9" Spark Plug Wire – Fits Johnson/Evinrude V4–V6 Outboard Motors, 10–235 HP (Replaces OMC 582365)
9" Spark Plug Wire – Fits Johnson/Evinrude V4–V6 Outboard Motors, 10–235 HP (Replaces OMC 582365) is backordered and will ship as soon as it is back in stock.
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9" Spark Plug Wire – Fits Johnson/Evinrude V4–V6 Outboard Moto...
9" Spark Plug Wire – Fits Johnson/Evinrude V4–V6 Outboard Motors, 10–235 HP (Replaces OMC 582365) is backordered and will ship as soon as it is back in stock.
Product Details
This 9-inch spark plug wire is designed as a replacement ignition lead for selected Johnson/Evinrude V4–V6 outboard motors rated from 10 to 235 HP. It is supplied as a single replacement wire for restoring the connection between the ignition system and spark plug.
The wire is listed as a replacement for OMC 582365 and cross-referenced with Sierra 18-5231-1. Always compare the original wire's length, terminal style, routing, and engine model before ordering.
- Single replacement spark plug wire.
- Nominal 9-inch length for the specified application range.
- Designed for direct replacement when the original terminals and routing match.
- Aftermarket replacement component; not manufactured by Johnson, Evinrude, OMC, or Sierra.
Part Number Matrix
These are the documented manufacturer and aftermarket reference numbers associated with this wire. Reference numbers do not replace checking the complete engine application.
| Brand | Part Number |
|---|---|
| OMC | 582365 |
| Sierra | 18-5231-1 |
Engine & Model Compatibility
Use the information below as an application guide. Model-specific fitment can vary by year, ignition configuration, terminal arrangement, and serial-number range.
| Brand | Models | Rated HP | Stroke | Years | Reference Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson/Evinrude | Selected V4–V6 outboard motors | 10–235 HP | 2-Stroke | Not specified | 582365 | Confirm exact model, year, serial range, terminal style, and original wire length before purchase. |
Technical Specs
- Product Type
- Single spark plug wire
- Length
- 9 inches
- Application
- Selected Johnson/Evinrude V4–V6 outboard motors
- Rated Engine Range
- 10–235 HP
- Reference Number
- OMC 582365; Sierra 18-5231-1
- Installation
- Direct replacement when the original application and terminal arrangement match
- Package Type
- Single piece
What’s in the Box
- 1 x 9-inch spark plug wire
Installation Notes
- Ensure the engine is completely cool and disconnect the battery before beginning work.
- Record the routing of the original wire before removal. A photograph can help preserve the correct path.
- Grip the spark plug boot, twist gently, and pull it straight from the spark plug. Do not pull on the wire itself.
- Remove the opposite end from the distributor or ignition-coil terminal, as applicable to the engine.
- Compare the replacement wire with the original for length, boot shape, terminal arrangement, and overall routing.
- Install the new wire onto the ignition terminal and spark plug, pressing each boot firmly into place.
- Route the wire as originally installed and keep it clear of hot, sharp, or moving components.
- Reconnect the battery and test the engine after confirming that all connections are secure.
Troubleshooting & FAQ
How do I confirm that the 9-inch wire is the correct length?
Measure the original wire from end to end and compare its boots and terminals with the replacement. The wire should follow the original routing without stretching, excessive slack, or contact with hot or moving components.
Which engines is this wire intended for?
It is listed for selected Johnson/Evinrude V4–V6 outboard applications in the 10–235 HP range. Exact fitment depends on the engine model, year, serial range, ignition configuration, and terminal arrangement.
Is this wire for 2-stroke or 4-stroke engines?
The documented application is for selected 2-stroke Johnson/Evinrude V4–V6 outboard motors. Do not assume fitment for a 4-stroke engine unless the exact engine documentation confirms it.
What reference numbers does this wire replace?
The documented references are OMC 582365 and Sierra 18-5231-1. Use these numbers together with the physical dimensions and complete engine information to verify compatibility.
What are common signs that a spark plug wire needs replacement?
Possible signs include misfiring, rough idle, poor acceleration, hard starting, or visible cracking, burning, corrosion, or damage to the wire or boots. Diagnose the complete ignition system before replacing a component.
Is this an OEM part?
No. This is an aftermarket replacement spark plug wire and is not manufactured by Johnson, Evinrude, OMC, or Sierra.
Should I replace one wire or the complete set?
This listing contains one replacement wire. Replace only the damaged wire when appropriate, or inspect the complete set and replace additional wires if they show wear or electrical-performance problems.
Safety & Important Info
- Verify the exact engine model, year, serial range, stroke, terminal arrangement, and original wire length before ordering.
- Do not install a wire that is too short, improperly routed, or different from the original terminal configuration.
- Disconnect the battery and allow the engine to cool before installation.
- This is an aftermarket replacement component, not an OEM part.
- Professional installation is recommended when the correct ignition configuration cannot be confirmed.
About Sea Sierra
- Marine Replacement Parts — We supply replacement components for common marine service and repair applications.
- Application-Focused Listings — Product references and compatibility information are provided to help you compare the replacement with your original part.
- Fitment Comes First — Always confirm the complete engine and physical-part details before installation.
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