The Cummins Heavy Duty NOx Sensor with Outlet Sensor is a practical and reliable solution for your Cummins models. With its outlet sensor type and M20 by 1.5 thread size, this sensor fits most Cummins models seamlessly. It is sold individually and is compatible with OEM and aftermarket numbers such as 3687334, 2872027, 2872081, and 2894941. Trust in the quality and performance of this sensor to ensure optimal functionality and efficiency for your heavy-duty vehicles.