Sensor 5491422 – Reliable NOx Monitoring and Emission Control Support for Cummins Engine Systems
The Sensor 5491422 is a Nitrogen Oxide (NOx) sensor designed for compatible Cummins diesel engine systems. It monitors NOx levels in the exhaust stream and sends real-time data to the engine control module (ECM). This information helps the aftertreatment system manage emission control functions and maintain efficient engine operation. In addition, accurate NOx detection supports SCR system performance and helps maintain emission compliance.
🔩 Specifications
- Part Number: 5491422
- Product Type: NOx Sensor
- Application: For compatible Cummins diesel engine systems
- Function: Measures nitrogen oxide levels in exhaust gases
- Provides emission data feedback to the ECM
- Supports SCR and DEF control system operation
- Helps maintain accurate exhaust monitoring performance
- Suitable for compatible Cummins engine applications, including B4.5 and B6.7 engine platforms
- Intended for engine repair, replacement, and maintenance procedures
⭐ Key Features
- Provides accurate NOx measurement for diesel emission systems.
- Helps the ECM control DEF dosing and aftertreatment operation.
- Supports efficient SCR catalyst performance.
- Improves emission system monitoring accuracy.
- Withstands high exhaust temperatures and harsh operating conditions.
- Helps reduce warning signals caused by incorrect NOx readings.
- Provides a practical replacement solution for failed or damaged sensors.
⚙️ Technical Insights
The Sensor 5491422 plays an important role in modern diesel emission control systems. It detects nitrogen oxide concentration in the exhaust gas and transfers measurement data to the ECM. As a result, the engine control system can adjust DEF injection and SCR operation more accurately.
In addition, NOx sensors operate in extreme environments with high exhaust temperatures, vibration, chemical exposure, and continuous thermal cycles. Therefore, a properly matched sensor helps maintain stable signal output and reliable emissions control. Furthermore, replacing a faulty sensor can restore accurate exhaust monitoring and help resolve issues such as emission warning lights, incorrect NOx values, or aftertreatment system faults.
🛠 Application Scenarios
The Sensor 5491422 is suitable for compatible Cummins diesel engines used in trucks, construction equipment, agricultural machinery, generator sets, and industrial power systems. It is commonly installed in exhaust aftertreatment systems for NOx monitoring and is used during emission system repair, diagnostic procedures, and preventive maintenance.
Moreover, technicians can use this component to restore proper emission control performance after sensor aging, contamination, or electrical failure. Likewise, maintenance teams can select suitable Cummins emission system components to maintain reliable engine operation in commercial and heavy-duty environments.
📦 Availability
Available for your Cummins engine maintenance and replacement needs.
To ensure correct fitment with your Cummins engine configuration, please provide your engine model and serial number (ESN). Our support team is ready to assist with compatibility verification and help you find the correct component solution for your equipment.
