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BLUTOKS Thunderbolt Ignition Coil Compatible with Mercury Marine Mercruiser 4.3L 5.0L 5.7L 305 350 V6 V8 392-805570A2, 18-5438, 392-7803A4

Free shipping on orders over $29.99

$26.99

$ 11 .99 $11.99

In Stock

About this item

  • Fits Mercruiser engines with Thunderbolt IV and V Ignition systems only
  • Replaces: Mercruiser 392-805570A2 392-7803A4
  • Works with HEI systems only, does not work with point ignition systems
  • This ignition coil meets or exceeds OEM specifications
  • OEM quality without the OEM price!


New ignition coil for Mercruiser engines with Thunderbolt IV and V Ignition systems only


David Friesen
Reviewed in the United States on August 19, 2024
Needed a new coil for my boat and this one worked perfectly
Bernie
Reviewed in the United States on July 28, 2024
Works great
Customer
Reviewed in the United States on June 23, 2024
Worked well nothing negative to say.
Debora J. Stuczynski
Reviewed in the United States on May 30, 2024
Replacement coil for Thunderbolt Ignition 4.3 Boat Fired up first try
Caring Customer
Reviewed in the United States on May 22, 2024
Worried that this would look different than the original, but was so happy that it does actually match the appearance. Very good value for the money. Removed 2 screws, attached the lights, 6 minute job. Fit was perfectly. Good quality product.
Shannon Bremer
Reviewed in the United States on May 16, 2024
Good coil! The boat started right up! It has extra clips I did not use, but are there for easy wire hook up.
Johnny W.
Reviewed in the United States on September 28, 2018
Not sure yet. Box coil was in had an oil spot soaked in the end flap. Opened and smelled oil. There wasn’t any dripping off but I won’t know how good or bad it is till I install tomorrow. Proball be buying a True Mercruiser coil in near future.
P-City Smitty
Reviewed in the United States on July 25, 2018
Works fine. Didn’t solve my problem but functions as should.
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