{"product_id":"dorman-904-6031-nitrogen-oxide-nox-sensor-scr-catalyst-inlet","title":"Dorman 904-6031 Nitrogen Oxide (NOx) Sensor - SCR Catalyst Inlet","description":"\u003ch2\u003eDorman 904-6031 NOx Sensor for Emissions Control\u003c\/h2\u003e\u003cp\u003eDorman 904-6031 is a specific-fit nitrogen oxide (NOx) sensor made to match the original equipment sensor on select vehicles. It helps restore accurate NOx detection so the emissions system can operate as intended and remain in compliance with emissions regulations.\u003c\/p\u003e\u003cp\u003eBuilt for direct replacement use on select vehicle applications, this silver, plain-finish sensor features a black oval female connector, 4 terminals, and a 620 wire harness length. If you are searching for a Dorman NOx sensor for a specific make and model, part number 904-6031 is an OE-style replacement to verify against your vehicle’s original sensor.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: 904-6031\u003c\/li\u003e\n\u003cli\u003eNitrogen oxide (NOx) sensor for emission control systems\u003c\/li\u003e\n\u003cli\u003eSpecific fit for select vehicle years, makes, and models\u003c\/li\u003e\n\u003cli\u003eSilver housing with plain finish\u003c\/li\u003e\n\u003cli\u003eBlack oval female connector with 4 terminals\u003c\/li\u003e\n\u003cli\u003eWire harness length: 620; wire gauge: 22\u003c\/li\u003e\n\u003cli\u003ePackage contents: 1 sensor with module\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman NOx sensor is engineered to match the original equipment sensor used on certain vehicles, helping restore nitrogen oxide monitoring after a failed or inaccurate sensor. Accurate NOx readings are important for diesel emissions control systems, especially when diagnosing faults that can trigger warning lights or emissions-related drivability concerns. For buyers comparing Dorman 904-6031 against OE references, this sensor cross-references 8CL001 and 577.96600 for the same application.\u003c\/p\u003e\u003cp\u003eUse this part when you need a direct replacement NOx sensor for a compatible vehicle application such as a Ford F-250, Ford F-350, or Ford F-450 where the original sensor has failed and emissions monitoring needs to be restored. Always confirm connector shape, terminal count, and harness length before ordering.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Solve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNOx sensor fault codes\u003c\/li\u003e\n\u003cli\u003eInaccurate nitrogen oxide readings\u003c\/li\u003e\n\u003cli\u003eEmissions system warning lights\u003c\/li\u003e\n\u003cli\u003eFailed emissions inspection due to sensor issues\u003c\/li\u003e\n\u003cli\u003eRestoring proper emissions monitoring on select Ford truck applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the connector style, terminal configuration, and harness length against the original sensor before installation. This is a specific-fit part, so confirm year, make, model, and sensor location for your vehicle. For Ford F-250, Ford F-350, and Ford F-450 applications, compare the original part number and connector details to ensure the correct replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman manufactures this NOx sensor to match OE fit and function on the listed applications. Part number 904-6031 is built to restore nitrogen oxide detection for emissions-system service on select vehicles.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52787927580853,"sku":"FKCX-904-6031","price":399.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_9046031_Ang.jpg?v=1783752946","url":"https:\/\/www.partcatalog.com\/products\/dorman-904-6031-nitrogen-oxide-nox-sensor-scr-catalyst-inlet","provider":"PartCatalog","version":"1.0","type":"link"}