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*Price and Stocks may change without prior notice
*Packaging of actual item may differ from photo shown
- Electrical items MAY be 110 volts.
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About Advan-Tech 3F9W Ignition Coil
The ignition coil is a transformer which converts the vehicles battery voltage into the required high voltage needed to create an electrical spark across the gap in the spark plug. The spark is used to ignite the air fuel mixture within the combustion chamber of the engine. An ignition coil consists of a laminated iron core with two coils (windings) of copper wire surrounding the iron core. The two windings are the primary and secondary. The primary winding consists of several turns of heavy copper wire. The secondary winding consists of thousands of turns of smaller copper wire. The two windings are isolated from each other.
