6" Marine Spark Plug Wire Lead Set – Fits Johnson/Evinrude/OMC Engines (Replaces 582365, 18-8816-1)

6" Marine Spark Plug Wire Lead Set – Fits Johnson/Evinrude/OMC Engines

This marine spark plug wire lead set is designed for a wide range of Johnson, Evinrude, and OMC outboard engines, including various V4 and V6 models from 10 to 235 HP. It serves as a direct replacement, restoring reliable ignition performance.

This set directly replaces Johnson/Evinrude part numbers 582134, 582135, 582365, 777703, 802466, and 802505, as well as aftermarket parts from Sierra, CDI, and Mallory.

• Installation Type: Direct fit
• Package Contents: Includes four 6-inch spark plug wire leads
• Construction: Features a durable silicone housing and a high-conductivity stainless steel core

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson Serial Number Guide.

Technical Specifications

Package Contents

• 4 x Spark Plug Wire Leads (Replaces 582365 / 18-8816-1)

Installation Guide

1. Safety First: Ensure the engine is completely cool and the battery is disconnected.
2. Locate Wires: Identify the spark plug wires connecting the ignition coil to the spark plugs.
3. One at a Time: Replace one wire at a time to avoid mixing up the firing order. Remove the old wire by firmly twisting and pulling the boot at both ends.
4. Inspect Connectors: Check the coil and spark plug terminals for corrosion or damage before installing the new wire.
5. Install New Wire: Securely attach the new wire, ensuring the boots click into place on both the spark plug and coil.
6. Check Fitment: Some models may require trimming the spark plug boot for a precise fit. Use a sharp blade to carefully shorten the boot if necessary.
7. Repeat Process: Continue this process for all remaining wires.
8. Final Check: Once all wires are replaced, reconnect the battery and test the engine.

Troubleshooting & FAQ

How do I confirm these wires fit my engine?
This set is designed for a broad range of 10-235 HP Johnson, Evinrude, and OMC V4-V6 engines. The most reliable method for confirming fitment is to match your existing part number to those listed in our Part Number Cross-Reference table.

Do I need to modify these wires for installation?
In most cases, these are a direct fit. However, as noted in customer feedback for similar parts, some engine models may require a slight trimming of the spark plug boots to ensure a perfect seat. This can be done carefully with a sharp blade.

What are the signs that my spark plug wires need replacing?
Common symptoms include rough idling, engine misfires (especially under load), difficulty starting, reduced fuel efficiency, or visible damage like cracks, burns, or corrosion on the wires and boots.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.