Johnson Evinrude Ignition Coil 0582508 Sierra 18-5179 4-300HP
MS0582508
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Ignition Coil 0582508
Johnson / Evinrude Carburetted 2‑Stroke Applications
Aftermarket single-output ignition coil for a broad range of Johnson and Evinrude carburetted two-stroke outboards that specify OMC/BRP 0582508. Sierra catalogues cross-reference the same application to 18-5179. Because OMC used several visually similar coil families, the original part number is the primary fitment check.
Key Features
- ✔ Single-output replacement ignition coil
- ✔ For selected carburetted Johnson/Evinrude two-strokes
- ✔ Broad 1985-era and later application family
- ✔ Compact marine-grade replacement component
- ✔ Cross-referenced to Sierra 18-5179 and Mallory 9-23107
Technical Specs
| Part type | Single-output ignition coil |
| Primary OEM reference | 0582508 / 582508 |
| Approx. dimensions | 92 × 57 × 67 mm |
| Approx. weight | 0.17 kg |
| 4Boats SKU | MS0582508 |
Compatibility / Fitment Guide
| Engine family | Catalogue coverage commonly associated with 0582508 | Checks / exclusions |
|---|---|---|
| 2-cylinder carburetted two-stroke | Selected 4–60 HP applications, primarily 1985–2005 | Confirm OEM 0582508; not every model in the range uses this coil. |
| 3-cylinder carburetted two-stroke | Selected 25–75 HP applications, primarily 1985–2001 | Check model code and ignition system. |
| 4-cylinder carburetted two-stroke | Selected 65–140 HP applications | Do not confuse with dual-output OIS coil 0583740. |
| 6- and 8-cylinder carburetted two-stroke | Selected 150–300 HP applications | Confirm one of the listed references for the exact model/year. |
Excludes E-TEC/direct-injection systems, the 1977–1984 CDI 183-2366 crossflow family and 60-degree V4/V6 applications requiring dual-output 0583740. Published catalogues describe 18-5179 as fitting most—not all—4–300 HP engines from the relevant era.
Part Number Cross Reference
| OMC / BRP | 0582508; 582508; 0777661; 777661 |
| Sierra | 18-5179 / 18-5179-1 |
| CDI Electronics | 183-2508 |
| Mallory | 9-23107 |
| GLM / Redline | 72010 / RL5179 |
Cross-reference numbers identify compatible applications; packaging and brand may differ.
Frequently Asked Questions
Will it fit every 4–300 HP Johnson or Evinrude?
No. That is a catalogue range; the exact model must specify 0582508.
Is this the dual-output 0583740 coil?
No. This is the single-output 0582508 family.
Is it suitable for E-TEC engines?
No compatibility with E-TEC/direct-injection systems is claimed.
Is it genuine BRP or Sierra?
No. It is an aftermarket replacement cross-referenced to those numbers.
Verify the engine model code, original part number and physical interface before installation.
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