Vauxhall Insignia Lambda Sensor Oxygen Sensor Lambda Probe 55572548

Vauxhall Insignia Lambda Sensor Oxygen Sensor Lambda Probe is a precision exhaust system component from the Lambda sensors and O2 sensors category, designed for diesel engines. It is responsible for the accurate measurement of exhaust gas composition, which allows the engine control unit to maintain stable operation and proper combustion parameters. A used component of this type is a sensible choice for vehicle maintenance when you are looking for a proven solution at an attractive price.

Specifications and technical data

• SKU: 55572548
• Mark: Vauxhall (Genuine OE)
• Condition: Used
• OEM Part Number: 55572548
• Substitutable numbers: 55572548, 0281004161, 0 281 004 161
• Fuel type: Diesel
• Category: Oxygen Sensors

Purpose and function of the Diesel lambda sensor

The presented lambda sensor is dedicated to Diesel power units, where precise monitoring of exhaust gas composition across a wide range of loads is crucial. The sensor transmits information about the oxygen content in the exhaust gases to the engine control unit, which enables:

• maintaining stable engine operation under various load conditions,
• optimizing fuel dosage in diesel operation mode,
• supporting the proper operation of the exhaust gas treatment system,
• reducing smoke and improving the refinement of the power unit.

Thanks to this, the injection system can react to actual combustion conditions, which translates into more predictable vehicle behavior and better emission control.

Benefits of using a lambda sensor in Vauxhall vehicles

The lambda sensor in a Vauxhall diesel engine plays a vital role in precisely controlling the combustion process. A properly functioning O2 sensor helps to:

• maintain stable idle speed and smooth acceleration,
• reduce excessive fuel consumption resulting from incorrect dosage corrections,
• limit the risk of clogging exhaust system components,
• minimize the appearance of mixture-related errors in the control unit memory.

By choosing a used Diesel lambda sensor, you receive a component with factory operating characteristics that allows you to restore correct control parameters without the need for costly replacement of entire exhaust system assemblies.

Product characteristics and fitment

The offered O2 sensor belongs to the Lambda sensors and O2 sensors category, which means it is designed to operate in a demanding environment of high temperatures and variable exhaust flow conditions. The sensor's design is adapted to work with the control electronics used in Vauxhall vehicles, which facilitates integration with the existing wiring harness and control unit software.

Before installation, it is worth verifying compatibility with the specific engine version and the exhaust system used, using data such as the OEM part number, interchangeable numbers, or the SKU designation available in the technical specifications section. This helps to avoid problems with thread fitment, cable length, or the type of electrical connector.

Component condition and service application

The product is offered as a used component, which in practice means it comes from dismantling and can be a cost-effective solution for routine repairs and exhaust system diagnostics. This type of lambda sensor will prove useful for, among other things:

• clearing errors related to incorrect exhaust gas composition,
• restoring proper engine operation after exhaust system modifications,
• comparative testing during advanced diagnostics.

For workshops and individual users, this is a way to reduce service costs while maintaining functionality consistent with the vehicle manufacturer's requirements.

Expanding the exhaust measurement system in Vauxhall

If you are planning a comprehensive repair or upgrade of the exhaust system area in your Vauxhall and need other components from the same group, such as additional sensors before and after the catalytic converter, O2 sensors working with the particulate filter, or sensors monitoring exhaust gas composition in different sections of the system, check the available parts in the Vauxhall Lambda sensors and O2 sensors category.

More about used electronics and sensors

When choosing used sensors and measuring components, it is worth knowing the basic principles of selection and verifying their efficiency. Practical tips on using used automotive electronics, including sensors, can be found in the article The second life of electronics – when is it worth choosing used engine control units, comfort modules, and parking sensors?, which will help you better plan repairs and upgrades in your vehicle.