This is a genuine Cummins OEM Nox Sensor, model number 4326874RX. It is a high-quality performance part that is perfect for those who are looking to upgrade their vehicle's induction system. The sensor is compatible with nitrous oxide and is designed to provide accurate readings for optimal performance.

The brand of this part is Cummins, a trusted and reliable name in the automotive industry. It comes with no warranty, but this is to be expected given the nature of the product. The manufacturer part number is 4326874RX, and it is a great choice for those who want to improve their vehicle's performance.