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      • Sierra 18-5181 Ignition Coil Replaces 802371A1
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        Sierra 18-5181 Ignition Coil

        $31.49
        $23.55

        Sierra 18-5181 Ignition Coil Sierra high-quality engine parts are designed to meet OEM specifications. Replacement ignition coil for Johnson/Evinrude and Mercury Outboards. Features: Primary Resistance: .09 ± 10 ohms Secondary Resistance: 10...

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      Mercury OEM Engine Parts Finder

      Mercury Outboard Ignition Coils

      Ignition coils are an important part of your Mercury outboard. They are responsible for transforming the voltage from one battery into number of volts needed to start a spark at the plugs. That’s why it is critical you replace your faulty ignition coils. We carry Mercury Outboard Ignition Coils for different engine models, so you’re sure to find what is right for you.