• 880891T14 Mercury ECU | Genuine Used Part
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880891T14 Mercury ECU | Genuine Used Part

880891T14 Mercury ECU | Genuine Used Part

$1,300.00 AUD
$1,300.00 AUD
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🔧 Product Description

Genuine Mercury 115 EFI FourStroke ECU / Engine Control Unit - Part Number: 880891T14

A genuine Mercury engine control unit used on selected 115HP EFI four-stroke outboards. This two-plug ECU is used on Mercury / Mariner 115 EFI FourStroke engines, including Yamaha-based 115HP four-stroke powerhead applications requiring the 880891T14 control module.

⚙️ Key Features

  • Genuine Mercury ECU / engine control unit
  • Correct Mercury part number 880891T14
  • Two-plug ECU configuration
  • Used on 115HP EFI FourStroke outboard applications
  • Cross-references with Yamaha 68V-8591A-14 ECU family where specified

🚤 Compatibility

Commonly used on

  • Mercury / Mariner 115 EFI FourStroke outboard ignition and fuel-control systems
  • Yamaha-based Mercury 115HP EFI four-stroke powerhead applications

Typically suits

  • Engine models:
  • Mercury 115 EFI FourStroke - serial 0T178500 to 0T800999
  • Mercury 115 EFI FourStroke - serial 0T801000 to 1B226999
  • Mercury 115 EFI FourStroke - serial 1B227000 to 1B366822 where the serial-numbered parts list specifies 880891T14
  • Mariner 115 EFI FourStroke - serial 0T178500 to 0T800999
  • Mariner 115 EFI FourStroke - serial 0T801000 to 1B226999
  • Mercury 115 EFI FourStroke two-plug ECU applications using 880891T14
  • Yamaha F115A / Mercury 115 EFI shared ECU family applications using 68V-8591A-14 / 880891T14
  • HP Range: 115HP
  • Engine Type: Mercury / Mariner EFI four-stroke outboard, Yamaha-based powerhead family
  • Year Range: approximately 2001 - 2005 USA emissions applications, plus listed later serial-numbered applications where 880891T14 is specified
  • Serial Range: commonly 0T178500 to 1B226999, with later listed 1B227000 to 1B366822 applications requiring exact emissions and ECU-label confirmation

🔌 Function

The ECU controls fuel injection, ignition timing, idle control, sensor monitoring, fuel-pump command, diagnostic fault storage and engine-protection strategy on compatible 115 EFI FourStroke engines.

⚠️ Common Signs of Failure

  • No-start with confirmed fuel, spark inputs and ECU power supply
  • Fuel pump command missing after relay and wiring checks
  • No injector pulse or unstable injector control
  • No diagnostic communication
  • Intermittent stalling, limp mode or misfire
  • Persistent ECU-related fault codes after sensor testing
  • Internal water, heat or voltage damage to ECU circuitry

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 880891T14 → Replaces / supersedes 880891T12 in listed applications
  • 880891T12 earlier related 115 EFI FourStroke ECU reference

OEM / Related Numbers

  • 880891T14
  • 880891T12
  • Related one-plug ECU reference: 880891T13
  • Yamaha related ECU reference: 68V-8591A-14
  • Yamaha related formatted reference: 68V-8591A-14-00
  • Related ignition coil reference: 880893T10
  • Related ignition coil reference: 880892T
  • Related rectifier / regulator reference: 881346T
  • Related ECU plate reference: 881345
  • Related grommet reference: 881304

Aftermarket / Verified Equivalents

  • No aftermarket equivalent

📦 Condition

  • Genuine used part
  • Removed from running engine where applicable
  • In good working condition unless otherwise stated

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in the condition you received it for a refund or exchange. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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