Nox Sensor MAN 51.154080015

Syhower sensor nox  MAN inlet nox sensor 51.154080015 .Located in the exhaust stream before the SCR catalyst, the NOx sensor provides real-time measurements of NOx and O₂ concentrations. This data is transmitted to the ECU via the CAN bus, enabling the calculation of the appropriate AdBlue® injection quantity. Controlled urea dosing supports the chemical reaction within the SCR system that converts NOx into harmless nitrogen and water, thereby ensuring system operation and compliance with emissions standards This diesel NOx sensor, offered at a competitive price, delivers high performance and reliability, making it an effective component for optimizing SCR system operation.

Product Parameter (Specification)

Product Feature And Application

Product Features

1) MAN nox sensor 51.154080015 . This sensor enables real-time, accurate measurement of nitrogen oxide (NO and NO₂) concentrations in the vehicle exhaust stream. The resulting data is essential for the engine control unit (ECU) to precisely regulate the Selective Catalytic Reduction (SCR) system, effectively lowering NOx emissions and ensuring compliance with stringent standards such as Euro 6. Designed for robustness, it delivers good durability and consistent performance, thereby supporting both emission regulation adherence and optimized engine operation.

2)The MAN NOx Sensor is a heated, high-precision component designed for durable performance in modern emission control systems. It plays an essential role in enabling accurate emissions monitoring, efficient SCR (Selective Catalytic Reduction) system operation, and reliable vehicle diagnostics in compliant MAN vehicles .

Equipped with an integrated heating element, the sensor rapidly reaches and maintains its optimal operating temperature—approximately 300 °C—shortly after engine start-up. This ensures consistent and accurate measurement of nitrogen oxide (NOx) concentrations from the beginning of a drive cycle, independent of external exhaust gas temperatures . By providing real-time data to the engine control unit (ECU), it supports precise AdBlue® dosing, which helps lower NOx emissions and maintain conformity with standards such as Euro V/6.

Application：

The NOx sensor in MAN trucks is a critical component within the Selective Catalytic Reduction (SCR) system, primarily responsible for ensuring compliance with emission standards like Euro 6 .

Its main applications can be summarized as follows:

1) Emission Concentration Monitoring

The sensor is primarily responsible for detecting the concentration of nitrogen oxides (NOx) and oxygen in the exhaust stream. It is usually mounted in the exhaust system, commonly downstream of the SCR catalyst.

2) Urea Injection Regulation

Using real-time NOx concentration data transmitted to the engine’s Electronic Control Unit (ECU), the system calculates and accurately adjusts the dosage of Diesel Exhaust Fluid (urea) injected into the SCR system. This closed-loop control ensures efficient and optimised NOx reduction.

3) System Diagnostics & Engine Protection

The sensor continually checks exhaust emissions for compliance. Should NOx levels persistently exceed permitted limits, it provides data prompting the ECU to log a fault code and—if necessary—initiate engine power limitation, thereby encouraging timely maintenance and preventing excessive emissions.

This sensor is critical for enabling vehicles such as the MAN TGX to comply with contemporary emission regulations.

Why choose us?

1) We have invested over RMB 100 million in a production facility partnered with a defense-industrial enterprise and maintain our own core in-house R&D team dedicated to proprietary technology development.

2) We have established a direct "handshake" protocol with OEMs, ensuring complete data compatibility and authentic signal transmission. Unlike some suppliers who reuse outdated components to simulate virtual signals—a practice that can lead to increased fuel consumption, diminished engine power, and compromised product effectiveness—our approach guarantees integrity and performance.

3)  The ceramic sensing element within the probe offers superior heat resistance and reduced susceptibility to water-induced cracking. Our sensor withstands temperatures up to 850°C, significantly exceeding the typical 600°Climit of competing products.

Production Details