{"product_id":"maxfavor-oxygen-sensor-kit-for-toyota-tundra-sequoia-4-7l-4-piece-oe-fit-upstream-and-downstream-replacements","title":"Maxfavor Oxygen Sensor Kit for Toyota Tundra \u0026 Sequoia 4.7L (4-Piece) — OE-fit upstream and downstream replacements","description":"\u003cp\u003e\u003cstrong\u003eMAXFAVOR 4-piece oxygen sensor kit replaces upstream 234-4169 and downstream 234-4162 sensors for Toyota Tundra (2000–2002) and Sequoia (2001–2004) 4.7L 4WD engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis complete sensor set gives you the four oxygen sensors commonly required when repairing or restoring the exhaust sensing system on select Toyota V8 models. The kit includes two upstream (pre-catalyst) and two downstream (post-catalyst) sensors built to match OE thread and connector patterns listed in the fitment references. It’s intended as a direct-fit replacement when your vehicle shows sensor-related codes or when performing a thorough exhaust tune-up.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these sensors match my Toyota’s original equipment?\u003c\/h3\u003e\n\u003cp\u003eMAXFAVOR sensors are manufactured to correspond with the referenced OE part numbers and connector styles so they install in the same locations as factory units. The listing includes multiple OEM cross-references to help you confirm compatibility before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUpstream part number reference: 234-4169 (x2).\u003c\/li\u003e\n  \u003cli\u003eDownstream part number reference: 234-4162 (x2).\u003c\/li\u003e\n  \u003cli\u003eCross-reference OEM numbers included for visual verification.\u003c\/li\u003e\n  \u003cli\u003eDesigned for Toyota Tundra 2000–2002 and Sequoia 2001–2004 4.7L 4WD.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before I install the replacement sensors?\u003c\/h3\u003e\n\u003cp\u003eBefore installing, compare the new sensors to your removed units for thread size, connector type and wire length. Also verify your vehicle year and drivetrain against the fitment notes to avoid mismatch; many Toyota models use similar-looking sensors that are not interchangeable.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm sensor plug matches your vehicle’s wiring harness.\u003c\/li\u003e\n  \u003cli\u003eCheck thread profile and gasket\/seat type visually.\u003c\/li\u003e\n  \u003cli\u003eClean the threaded port to ensure a proper seal before installation.\u003c\/li\u003e\n  \u003cli\u003eCompare wire routing to avoid heat or chafe points.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install the MAXFAVOR oxygen sensors safely?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward with basic tools and a proper socket: remove the old sensor, clean the port, and hand-start the new sensor to avoid cross-threading. Tighten just enough for a secure seal, route the wiring away from hot components, then reconnect the electrical plug and clear any diagnostic codes as needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStep 1: Locate and remove old sensor with an oxygen-sensor socket.\u003c\/li\u003e\n  \u003cli\u003eStep 2: Compare new vs old sensors to confirm fit and orientation.\u003c\/li\u003e\n  \u003cli\u003eStep 3: Clean threads and install sensor, tightening to spec.\u003c\/li\u003e\n  \u003cli\u003eStep 4: Reconnect harness, secure wiring, and clear codes if present.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty or return options come with this kit?\u003c\/h3\u003e\n\u003cp\u003eMAXFAVOR accepts returns if the sensors don’t fit your vehicle—items should be clean and returned in good packaging. If you have questions about fitment, contact the seller for assistance; they aim to respond within 24 hours.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReturn accepted for incorrect fitment with clean, well-packaged item.\u003c\/li\u003e\n  \u003cli\u003eSeller support available for fitment confirmation prior to purchase.\u003c\/li\u003e\n  \u003cli\u003eFitment guidance includes multiple OEM cross-references and pictures.\u003c\/li\u003e\n  \u003cli\u003eFollow local disposal rules for used sensors and packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This four-piece MAXFAVOR oxygen sensor set is suited for DIY mechanics, independent repair shops and fleet owners working on Toyota Tundra (2000–2002) or Sequoia (2001–2004) with the 4.7L 4WD engine who need a full upstream\/downstream replacement. Choose this kit when you’re addressing multiple sensor codes, replacing sensors during exhaust service, or completing a comprehensive emissions-related repair where matching all four sensors at once saves labor and ensures consistent readings across the system.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will these sensors fit my 2002 Toyota Tundra 4.7L 4WD?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this kit lists fitment for 2000–2002 Tundra 4.7L 4WD, but compare the sensor plugs and threads to your originals before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these direct OE replacements or universal sensors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They are direct-fit replacements intended to match OE part references 234-4169 and 234-4162 for the listed Toyota models.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Maxfavor","offers":[{"title":"Default Title","offer_id":48083984580766,"sku":"B07K8H5GCP","price":73.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/maxfavor-front-packaging-4pcs-o2-kit.jpg?v=1785842247","url":"https:\/\/northtrailauto.ca\/products\/maxfavor-oxygen-sensor-kit-for-toyota-tundra-sequoia-4-7l-4-piece-oe-fit-upstream-and-downstream-replacements","provider":"North Trail Auto","version":"1.0","type":"link"}