipping
• Secure Packaging
• Experienced Marine Parts Specialists
• Dedicated Customer Support

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

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Frequently Asked Questions

Is this a genuine Mercury PCM?

Yes. This is an original OEM Mercury Optimax PCM/ECU manufactured by Mercury Marine.

Has this PCM been tested?

Yes. It was tested on the donor engine and verified using a CDI diagnostic tester. A CDI report showing 309 verified engine hours and no active fault codes is included.

Which engines does it fit?

This PCM fits select 2006–2009 Mercury Optimax Pro XS Racing 250 HP 3.0L DFI outboards within the specified serial number range. Always verify compatibility using your engine's serial number and OEM part number before ordering.

Is this covered by a warranty?

Yes. This PCM is backed by 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 fitment?

Absolutely. Simply send us your Mercury engine's model and serial number, and we'll confirm whether this OEM 89790649T / 8M8022142 PCM is the correct fit before you purchase.