The Cummins Heavy Duty Nox Sensor with Outlet Sensor is a reliable and practical solution for your Cummins models. With its outlet sensor type and M20 by 1.5 thread size, it fits most Cummins models seamlessly. This sensor is designed to provide accurate readings and ensure optimal performance. It is compatible with various OEM and aftermarket numbers, including 2894944RX, 2871978, 2872236, 2894939, 2894939RX, 2894944, 4984053, 4984576, and 904-6004. Trust this heavy-duty sensor to deliver exceptional results and maintain the efficiency of your Cummins engine.