The Freightliner and Detroit 13.2 Inch Long SCR Inlet and Outlet Temperature Sensor is a reliable and efficient solution for maintaining proper ATS functionality without compromising fuel consumption. This sensor, sold individually, is directly replaceable with OE sensors and has been rigorously tested and accredited by third-party organizations. With a length of 21 inches and dimensions of 1.56 inches wide and tall, it is easy to install and fits most Freightliner and Detroit makes and models. Designed to meet EPA 10 exhaust emission norms, this sensor is a practical choice for ensuring environmental compliance and optimal performance. Direct OE replacement numbers include A6805402017, A6805401917, and A6805402417.