Kubota 1J508-19360 NOx Sensor Assembly

The Kubota 1J508-19360 is a nitrogen oxide (NOx) sensor designed for pre-selective catalytic reduction (Pre-SCR) monitoring in Tier 4 Final / Stage V emission systems. It provides real-time exhaust gas concentration data to the engine control unit for precise urea dosing and emissions compliance. Superseded by part number 1J601-19360, this sensor features a planar sensing element with integrated heater control and a sealed 4-pin connector. It is engineered for direct replacement on Kubota V3800-CR-TI-EV13 diesel engines equipped in M7 series agricultural tractors. The probe thread conforms to M18 x 1.5 standard for exhaust manifold mounting.