The Genuine BMW Holder Plug Connection Oxygen Sensor - 61137841524 is a component used in BMW vehicles to securely connect the oxygen sensor to the engine. This holder plug is made with high-quality materials and is designed to fit perfectly with the oxygen sensor, ensuring a reliable connection. It is an essential part of the engine's emission control system, as the oxygen sensor measures the amount of oxygen in the exhaust and helps the engine adjust the fuel-to-air ratio for optimal performance and reduced emissions. This Genuine BMW holder plug is an authentic and reliable replacement part for maintaining the proper functioning of the oxygen sensor in your BMW vehicle.