An ignition coil is an electrical component of the ignition system of an internal combustion engine. It transforms the low electrical voltage supplied by the vehicle's battery into a high voltage sufficient to create a spark in the spark plug. This spark is used to ignite the air-fuel mixture in the engine's combustion chamber, allowing the vehicle to propel itself. BMW: 1712219, 1712223, 12 13 1712219, 12 13 1712223, 12 13 7550012, 12 13 7551049, 12 13 7551260, 12 13 7562743, 745716, 745716 12 13 7575010, 12 13 7594596, 12 13 7594937, 12 13 7594938, 12 13 8616153, 7550012, 7551049, 7551260, 7564456773 7,575,010, 7,594,596, 7,594,937, 7,594,938, 8,616,153 WILMINK-GROUP: WG1012182, WG1012350, WG1054396, WG1428141, WG1428142, WG1440733, WG1487391, WG1487605, WG1496607, WG1496608, WG1496730,.