Mercury EFI Complete Ignition Kit | OEM 89195214 | Fits 2002–2005 Mercury & Mariner 40 HP EFI 3-Cylinder 4-Stroke | 396 Hours | 1-Year Warranty

Product Overview

Restore reliable ignition and engine management with this genuine OEM Mercury EFI Complete Ignition Kit, designed for 2002–2005 Mercury and Mariner 40 HP EFI 3-cylinder 4-stroke outboards. This complete electrical package includes the ECU, wiring harness, three ignition coils, and relays, providing everything needed to power your engine's ignition and engine management system. Removed from a 2004 Mercury 40 HP EFI freshwater engine, this complete system has 396 verified engine hours and has been professionally CDI tested, with a diagnostic report included. All components are in perfect working condition with no cut, burnt, or broken wires. Backed by a 1-Year Working Warranty, this kit is ready for installation. Because Mercury EFI ECUs are horsepower-specific, always verify compatibility using your engine's serial number and OEM part number before purchasing.

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Key Features

• Genuine OEM Mercury Complete Ignition Kit
• Fits 2002–2005 Mercury & Mariner 40 HP EFI 3-Cylinder 4-Stroke outboards
• Complete engine management package
• Includes ECU, wiring harness, ignition coils, and relays
• Professionally CDI tested
• CDI diagnostic report included
• 396 verified engine hours
• Freshwater component
• No cut, burnt, or broken wires
• Ready to install
• Backed by a 1-Year Working Warranty

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Technical Specifications

Specification	Details
Brand	Mercury
Product Type	Complete Ignition & Engine Management Kit
Condition	Used – Professionally Tested
ECU Part Number	89195214 / 891952014
Wiring Harness	878132T3
Ignition Coils	877807A2 (Qty. 3)
Relays	882751A
Engine Type	EFI 4-Stroke
Cylinders	3
Horsepower	40 HP

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OEM Part Numbers

ECU

• 89195214
• 891952014

Wiring Harness

• 878132T3

Ignition Coils

• 877807A2 (3 Included)

Relays

• 882751A

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Compatible Applications

Designed for select Mercury and Mariner outboards including: Model Years

• 2002
• 2003
• 2004
• 2005

Horsepower

• 40 HP

Engine Type

• Mercury EFI
• Mariner EFI
• 4-Stroke
• 3-Cylinder

System Includes

• ECU
• Wiring Harness
• Three Ignition Coils
• Relays

Important: This ECU is 40 HP-specific. The 30 HP and 50 HP versions of this powerhead use different ECUs. 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 EFI Complete Ignition Kit has been professionally inspected and tested and is in excellent used condition. Inspection highlights include:

• Removed from a freshwater engine
• 396 verified engine hours
• Professionally CDI tested
• CDI diagnostic report included
• Perfect working condition
• No cut, burnt, or broken wires
• Ready for installation

Please review all product photos carefully before purchasing.

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What's Included

Your purchase includes:

• OEM Mercury ECU (89195214 / 891952014)
• OEM Wiring Harness (878132T3)
• Three OEM Ignition Coils (877807A2)
• OEM Relays (882751A)
• CDI Diagnostic Test Report

Only the components shown in the product photos are included.

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Shipping Information

Your ignition kit will be carefully packaged to protect all electrical 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
• Complete Plug-and-Play Ignition Package
• Professionally CDI Tested
• CDI Diagnostic Report Included
• Freshwater Component
• 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 ignition kit?

Yes. This is an original OEM Mercury Complete Ignition & Engine Management Kit, including the ECU, wiring harness, ignition coils, and relays.

Has this ignition kit been tested?

Yes. The complete system was professionally CDI tested and is in perfect working condition. A CDI diagnostic report showing 396 verified engine hours is included.

Which engines does it fit?

This kit fits select 2002–2005 Mercury and Mariner 40 HP EFI 3-cylinder 4-stroke outboards. The ECU is 40 HP-specific and is not interchangeable with the 30 HP or 50 HP versions. Always verify compatibility using your engine's serial number and OEM part number before ordering.

Is this covered by a warranty?

Yes. This complete ignition kit is backed by a 1-Year Working Warranty. If any warrantied electrical component 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 89195214 Complete Ignition Kit is the correct fit before you purchase.