9'' Spark Plug Wires Set 18-8818 Spark Plug Ignition Coil

These Creative.C 9-inch spark plug wires replace OEM 582365 and compatible numbers to restore reliable ignition in Johnson/Evinrude V4 and V6 outboard engines.

If your outboard is misfiring, running rough, or struggling under load, worn ignition wires are a common cause. This four-piece set of 9" (33 cm) red spark plug/ignition coil wires is engineered to match original equipment fit and length for many Johnson and Evinrude 10–235 HP models. Built to the same specifications as OEM parts, the wires deliver consistent spark delivery and easier installation for routine maintenance or repair.

Will these wires fit my Johnson or Evinrude engine?

Yes — the set is sized and specified for a broad range of Johnson and Evinrude outboards. Confirm fit by matching OEM numbers or checking engine HP and model family.

• Replaces OEM 582365 and compatible with Johnson 582134, 582135, 777703, 802466, 802505.
• Also cross-references CDI 931-2365, Mallory 9-28005/9-28006 and Sierra 18-8818.
• Fits many 4- and 6-cylinder models across 10–235 HP ranges; ideal for V4/V6 engines.

How do these wires affect engine performance?

Good ignition wires help deliver a stable spark to each cylinder, which supports smoother idle, more consistent throttle response, and better overall combustion. While they won't increase horsepower, replacing deteriorated wires can restore lost performance and reduce misfires.

• 9-inch length designed for larger V4/V6 ignition coil layouts.
• Consistent conductor width (10 mm) for steady spark transfer.
• Red insulation for easy routing and visual inspection during maintenance.

What materials and build quality should I expect?

These wires are manufactured to meet original factory specifications so they fit and perform like OEM parts. Expect durable insulation and secure terminal connections that resist vibration and marine conditions when properly installed.

• Original factory quality to match Johnson/Evinrude specifications.
• Sturdy terminals engineered for snug coil and spark plug connections.
• Insulated outer jacket resists heat and marine exposure during normal use.

How easy is installation and maintenance?

Installation is straightforward for anyone familiar with outboard ignition systems. Replace one wire at a time to preserve firing order, use proper routing to avoid contact with exhaust or hot surfaces, and inspect connections for corrosion.

• Four-piece set covers the necessary wires for V4/V6 coil configurations.
• Plug-and-play length and terminals minimize modification during fitment.
• Routine visual checks help prolong service life and early fault detection.

Who this is for: Boaters, marine mechanics, and DIY enthusiasts who need a reliable, OEM-equivalent spark plug wire set for Johnson and Evinrude outboard engines. This Creative.C set is appropriate for owners of V4 or V6 motors across the 10–235 HP spectrum who want a direct-replacement part that restores ignition reliability without custom fabrication. If you maintain multiple vessels or perform regular engine tune-ups, these wires give an economy of parts with dependable fit and predictable performance.