The Bosch Knock Sensor - 0261231215 is a high-quality automotive sensor designed to detect engine knock or detonation. It is a crucial component in modern engine management systems, providing accurate feedback to the engine control unit (ECU) to adjust ignition timing and prevent engine damage. This knock sensor is compatible with a wide range of vehicles and is built to withstand harsh conditions, ensuring reliable performance and long service life. It is a direct replacement for the original equipment and is easy to install. The Bosch Knock Sensor - 0261231215 is an essential part for maintaining the optimal performance and efficiency of your vehicle's engine.