Ensure Accurate Emissions Data with Cummins QSB 6.7L ISX15 NOx Sensor 2013–2021 OEM 4326862
What is it?
The NOx Sensor (OEM 4326862) is a precision component designed for the Cummins QSB 6.7L and ISX15 engines covering model years 2013–2021. It detects nitrogen-oxide levels in the exhaust stream, powering your after-treatment system’s emissions control logic and maintaining compliance.
Why choose this sensor?
Built with exact fitment for the Cummins QSB 6.7L and ISX15 engines (2013–2021), this OEM sensor restores reliable NOx measurement. A faulty or degrading sensor can lead to engine derates, emissions faults, or failed testing—this unit ensures accurate feedback and stable system operation.
Key Benefits
✅ Delivers precise NOx measurements for emissions control accuracy
✅ Helps prevent fault codes and engine derate issues
✅ Constructed to handle high heat and heavy-duty service environments
✅ Direct-fit replacement—no modifications needed
✅ Complies with OEM standards for performance and durability
Applications
Ideal for trucks and equipment equipped with Cummins QSB 6.7L or ISX15 engines (2013–2021) that rely on accurate emissions monitoring and dependable after-treatment performance.
Installation Notes
Before installing, ensure the exhaust path ahead of the sensor is clean and free of soot or debris. Replace any worn sealing washers and ensure proper electrical connector engagement. After installation, clear any fault codes and verify sensor output in the engine diagnostics to confirm normal operation.
Final Thoughts
If your system is showing emissions faults, inconsistent NOx readings, or engine derate alerts, installing the OEM 4326862 NOx Sensor is the precise solution. With direct-fit engineering and dependable performance, it keeps your emissions system on track and your engine ready for the road.