Dongfeng 3615710-TF620 NOx Sensor Assembly

This nitrogen oxide (NOx) sensor assembly is engineered for integration within Selective Catalytic Reduction (SCR) aftertreatment systems on heavy-duty commercial vehicles. The probe utilizes a ceramic sensing element to measure NOx concentration in exhaust gas streams, transmitting data via CAN protocol to the engine control unit (ECU) for precise urea dosing control. The sensor housing features a standard M18 x 1.5 mounting thread and a sealed 4-pin bayonet connector designed for harsh under-chassis environments. The assembly includes the probe, control module, and harness connector as a single service unit. It serves as a direct replacement for Dongfeng part numbers 3615710-TF620, 3615710-KM6H0, 3615710-T39H0, and cross-references Bosch 0281007921 / 0281007929 and Continental 5WK96765A. Primary applications include Dongfeng Yulong 8x4 (front four rear four) tractor and dump trucks equipped with Yuchai Euro IV/V or Cummins ISLe/ISX engines, as well as Dongfeng Tianlong and Dragon series. Also cross-compatible with Volvo FH/FM series and Renault DCI11 platforms utilizing the 3615710-TL100 / 3615710-T38H0 variants.