Description

Mercury MerCruiser Ignition Coil Kit – 8M0079202

Maintain strong and reliable spark performance with the Mercury MerCruiser Ignition Coil Kit 8M0079202. This genuine Mercury OEM ignition coil is designed for MerCruiser GM-based V6 and V8 sterndrive and inboard engines equipped with Thunderbolt IV or Thunderbolt V ignition systems.

The coil converts battery voltage into the high-voltage spark required to ignite the air-fuel mixture in the engine cylinders. Built to Mercury Marine OEM specifications, this ignition coil ensures consistent ignition performance and dependable engine operation in demanding marine environments.

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Key Features

• Genuine Mercury Marine / Quicksilver OEM ignition coil kit

• Designed for Thunderbolt IV and Thunderbolt V ignition systems

• Provides strong, consistent spark for reliable engine performance

• Marine-grade construction for durability in harsh environments

• Direct replacement for original Mercury ignition components

• Meets Mercury Marine OEM quality and performance standards

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Part Details

OEM Part Number: 8M0079202
Mercury Reference Number: 300-8M0079202
Product Type: Ignition coil kit
Voltage: 12V ignition system

Replaces / Cross References

• 392-7803A4

• 392-805570A2

• Sierra 18-5438

• CDI Electronics E18-0008

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Compatible MerCruiser Engines

Designed for GM-based MerCruiser gasoline engines using Thunderbolt IV or V ignition, including:

MerCruiser V6 Engines

• MerCruiser 4.3L V6

MerCruiser Small-Block V8 Engines

• MerCruiser 5.0L V8

• MerCruiser 5.7L V8

• MerCruiser 350 MAG

MerCruiser Big-Block V8 Engines

• MerCruiser 6.2L V8

• MerCruiser 7.4L V8 (454 MAG)

• MerCruiser 8.2L V8 (502 MAG)

These engines are commonly installed in MerCruiser sterndrive and inboard marine engine packages equipped with Thunderbolt ignition systems.

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Function

The ignition coil transforms 12-volt battery power into high-voltage electricity needed to fire the spark plugs. Proper ignition coil performance is critical for smooth engine operation.

Replacing a faulty coil helps:

• Restore strong spark to the ignition system

• Improve engine starting and idle performance

• Prevent misfires and power loss

• Maintain reliable engine operation

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Important Compatibility Note

Ignition components vary depending on engine model, ignition system type, and serial number range. Always verify compatibility using the engine model and serial number before ordering to ensure the correct ignition coil.

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Shipping: Ships same or next day for fast Canada wide shipping.