Nox Sensor

The Cummins NOx (Nitrogen Oxide) Sensor (OEM 4326869) is a replacement exhaust emissions sensor designed to monitor nitrogen oxide levels within the exhaust system of compatible Cummins diesel engines. The sensor provides the engine and aftertreatment control system with information needed to monitor emissions performance and manage the selective catalytic reduction (SCR) system.

Designed for operation in the demanding environment of a modern diesel exhaust system, the sensor is built to withstand elevated temperatures, vibration and prolonged exposure to exhaust gases. It is used primarily with Cummins ISB/QSB 6.7-litre applications and selected other Cummins heavy-duty engine systems, providing a direct replacement for a worn or failed NOx sensor.

FUNCTION AND OPERATION

• Measures nitrogen oxide (NOx) concentration in the engine exhaust.
• Provides emissions data to the engine and aftertreatment control system.
• Supports correct operation of the SCR emissions system.
• Helps the engine management system monitor exhaust emissions performance.
• Designed for installation within the exhaust aftertreatment system.
• Replaces a failed, contaminated or damaged NOx sensor.

TECHNICAL DETAILS

• Brand: Cummins
• OEM Number: 4326869
• Part Type: NOx / Nitrogen Oxide Sensor
• Sensor Application: Diesel exhaust aftertreatment
• Electrical System: 12V application
• Typical Position: Aftertreatment / downstream exhaust sensor
• Cross Reference: Cummins 2872947
• Compatible Engine Applications: Selected Cummins ISB and QSB 6.7-litre engines and other compatible heavy-duty applications

TYPICAL APPLICATIONS

• Cummins ISB 6.7-litre diesel engines
• Cummins QSB 6.7-litre diesel engines
• Selected Cummins heavy-duty diesel applications
• SCR-equipped exhaust aftertreatment systems
• Construction, industrial and commercial diesel equipment

IMPORTANT INFORMATION

NOx sensors are application-specific components, and the correct sensor position, calibration and electrical connection are important for proper operation. The 4326869 reference is associated with specific Cummins aftertreatment applications, so the OEM number should be checked against the engine and existing sensor before ordering.

Always check the OEM number and machine or engine model before fitting to ensure this sensor is suitable for your particular application.

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery*
£11.95 or FREE for orders over £150
Orders placed before 4pm Monday to Friday will be delivered on the next business day.
Orders placed after 4pm on Friday will be delivered the following Tuesday.
*Next day delivery applies to stocked items only. Availability can be found on the product pages.

Premium Delivery*
£30.00 for delivery before 10:30am
£25.00 for delivery before 12:30pm
*Premium delivery applies to stocked items only. Availability can be found on the product pages.

For all other countries, please click here for full delivery information.

**Separate carriage charges apply to bulk products such as 205L barrels.