Air and Fuel› Oxygen Sensors, Controllers and Components

BMW /

Front Oxygen Sensor Bank 1

$126.99

SKU: 11787558055

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The BMW 11787558055 is a front oxygen sensor designed for bank 1, upstream of the catalytic converter. This sensor measures exhaust oxygen levels to help the vehicle's computer adjust the air/fuel ratio and control emissions. A functioning oxygen sensor is crucial for optimal engine performance and fuel efficiency.

A degraded oxygen sensor can lead to reduced engine performance, decreased fuel economy, increased emissions, and can trigger the Check Engine Light. This component is essential for passing emissions tests and maintaining proper vehicle operation.
Show original supplier description
The BMW 11787558055 is a 1400mm length upstream oxygen sensor for bank 1 (cylinders 1-3) located before the catalytic converter. This critical component measures the oxygen content in the exhaust gases, providing vital data to your BMW's Engine Control Unit (ECU) for precise air-fuel ratio adjustments. Proper functioning of this sensor is essential for optimizing engine performance, ensuring fuel efficiency, and minimizing harmful tailpipe emissions. Symptoms of a failing oxygen sensor include reduced fuel mileage, failed emissions tests, illuminated Check Engine Light, and poor overall driveability. Replacing a worn-out sensor with this Genuine BMW part helps restore optimal engine function and prevent these issues. This upstream oxygen sensor is specifically designed for various BMW models, including the E60, E82, E88, E90, E91, E92, E93, and Z4 series, primarily with N52 3.0L or N54 3.0L engines. It is important to verify fitment for your specific vehicle's year, model, submodel, and engine to ensure compatibility.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandBMW /
Part Number11787558055
CategoryAir and Fuel

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Returns & Fitment

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Shipping

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