spark plug

The spark plug is a key component of the ignition system in gasoline engines and ignites the air-fuel mixture in the combustion chamber. It generates an electrical spark that starts combustion in the cylinder, thus providing the energy to power the vehicle.

During engine operation, the ignition coil transmits a high voltage to the spark plug. This creates a spark between the center electrode and the ground electrode, which ignites the fuel-air mixture in the combustion chamber. The precise timing of this spark is crucial for efficient combustion, optimal engine performance, and low fuel consumption.

Spark plugs consist of several precision-manufactured components, including the metal casing, the ceramic insulator, and the electrodes. Modern spark plugs often use high-quality materials such as nickel, platinum, or iridium electrodes, which ensure high temperature resistance and a long service life.

Because spark plugs are exposed to extreme temperatures, pressure loads, and electrical voltages, they are among the typical wear parts of an engine. Regular replacement ensures stable engine operation, clean combustion, and optimal engine performance.

At Autoteile Gossau, you'll find spark plugs for numerous vehicle makes and models, both original and high-quality aftermarket options. Benefit from the lowest prices in Switzerland, fast delivery, or convenient in-store pickup in Gossau with cash or card payment.