Heurofosh 6-inch Spark Plug Wire Set for OMC Johnson Evinrude V4/V6 — 4-Pack, Stainless Core & Silicone Insulation

Heurofosh 6" spark plug wire set replaces OEM 582365 and compatible Johnson/Evinrude leads to restore reliable ignition for V4 and V6 outboard motors.

These four 6-inch ignition leads from Heurofosh are built to fit many OMC applications, including Johnson and Evinrude outboards. Constructed with stainless steel conductors and silicone insulation, the set is engineered to withstand heat and engine bay exposure while maintaining consistent spark delivery. The kit is sold as a pack of four wires and is cross-referenced to several OEM and aftermarket part numbers for straightforward replacement.

Will these spark plug wires fit my Johnson or Evinrude outboard?

Compatibility covers many common OMC models; cross-references include Johnson 582134, 582135, 582365 and Sierra 18-8816, among others. Always match the physical connector type and 6" length to your motor to confirm fit.

• Length: 6 inches per wire, sold as a set of 4
• Cross-replaces: 582134, 582135, 582365, 777703, 802466, 802505
• Also replaces CDI 931-2365, Mallory 9-28005/9-28006, Sierra 18-8816
• Confirm connector style and routing before ordering

How are these wires built to handle marine conditions?

Heurofosh combines stainless steel conductors with high-temperature silicone insulation to resist corrosion, heat, and oil exposure common in outboard engine compartments. The silicone jacket keeps flexibility across temperature changes, helping maintain a consistent electrical path for spark transfer.

• Stainless steel core for durable conductivity
• Silicone insulation for heat and moisture resistance
• Engineered to minimize electrical leakage and interference
• Durable connectors designed for marine vibration

What performance and maintenance benefits can I expect?

Replacing aging or damaged plug wires restores dependable ignition timing and can reduce misfires, hard starts, and rough idling without altering engine tuning. New leads also reduce the chance of arcing and radio-frequency interference that can impact onboard electronics.

• Improved ignition reliability and smoother running
• Lower risk of spark leakage and arcing
• Easier troubleshooting with clearly matched replacement parts
• Simple swap—no special tools beyond standard hand tools

How should I install and inspect these spark plug wires?

Installation is a direct replacement: remove one old lead at a time, install the new 6" wire onto the spark plug and the coil/plug cap to preserve firing order. Inspect boots and crimps for secure seating and check for signs of heat damage or chafing after the first run.

• Replace one wire at a time to keep firing order correct
• Ensure tight, fully seated connections at plug and coil ends
• Route away from sharp edges and high-heat exhaust paths
• Recheck after a short run for secure fit and absence of arcing

Who is this for: This Heurofosh 6" spark plug wire set is aimed at boat owners, marine technicians, and DIYers working on OMC Johnson and Evinrude V4/V6 outboards who need a direct-fit, heat-resistant replacement. It suits routine maintenance, mid-season repairs, or anyone replacing brittle or failing ignition leads who wants a cost-effective, engineered alternative to OEM wires. If you are unsure about fit, compare the 6" length and connector types listed here with your existing leads before purchasing.