Dinex Emissions Temperature Sensor for DOC Outlet, Freightliner/Detroit, 21.00in. This sensor is designed as a direct replacement for OEM exhaust gas/DPF temperature monitoring at the DOC outlet on Freightliner and Detroit diesel applications. It provides the vehicle control system with reliable exhaust gas temperature feedback required for accurate aftertreatment system (ATS) regulation and for initiation and management of active regeneration events. The part is engineered and tested to match OE temperature response characteristics and fitment, and it has been validated at the Dinex test center and by independent third parties to confirm performance and interchangeability. Intended for use with EPA-regulated aftertreatment systems, the sensor supports normal ATS operation without compromising fuel consumption by providing the temperature inputs the engine electronic control unit (ECU) needs to correctly time and execute regeneration and other ATS functions. Installation is straightforward and follows standard sensor replacement procedures; the product is offered with a one-year warranty. For fleet operations, the measurable value of maintaining correct temperature sensing is twofold: it enables controlled regeneration cycles to occur when required and it helps protect downstream components by ensuring temperature thresholds are accurately reported to the ECU. That accuracy reduces the likelihood of missed or mistimed regenerations and helps maintain optimal ATS performance, which in turn supports predictable vehicle uptime and scheduled maintenance intervals. The sensor is documented as a direct OE-equivalent replacement for known Freightliner/Detroit OE numbers and is manufactured to meet applicable emission era specifications.