{"product_id":"walker-250-24285-oxygen-sensor","title":"Walker 250-24285 Oxygen Sensor","description":"\u003ch2\u003eWalker Products OE Oxygen Sensor for Nissan and Infiniti\u003c\/h2\u003e\u003cp\u003eWalker Products OE Part Number 250-24285 is a heated oxygen sensor built for specific downstream applications on select Nissan and Infiniti vehicles. It is engineered as an OE-style replacement that delivers the ECU feedback needed for proper fuel control and emissions monitoring.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for downstream placement\u003c\/li\u003e\n\u003cli\u003eSpecific fit design for the listed vehicle applications\u003c\/li\u003e\n\u003cli\u003e4-wire configuration with 20-gauge wiring\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for application-specific connection\u003c\/li\u003e\n\u003cli\u003eWiring harness length: 32.99 in.; overall length: 36.54 in.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eWalker Products OE 250-24285 is designed for vehicles that rely on downstream oxygen sensor input to monitor exhaust efficiency and support emissions system diagnostics. This sensor is a direct-fit replacement for select 2001-2004 Infiniti QX4 and I35 models, plus 2001-2004 Nissan Pathfinder, Maxima, and Sentra applications listed below. For drivers searching for a downstream oxygen sensor for a 2002 Nissan Sentra, a downstream right oxygen sensor for a 2001 Nissan Pathfinder, or an OE replacement oxygen sensor for a 2002-2004 Infiniti I35, this part number matches the specified position and connector style.\u003c\/p\u003e\u003cp\u003eWalker Products OE focuses on original-equipment replacement coverage, with parts built for the exact application, fitment position, and ECU feedback requirements. The 250-24285 oxygen sensor is intended for downstream front, downstream right, downstream left, and downstream positions where listed, helping maintain accurate exhaust monitoring on the supported Nissan and Infiniti platforms. This part number 250-24285 is also a useful reference when cross-checking catalog listings for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light related to oxygen sensor performance\u003c\/li\u003e\n\u003cli\u003ePoor fuel economy caused by inaccurate exhaust feedback\u003c\/li\u003e\n\u003cli\u003eElevated exhaust emissions from a failing downstream sensor\u003c\/li\u003e\n\u003cli\u003eRough engine operation tied to sensor signal issues\u003c\/li\u003e\n\u003cli\u003eFault codes stored in the ECU for the affected sensor circuit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConfirm the exact year, make, model, and sensor position before ordering.\u003c\/li\u003e\n\u003cli\u003eMatch the connector shape, wire count, and threaded mounting style to the original sensor.\u003c\/li\u003e\n\u003cli\u003eInspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear before installation.\u003c\/li\u003e\n\u003cli\u003eUse the listed downstream position only where the fitment table specifies it.\u003c\/li\u003e\n\u003cli\u003eClear diagnostic trouble codes after installation and verify proper ECU feedback.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eWalker Products has supplied engine management and fuel system components since 1946 and operates as an Automotive ISO 9001\/TS 16949 certified company. The OE product line is built around application-specific fitment and diagnostic performance for the listed vehicles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits 2002-2004 Infiniti I35, downstream front\u003c\/li\u003e\n\u003cli\u003eFits 2002-2003 Infiniti QX4, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2002-2003 Nissan Maxima, downstream front\u003c\/li\u003e\n\u003cli\u003eFits 2002 Nissan Pathfinder, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2002 Nissan Sentra, downstream left\u003c\/li\u003e\n\u003cli\u003eFits 2002 Nissan Sentra, downstream\u003c\/li\u003e\n\u003cli\u003eFits 2001 Infiniti QX4, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2001 Nissan Pathfinder, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2001 Nissan Sentra, downstream right\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":51870203510965,"sku":"DKHD-250-24285","price":70.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25024285_Fro.jpg?v=1774891632","url":"https:\/\/www.partcatalog.com\/products\/walker-250-24285-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}