BMW Oxygen Sensor - Genuine BMW 11787529980

Ensure optimal engine performance and emissions compliance with this **Genuine BMW Oxygen Sensor - 11787529980**. This authentic BMW component is the precise **Upstream Right** sensor (for cylinders 1-4, before the catalytic converter) designed to accurately monitor exhaust gas oxygen levels. Its precise readings are crucial for your Engine Control Unit (ECU) to maintain the ideal air-fuel mixture, resulting in efficient combustion, improved fuel economy, and reduced harmful emissions.

As a Genuine BMW part, you can trust in its perfect fit, superior quality, and reliable operation. This sensor is specifically engineered for:

* **BMW 545i:** 2004-2005 (Manual RWD Sedan 4.4L V8 N62 Gas)
* **BMW 645Ci:** 2004-2005 (Manual RWD Convertible/Coupe 4.4L V8 N62 Gas)

Restore your BMW's factory-intended performance and efficiency with the correct, durable, and reliable original equipment oxygen sensor.