BMW E46 3-Series O2 Sensor Pre Cat OEM 11787523434 or 11787523435 (03/2003-2006)

Product Description

Enhance your BMW E46 3-Series performance with the superior quality OEM O2 Sensor, designed specifically for models manufactured between 03/2003 and 2006. This precision-engineered oxygen sensor from Bosch ensures optimal functionality and longevity for your vehicle. Made by Bosch OEM.BMW has now superseded this item to one single Bosch part for both locations.This pre-catalyst O2 sensor features a dual application, available in two part numbers, allowing you to select the perfect fit for your car:

Part # 11 78 7 523 434: Designed for the front exhaust manifold.

Part # 11 78 7 523 435: Designed for the rear exhaust manifold.

Replacing a faulty oxygen sensor is crucial for maintaining engine efficiency and reducing emissions. A new O2 sensor can significantly enhance the performance of your BMW, leading to sharper throttle response and improved fuel economy. Here’s how:

Improved Fuel Economy: A functioning O2 sensor helps regulate the air-fuel mixture, ensuring your engine runs efficiently, which can lead to decreased fuel consumption.

Reduced Emissions: Keeping your O2 sensor in top condition minimizes harmful emissions, contributing to a cleaner environment and ensuring your vehicle remains compliant with emissions standards.

Buyers Note: This sensor only fits E46 models from 03/2003-2006. It is important to note that it does not fit vehicles equipped with the M56 Super Low Emissions Engine. If you're experiencing issues with fuel efficiency or engine performance, consider replacing your old O2 sensor with this reliable OEM part.Trust Bosch, a leading name in automotive components, for increased reliability and peace of mind. Ensure your BMW E46 delivers peak performance by upgrading to this essential part today!