Ciweisah Outboard Ignition Coil 2-Pack — Replacement for Johnson/Evinrude 582508 (Black) Restores Reliable Spark

Ciweisah replacement outboard ignition coils (2-pack) are direct-fit units that restore spark generation for compatible Johnson and Evinrude motors by replacing OEM numbers 582508 / 183-2508 / 18-5179. Whether you're repairing a weekend runabout or maintaining a larger offshore motor, a reliable ignition coil is critical to getting consistent spark and dependable starts. These Ciweisah coils are offered as a set of two, designed to match the fit, form, and electrical function of the original parts used across a wide range of Johnson and Evinrude engines from small 4HP units up through large 300HP applications.

Which engines and OEM numbers does this coil replace?

These coils are manufactured to substitute the original ignition coils identified by part numbers 582508, 183-2508, and 18-5179. They are compatible with an extensive span of Johnson and Evinrude outboard models, covering many common horsepower classes used in recreational and commercial boats.

• Directly replaces OEM: 582508, 183-2508, 18-5179
• Fits models across 4HP up to 300HP ranges
• Commonly used on 6HP, 15HP, 70HP, 85HP, 88HP, 90HP, 115HP, 120HP, 125HP engines
• Suitable for Johnson and Evinrude / BRP / OMC platforms

How does installing these coils affect engine starting and performance?

Ignition coils transform low battery voltage into the high-voltage pulses needed to fire spark plugs. Replacing a worn or damaged coil with a properly matched unit helps restore consistent spark timing, which improves crank-to-start reliability and steadier idling under load.

• Delivers stable high-voltage output for reliable ignition
• Reduces misfires and hard-start conditions when faulty coil is replaced
• Helps maintain smooth engine idle and acceleration response

What should I check before installing a replacement Ciweisah coil?

Confirming compatibility prevents wasted installation time. Check the original part number on your coil or in the motor’s parts manual, compare connector and mounting features, and inspect wiring for corrosion before and after installation.

• Verify OEM number on old coil matches 582508 / 183-2508 / 18-5179
• Match connector type and mounting hole positions to OEM coil
• Inspect spark plug wires, terminals, and battery condition while replacing

How easy is the swap and what’s included in the package?

The kit arrives as two ignition coils intended to replace the pair on many multi-cylinder outboards; installation is typically straightforward with basic hand tools. Remove the old coil, orient the new coil the same way, secure mounting hardware, and reconnect wiring to restore operation.

• Package contains 2 x Ciweisah ignition coils (18-5179 equivalent)
• Designed for bolt-in replacement using existing mounting points
• Simple wiring reconnection; no special tools required beyond common hand tools

Who is this for? This two-pack is aimed at boat owners, marine mechanics, and fleet caretakers who need a reliable, cost-effective replacement for failed or aging ignition coils on Johnson and Evinrude outboards. If you maintain motors across multiple horsepower classes or keep spare parts aboard for field repairs, these direct-fit Ciweisah coils provide a practical option to restore ignition function quickly. Always confirm OEM numbers and model fitment before purchase to ensure correct application.

FAQ

Q: Will these coils fit my Johnson 115HP motor?

A: They replace OEM 582508 / 18-5179 and commonly fit many Johnson/Evinrude 115HP models. Verify your motor’s coil part number first.

Q: Are installation tools or wiring adapters required?

A: No special tools are typically needed—just basic hand tools. Match connector types before installation.