Product Description:

 
Electronic Oxygen Sensor
OE NO.:   31380995 9487147 30774651  

Applicable vehicle type: For Volvo

An automotive oxygen sensor is an electronic sensor installed in the engine exhaust system to monitor the oxygen content in exhaust gases. Its English names are “Oxygen Sensor” or “Lambda Sensor.”

Based on operating principles and performance characteristics, automotive oxygen sensors are primarily categorized into the following types:

• Narrowband O₂ Sensor: Also known as the zirconia-type sensor, this is the most common variant. Its advantages include low cost and simple structure, but it features slower response times and provides feedback only near the stoichiometric ratio, unable to operate stably across a wide range of air-fuel ratios.
• Wideband Oxygen Sensor (Wideband O₂ Sensor): Also known as linear oxygen sensors or wide-range oxygen sensors, their core operates on electrochemical principles to measure air-fuel ratios. Wideband sensors continuously monitor oxygen levels across a broad air-fuel ratio range, with output voltage exhibiting a linear relationship to the air-fuel ratio.
• Titanium Dioxide (TiO₂) Sensor: Operates based on the principle that the resistance of titanium dioxide ceramic changes with oxygen concentration. At high temperatures, TiO₂ resistance increases as oxygen content rises and decreases as oxygen content falls. This sensor features a simple structure and low cost but exhibits slow response times and sensitivity to temperature variations. It is typically found only in early-generation vehicles and is now relatively uncommon.
• Heated Oxygen Sensor: Since oxygen sensors require high temperatures to function properly (typically demanding exhaust temperatures above 300°C), many modern sensors incorporate built-in heating elements (ceramic heaters). These rapidly heat the sensing element to operating temperature, enhancing response speed and detection accuracy during cold starts.
• Upstream and Downstream Oxygen Sensors: Vehicles equipped with multiple catalytic converters may feature several oxygen sensors. The upstream oxygen sensor (front sensor) is typically positioned before the three-way catalytic converter. It monitors exhaust composition entering the converter, providing feedback to the ECU to adjust fuel injection volume for closed-loop control. The downstream oxygen sensor (rear sensor) is located after the three-way catalytic converter and monitors the converter's efficiency.

These distinct oxygen sensor types serve specialized roles in automotive applications. Narrow-band sensors, favored for their low cost and proven technology, remain prevalent in most conventional vehicles. Broad-band sensors, however, are increasingly adopted in modern high-performance and fuel-efficient vehicles due to stricter emissions regulations and evolving engine technologies. Heated sensors enhance operational stability and response speed, becoming the standard design for modern oxygen sensors. The combination of upstream and downstream sensors is employed in some advanced vehicles for more precise emission control and fault diagnosis.

Multiply Brands Auto Parts We Offer:

Why choice us:

1. Industry Experience: 20 years of experience in the auto parts industry, with in-depth market and product knowledge.

2. Professional Team: A team of experienced experts who can professionally answer all customer inquiries about auto parts.

3. Direct Partnerships: Direct partnerships with multiple auto repair shops, offering first-hand industry feedback and technical support.

4. High-Quality Products: Providing high-quality auto parts to ensure reliability and durability.

5. Comprehensive Inventory: A wide range of product lines and ample inventory to meet diverse customer needs.

6. Quick Response: Offering rapid response services to quickly address customer questions and needs.

7. Customized Services: Providing customized part solutions to meet specific vehicle or customer requirements.

8. Technical Support: Offering professional technical support and installation guidance.

9. After-Sales Service: A strong after-sales service network to ensure customers receive necessary support after product use,If you have any questions after receiving the goods, please contact us in time and we will provide the best solution.

10. Price Advantage:Competitive pricing due to long-standing supply chain relationships.

11. Quality Assurance:All products go through strict quality control processes to meet industry standards.

12. Fast Shipping: Over 500000+ in stock, we can ship them in a short time.

Company Profile:

Beijing Huarui Jietong Trading Co., Ltd. has been engaged in the automotive aftermarket for 20 years and is a professional supplier of auto parts. Located in the capital of China, Beijing, we have factories in Beijing, Guangzhou, and Jiangsu, which enable us to meet our customers' demands for quality and quantity in a timely and efficient manner.
 

 
The company primarily focuses on accessories for Land Rover, Jaguar, and Volvo product series, including Air Conditioning Systems, Braking Systems, Driving Systems, Engine Systems, Cooling Systems, Auto Body Systems, Steering Systems, Suspension Systems, Transmission Systems, and other related parts. Facing the trend of economic globalization, our company is committed to bringing better products and services to the world, providing high-quality products and services for domestic and foreign enterprises and customers.
 
We welcome any inquiries and look forward to your contact.
 
 
 

 
 
 
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