# 3008M0077471 Mercury MerCruiser Ignition coil | Genuine Quicksilver OEM Part

🔧 Product Description

  

Genuine Quicksilver DFI / OptiMax Ignition Coil - Part Number: 300-8M0077471

  

A genuine Quicksilver ignition coil for selected Mercury DFI / OptiMax outboards. This coil supplies high-voltage spark output to the spark plug and is commonly used across 1.5L 3-cylinder DFI and selected 3.0L DFI / OptiMax engines.

  

⚙️ Key Features

  

• Genuine Quicksilver OEM ignition coil

• Correct Mercury part number 300-8M0077471

• Used on selected Mercury DFI / OptiMax outboards

• Replaces earlier 879984T-series ignition coil references

• Critical ignition component for clean spark, starting and running quality

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 300-8M0077471 current / later ignition coil reference

• 300-8M0077471 replaces 339-879984T01 / 339-879984T00 family where specified

  

OEM / Related Numbers:

  

• 300-8M0077471

• 8M0077471

• 3008M0077471

• 339-8M0077471

• 339-879984A01

• 339-879984T01

• 339-879984T00

• 879984T01

• 879984T00

  

Aftermarket / Verified Equivalents:

  

• Recmar: REC300-8M0077471

• Sierra: 184-0003 / 18-? equivalent coil family where listed

  

🚤 Compatibility

  

Commonly used on:

  

• Mercury DFI / OptiMax ignition systems

• Mercury 1.5L 3-cylinder DFI and selected 3.0L DFI applications

  

Typically suits:

  

• Engine models:

• Mercury 75 DFI 1.5L 3-cylinder - serial 0T980000 and up

• Mercury 80 Jet DFI 1.5L 3-cylinder - serial 1B586067 and up

• Mercury 90 DFI 1.5L 3-cylinder - serial 0T801000 and up

• Mercury 115 DFI 1.5L 3-cylinder - serial 0T801000 and up

• Mercury 115 Pro XS 1.5L 3-cylinder - serial 1B751825 and up

• Mercury 125 DFI 1.5L 3-cylinder - serial 1B736885 and up

• Mercury 200 DFI 3.0L - serial 1B504989 to 1B912785

• Mercury 200 Pro XS DFI 3.0L - serial 1B504989 to 1B912785

• Mercury 200 DFI 3.0L - serial 1B504989 and up

• Mercury 200 DFI 3.0L - serial 1B528615 and up

• Mercury DFI / OptiMax engines using coil 300-8M0077471 / 879984T01 where specified

  

• HP Range: commonly 75HP - 200HP DFI / OptiMax where specified

• Engine Type: Mercury DFI / OptiMax 2-stroke outboard

• System Type: Ignition coil

  

🔌 Function

  

The ignition coil converts low-voltage ignition input into the high-voltage spark required to fire the spark plug and ignite the air/fuel mixture.

  

Common signs of failure:

  

• Misfire on one cylinder

• Hard starting

• Rough idle

• Weak or no spark

• Coil fault code or failed resistance / spark test

  

📦 Condition

  

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 211.3 AUD
- **Vendor:** Quicksilver
- **Tags:** Quicksilver Marine Parts | Oils Service Kits & Engine Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 211.30 AUD | In stock |

## Images

- 3008M0077471 Mercury MerCruiser Ignition coil | Genuine Quicksilver OEM Part

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> Source: [Sawley's Auto and Marine](www.sawleysautoandmarine.com.au/products/3008m0077471-mercury-mercruiser-ignition-coil-genuine-quicksilver-oem-part)
> Updated: 2026-05-17