Your Professional NOx Sensor(For BENZ)Supplier!
Wenzhou Yili Automotive parts Technology Co., Ltd. is a modern company specializing in R&D and production of oxygen sensors, temperature control switches, ABS wheel speed sensors, camshaft position sensors, crankshaft position sensors, water temperature sensors, oil pans, and intake manifolds. And has a complete and scientific quality management system, advanced testing platform and strong R&D team.
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NOx Sensor For BENZ 5WK9 7332A/A0101531728
Connector Type:Square 4-pin checkered grey. Probe type:Small Head. Insulating sleeve:Black. Add to Inquiry -
NOx Sensor For BENZ 5WK9 6642B/A0081539828/004/ A0101539328
Probe type:Big Head. Insulating sleeve:Black. Applicable voltage:24V. Add to Inquiry -
NOx Sensor For BENZ 5WK9 6659C/A0101539628/001
Connector Type; Square 4-pin grey. Probe type;Small Head. Insulating sleeve;Black. Add to Inquiry
Why Choose Us
Professional team
We have a professional R&D team composed of experienced engineers and scientific researchers. The team can continuously invest resources to carry out the research and development of new technologies and new materials, and continuously launch products with better performance and better market demand.
Advanced equipment
We are equipped with a full set of automated production equipment, a complete sensor R&D platform and dedicated test bench testing equipment to provide solid technical support for product development and quality assurance.
Quality control
From raw material procurement to product production, assembly, testing, packaging and other links, we have established detailed quality standards and inspection processes. Through strict quality control, we ensure that every product shipped meets high quality requirements.
OEM&ODM service
We have a complete and scientific quality management system, advanced testing platform and strong R&D capabilities, and can provide customers with high-quality OEM and ODM service solutions.
NOx Sensor (For BENZ) Specification
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Applicable Model |
5WK9 7332A A0101531728 |
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Connector Type |
Square 4-pin checkered grey |
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Probe type |
Small Head |
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Insulating sleeve |
Black |
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Applicable voltage |
24V |
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Mounting hole type |
Round ears |
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Back cover type |
Plastic |
Benefits of NOx Sensor (For BENZ)
Contribution to compliance with current and future emission targets as well as on-board diagnostic requirements
High measuring accuracy, fast operational readiness, good signal dynamics and continuous signal availability
Flexible to use thanks to CAN interface
Coating on the sensor element increases resistance to external influences such as thermal shocks
Retaining screw for quick and easy installation
Simultaneous, continuous, selective ammonia signal, NOx signal, and O2 signa
NOx is a harmful gas produced during combustion in internal combustion engines that contributes to air pollution and smog formation. The NOx sensor works by detecting NOx levels in the exhaust stream and providing feedback to the engine control system, which then adjusts fuel injection and exhaust gas recirculation rates to reduce NOx emissions.
The NOx sensor is a key part of this system, which also includes the SCR catalyst, Diesel Particulate Filter (DPF), and turbocharger amongst others. If the NOx sensor detects too many NOx gases being emitted, it sends that information to the SCR system, which then adjusts the output to a level that’s compliant with emission regulations.
In modern diesel engines, NOx sensors are often placed downstream of diesel particulate filters and selective catalytic reduction (SCR) systems to further reduce NOx emissions. NOx sensors play a vital role in reducing harmful emissions from internal combustion engines and meeting environmental regulations.

The Basic Principle Of NOx Sensor (For BENZ)

The NOx sensor is made up of a Nernst cell with a current flowing through. This corrects the air/fuel ratio to λ=1. A second cell, usually made of ceramic with a layer of rhodium, breaks down the oxides of nitrogen into nitrogen and oxygen. The NOx controller – usually closely positioned to the NOx sensor – calculates the level of oxides of nitrogen present in the exhaust gas, and sends that data to the SCR controller. The SCR controller then adjusts the amount of diesel exhaust fluid injected into the SCR catalyst, which in turn transforms excess oxides of nitrogen into water and nitrogen.
Our Services
Pre-Sale Service
Provide detailed introductions of our products, assist customers in selecting appropriate options, and recommend products that best meet their needs.
In-Sale Service
Deliver high-quality products with efficient shipping processes while keeping customers informed throughout all stages of production.
After-Sale Service
Ensure prompt responses to any inquiries or issues that may arise.
Packaging and Shipping
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Packaging |
Neutral packaging, if you want to design packaging, please feel free to contact us. |
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Transportation methods |
Road transport, rail transport, sea transport, air transport |
Advantage








Our Certificate
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We're professional nox sensor(for benz) manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade nox sensor(for benz) made in China here from our factory.
BMW 24117613253, Citroen Oxygen Sensor, Nissan Teana Oxygen Sensor



