Marine Spark Plug Wire 6" – Fits Johnson/Evinrude Outboards (Replaces 582365, 18-8816-1)
Marine Spark Plug Wire 6" – Fits Johnson/Evinrude Outboards (Replaces 582365, 18-8816-1) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
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Marine Spark Plug Wire 6" – Fits Johnson/Evinrude Outboards (R...
Marine Spark Plug Wire 6" – Fits Johnson/Evinrude Outboards (Replaces 582365, 18-8816-1) is backordered and will ship as soon as it is back in stock.
Product Details
This high-performance Marine Spark Plug Wire 6" – Fits Johnson/Evinrude Outboards (Replaces 582365, 18-8816-1) is engineered for a wide range of Johnson/Evinrude 2-stroke outboard engines from the 1980s and 1990s, covering 10–235 HP models. It ensures reliable ignition performance for sensitive marine electronics.
It serves as a direct interchange for Johnson part numbers 582134, 582135, 582365, 777703, 802466, and 802505, along with aftermarket equivalents from CDI, Mallory, and Sierra.
- Installs as a direct replacement with no modification required.
- Features a Kevlar core and stainless steel wound conductor for maximum durability and horsepower.
- Built with corrosion-resistant terminals and premium silicone jacketing for longevity in marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Johnson | 582134 |
| Johnson | 582135 |
| Johnson | 582365 |
| Johnson | 777703 |
| Johnson | 802466 |
| Johnson | 802505 |
| CDI | 931-2365 |
| Mallory | 9-28005 |
| Mallory | 9-28006 |
| Sierra | 18-8816 |
| Sierra | 18-8816-1 |
| ZF | ZF478V |
Engine & Model Compatibility
Confirm your engine model and year in the table below.
For Johnson/Evinrude/OMC engines, this part fits various 2-stroke outboards manufactured in the 1980s and 1990s, primarily identified by HP range and OEM part number.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson/Evinrude | V4-V6 CROSSFLOW engines | 90–235 | 2-Stroke | 1980s–1990s | 582365 | Includes 90/100/115/120/125/130/135/140/150/155/175/185/200/235 HP models |
| Johnson/Evinrude | Various outboard models | 10–75 | 2-Stroke | 1980s–1990s | 582365 | Includes 10/15/20/25/30/40/45/50/55/60/65/70/75 HP models |
Technical Specs
- Product Type
- Marine Spark Plug Wire
- Installation
- Direct replacement
- Fuel Type
- Gasoline
- Connection
- Spark plug and distributor terminals
- Housing Material
- Premium silicone jacketing and boots
- Housing Color
- Black
- Dimensions
- 6 inches (152.4 mm) length
- Weight
- 0.08 lb (0.036 kg)
- Fitting Type
- Stainless steel spark plug and distributor terminals
- Warranty
- Limited Lifetime (Sierra brand) or 1 Year (other brands)
- Other Technical Attributes
- Kevlar core for durability, stainless steel wound conductor for maximum horsepower and performance, superior RFI suppression for sensitive electronics, corrosion-resistant terminals for maximum conductivity
What’s in the Box
Your package will contain one of the following configurations depending on the option selected:
- 1 x Marine Spark Plug Wire (582365/18-8816-1)
- 2 x Marine Spark Plug Wires (582365/18-8816-1)
- 4 x Marine Spark Plug Wires (582365/18-8816-1)
Installation Notes
- Disconnect the negative battery terminal for safety.
- Work on one spark plug wire at a time to avoid mixing up the firing order.
- Gently twist and pull the boot off the spark plug, then disconnect the other end from the distributor or coil.
- Compare the new wire with the old one to confirm the length and terminal types match.
- Apply a small amount of dielectric grease to the inside of the new wire's boots. This improves sealing and makes future removal easier.
- Press the distributor/coil boot onto its terminal until you feel or hear it click into place.
- Route the new wire along the original path, using any existing clips or looms to keep it secure.
- Press the spark plug boot firmly onto the spark plug until it seats completely.
- Repeat the process for any other wires being replaced.
- Once all wires are installed, reconnect the battery terminal.
- Start the engine to confirm it runs smoothly.
Troubleshooting & FAQ
How do I know if this wire fits my specific engine model?
This 6-inch wire fits a wide range of Johnson/Evinrude outboards from the 1980s and 1990s. The best way to confirm fitment is to match your original part number to the list in our Part Number Matrix. Also, check your engine's HP and model against the compatibility table.
What are the signs of a failing spark plug wire?
Common symptoms include a rough idle, engine misfires (especially under load), reduced power, poor fuel economy, and visible damage like cracks, burns, or corrosion on the wire or boots. You might also experience radio frequency interference (RFI) on your boat's electronics.
How often should I replace my spark plug wires?
Marine spark plug wires should be inspected annually for signs of wear or damage. There is no fixed replacement interval, but it's good practice to replace them during a major tune-up or if you notice any performance issues or visible deterioration.
Can I cut this wire to a custom length?
No. This wire is pre-fabricated to 6 inches with factory-installed terminals. Cutting it will destroy its ability to conduct electricity and suppress RFI correctly.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Our parts are manufactured in an ISO 9002 facility and are batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
This product is covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact our support team with your order details. Returns are accepted within our standard window for unused items in original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement component, not an OEM part.
- Professional installation is recommended for safety and optimal performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world conditions.
- Fast Global Fulfillment — We offer free standard delivery to most regions, with typical transit times of 5–15 days.
- Manufacturer-Direct Value — By working directly with manufacturers, we provide fair pricing without compromising on materials or quality control.
Payment & Security
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