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;
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

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

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

  • 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!
  • 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!

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