Jaguar X-Type X400 Exhaust Lambda Oxygen Sensor 2.5 V6 Petrol 1X43-9F472-AD

Jaguar X-Type X400 Exhaust Lambda Oxygen Sensor 2.5 V6 Petrol is an original component from the Lambda sensors and O2 sensors group, designed for operation in the exhaust system of a 2.5 V6 petrol engine. It ensures precise measurement of exhaust gas composition in the front part of the system, which allows the engine control unit to properly dose fuel and maintain stable engine operation.

Specifications and technical data

• SKU: 1X43-9F472-AD
• Mark: Jaguar
• Condition: Used
• OEM Part Number: 1X43-9F472-AD
• Substitutable numbers: 1X439F472AD, 1X43-9F472-AD, C2S51801
• Location on the vehicle: Front
• Fuel type: Petrol
• Category: Oxygen Sensors

Purpose and function in the exhaust system

The presented lambda sensor is dedicated to Jaguar X-Type X400 models with a 2.5 V6 petrol engine and operates in the front part of the exhaust system. Positioned before the catalytic converter, it monitors the air-fuel mixture composition, transmitting a signal regarding oxygen content in the exhaust gases to the engine control unit. This enables the maintenance of the correct air-fuel ratio, which influences engine refinement, fuel consumption, and exhaust emission levels.

Key advantages of using an original Jaguar sensor

The original lambda sensor from this series has been designed specifically for the operating parameters of the V6 engine in the Jaguar X-Type, which translates into:

• a stable output signal across the full range of engine loads,
• consistency with factory engine control unit maps,
• proper cooperation with the ignition and injection systems,
• reduction of the risk of diagnostic errors related to incorrect exhaust gas composition readings. Choosing an original component from the Lambda sensors and O2 sensors category allows you to avoid problems typical of replacements with different electrical and thermal characteristics.

Vehicle placement and fuel type

The sensor operates in the front part of the exhaust system, in a zone with high temperatures and variable exhaust gas flow. It has been constructed for engines powered by petrol, which is significant for the heater characteristics, measurement range, and resistance to typical contaminants found in petrol units. Correct placement on the vehicle is crucial for rapid heating of the sensing element and obtaining reliable data in the initial phase of engine operation.

Condition and service application

The item comes from dismantling and is offered as a used lambda sensor, which is a cost-effective service solution for users looking for original components at a reasonable price. This type of part is suitable both for replacing a damaged sensor and for diagnosing problems with the air-fuel mixture, rough engine idle, or increased fuel consumption.

Selection support and additional materials

When selecting a lambda sensor for a specific engine version, it is worth using the manufacturer's markings and vehicle data to ensure full electrical and mechanical compatibility. If you want to better understand why in many cases it pays to choose a used original instead of a new replacement, check out the article Spider crack on the windshield? Why it is better to choose a used original with the manufacturer's logo when replacing, which discusses a practical approach to choosing OEM parts. If you are planning a comprehensive repair or upgrade of the exhaust system area in your Jaguar and need other components from the same group, such as additional sensors, O2 sensors, or related control elements, check the available parts in the Jaguar Lambda sensors and O2 sensors category.