New Product Launch: Dodge RAM 2500 / 3500 NOx Sensor (OE 4326873)

We are pleased to announce the release of our newest emission-control component: the NOx sensor for Dodge RAM 2500 and RAM 3500 heavy-duty pickups, built to OE reference number 4326873. This nitrogen oxide sensor is a direct-fit replacement for the SCR (Selective Catalytic Reduction) after-treatment system on 6.7L Cummins turbo diesel trucks, and it is now available for distributors, repair shops and fleet maintenance programs worldwide.

Why the NOx Sensor Matters So Much

On a modern heavy-duty diesel truck, the NOx sensor is not a peripheral accessory — it is the feedback loop that keeps the entire emission system legal, efficient and durable. When this sensor degrades, the consequences reach far beyond a single fault code.

• Regulatory compliance: Nitrogen oxides are one of the most strictly regulated diesel emissions. The NOx sensor is the component that proves the vehicle is meeting EPA / Euro emission limits in real driving conditions.
• SCR dosing accuracy: The sensor continuously reports NOx concentration to the engine control unit, which calculates the exact Diesel Exhaust Fluid (DEF) quantity to inject. A tired sensor causes over-dosing (wasted DEF, crystallisation, higher running cost) or under-dosing (NOx breakthrough, failed emissions test).
• Preventing derate and downtime: Incorrect NOx readings trigger torque derate, speed limitation or a no-start condition after a defined number of key cycles. For a working RAM 2500 / 3500, that means a truck parked at the roadside instead of earning revenue.
• Protecting the SCR catalyst: Accurate readings keep the catalyst inside its optimum temperature and ammonia-slip window, which extends the service life of a component that costs far more than the sensor itself.
• Fuel and DEF economy: A healthy sensor lets the ECU trim injection strategy correctly, which measurably improves diesel consumption and DEF usage per mile.

Core Functions of the NOx Sensor

Product Specifications

Applications and Target Markets

• Heavy-duty pickup service and repair workshops
• Fleet maintenance and refurbishment programmes
• Diesel parts distributors and wholesale buyers
• Aftermarket brands requiring private-label packaging

Quality Assurance and Supply Capability

Every unit is assembled in a controlled production line, calibrated on a bench with reference gas and validated for heater resistance and signal response before packing. We hold stable stock of the 4326873 reference for repeat orders, support mixed-model consolidation in one shipment, and can ship against neutral or customer artwork. Technical data sheets, connector pin-outs and fitment notes are available for your engineering team on request.

Order Information

The Dodge RAM 2500 / 3500 NOx sensor (OE 4326873) is ready for quotation now. Tell us your target quantity, packing requirement and destination port, and our sales team will reply with pricing, lead time and shipping options within one working day. Sample orders are welcome for evaluation and bench testing.