Genuine Bosch Ignition Contact Set 1987231004

The ignition contact set, commonly referred to as the points, plays a crucial role in the ignition system of older vehicles. It consists of a pair of metal contacts that open and close to control the flow of electrical current to the ignition coil. When the engine is cranked, the points close, allowing the current to build up in the coil. Once the current reaches a certain level, the points open, causing the magnetic field in the coil to collapse. This sudden change generates a high-voltage spark that is sent to the spark plugs, igniting the air-fuel mixture in the engine's cylinders, ultimately powering the vehicle. Proper functioning of the ignition contact set is vital for optimal engine performance. Over time, the points can wear down, leading to poor ignition timing, misfires, and reduced engine efficiency. Regular maintenance, including checking and adjusting the gap between the contacts, is essential to ensure they operate smoothly. In modern vehicles, electronic ignition systems have largely replaced contact sets, but understanding their function remains important for those working with classic cars or older models that still utilize this technology.