The ignition coil serves a similar purpose as a transformer. The ignition coil uses two coils (one inside the other) to transform the electrical energy from the engine battery to high voltage. It stores the electrical energy prior to releasing a high voltage current to the spark plug.

Ignition coils' purpose is to provide the spark plug an electrical pulse so it may jump the gap and produce a spark. The marine coil performs the same job as its automotive counterpart. This necessary part transforms the battery's electricity into the voltages needed to light the plugs. This spark then ignites the fuel, keeping your engine running. The marine coil performs the same job as its automotive counterpart. These components do not require maintenance other than replacing the spark plugs and their wires.

Key Features:

• Primary Resistance: 09 ± 10% ohms and Secondary Resistance: 10 ± 15% ohms

• Johnson/Evinrude and Mercury Outboards' replacement

• Polymers with high dielectric strength

• Steel laminates of the electrical grade

• 100% pure copper windings and epoxies with excellent dielectric strength packed in the coil housings

• Fit, form, and function must be identical to or better than the original equipment components

Product Specifications:

• Brand: Sea Star Solutions

• SKU: 18-5181

• UPC: 030999236807

• Weight: 0.49 LBS

• Dimensions: 6.1 x 4.9 x 1.3 inches

• Unit Of Measure: EA

• Exterior?: Machined

• Fit Type: Universal Fit

• Alternate Products SKU: 183-4477-S, 300-00732, 18-5181

• Manufacturer Part Number (MPN): 18-5181

• Replaces Products: 582995, 47-5181, GLM72100, 802371A1, 18-5181D, AP732, 92-72100, 30999236807, 9-23102

Primary Resistance .09 ± 10 ohms. Secondary Resistance 10 ± 15 ohms. Replacement for Johnson/Evinrude and Mercury Outboards

This product replaces:

582995, 47-5181, GLM72100, 802371A1, 18-5181D, AP732, 92-72100, 30999236807, 9-23102