9" Spark Plug Wire Lead – Fits Johnson/Evinrude OMC V4-V6 Engines (Replaces 582365)

9" Spark Plug Wire Lead – Fits Johnson/Evinrude OMC V4-V6 Engines (Replaces 582365)

This 9-inch spark plug wire lead is designed for a wide range of Johnson, Evinrude, and OMC V4-V6 outboard engines, typically from 10 HP to 235 HP. It serves as a high-quality replacement, ensuring reliable ignition performance.

Engineered to meet or exceed OEM specifications, this wire directly replaces multiple part numbers, including Johnson/Evinrude/OMC 582365, 582134, 582135, 777703, 802466, 802505; Sierra 18-5231, 18-5231-1; Mallory 9-28005, 9-28006; and Redline RL5231.

• Superior RFI Suppression: Ensures minimal interference with onboard electronics.
• Durable Construction: Features a Kevlar core with a stainless steel wound conductor, protected by high-temperature silicone boots and jacket.
• Direct Replacement Fit: Designed for straightforward installation without modification.

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 & Evinrude Serial Number Guide.

Technical Specifications

Package Contents

• 1 x 9" Spark Plug Ignition Coil Wire (Replaces 582365 / 18-5231-1)

Installation Guide

1. Safety First: Ensure the engine is completely turned off and cool to the touch. For safety, disconnect the negative battery terminal.
2. Locate the Wire: Identify the old spark plug wire on the engine that needs replacement.
3. Remove the Old Wire: Gently twist the boot on the spark plug, then pull it straight off. Do the same for the other end connected to the ignition coil or distributor pack.
4. Prepare the New Wire: Apply a small amount of dielectric grease to the inside of both boots on the new wire. This prevents corrosion and makes future removal easier.
5. Install the New Wire: Connect one end of the new wire to the ignition coil/distributor, ensuring it clicks into place.
6. Connect to Spark Plug: Firmly press the other boot over the end of the spark plug until you feel it snap on securely.
7. Final Check: Reconnect the negative battery terminal, and ensure the wire is routed away from hot engine components or sharp edges.

Troubleshooting & FAQ

How do I confirm this fits my engine?
First, check the "Compatible Engine Models" table on this page. This wire is designed for a broad range of Johnson/Evinrude V4 and V6 outboards. The most reliable method is to cross-reference the part number (582365) with your engine's service manual or original part.

What are the signs my old spark plug wire is failing?
Common symptoms include engine misfires, a rough or unstable idle, poor acceleration, and decreased fuel efficiency. Visual inspection may reveal cracks, burns, or corrosion on the wire, boots, or terminals.

What makes this wire different from a standard OEM wire?
This aftermarket wire is built for durability and performance, featuring a strong Kevlar core, a stainless steel wound conductor for excellent conductivity, and high-temperature silicone jacketing and boots. It also provides superior RFI suppression to protect your marine electronics.

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.