{"product_id":"a-premium-downstream-o2-oxygen-sensor-for-nissan-infiniti-heated-4-wire-direct-fit-v6-3-7l-compatible","title":"A-Premium Downstream O2 Oxygen Sensor for Nissan \u0026 Infiniti — Heated 4‑Wire Direct-Fit (V6 3.7L Compatible)","description":"\u003cp\u003e\u003cstrong\u003eThe A-Premium downstream O2 oxygen sensor is a direct-fit, heated 4-wire replacement sensor engineered to restore accurate downstream exhaust readings on compatible Nissan and Infiniti models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement oxygen sensor measures residual oxygen levels after the catalytic converter to help your vehicle’s engine control module monitor converter efficiency. It arrives as a boxed, threaded sensor with a female connector and four wires, matching OE-style electrical and mounting features for easy installation. Before ordering, verify fitment carefully against your vehicle model year and the provided reference numbers to avoid returns.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will this oxygen sensor fit?\u003c\/h3\u003e\n\u003cp\u003eThis A-Premium downstream sensor covers numerous Nissan and Infiniti models across several years and engine sizes. Fitment varies by downstream location (left\/right, front\/rear) and model; check the specific vehicle list and notes to ensure compatibility with your VIN and engine type.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInfiniti Q40 (2015) and Q50\/Q60 (2014–2015) with V6 3.7L engines\u003c\/li\u003e\n  \u003cli\u003eInfiniti Q70\/Q70L (2014–2019) and QX50\/QX70 (2015–2017) V6 3.7L fitments\u003c\/li\u003e\n  \u003cli\u003eNissan 370Z (2014–2020) V6 3.7L and Altima (2013–2018) L4 2.5L B1S2 positions\u003c\/li\u003e\n  \u003cli\u003eOther fits include Juke, JX35, QX60, Pathfinder, Murano, Quest, and select Altima V6 models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the key specifications and part references?\u003c\/h3\u003e\n\u003cp\u003eThe sensor is a heated, threaded oxygen sensor with a four-wire connector and female plug—designed to match the OE-style electrical interface and mounting thread. Multiple reference numbers are listed to help confirm cross-compatibility when you compare with your vehicle’s OEM part.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSensor type: Heated downstream oxygen sensor\u003c\/li\u003e\n  \u003cli\u003eWiring: 4 wires, female connector\u003c\/li\u003e\n  \u003cli\u003eMounting: Threaded for direct installation\u003c\/li\u003e\n  \u003cli\u003eReference numbers: 250-241106, 234-4535, 24167, 226A01KC0A and equivalents\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I confirm fitment and avoid returns?\u003c\/h3\u003e\n\u003cp\u003eBecause downstream sensor position and wiring differ across trims and years, confirm compatibility using the vehicle fitment tool on the listing page and compare the part reference numbers. Pay special attention to any published “Note” or fitment caveats—if the note doesn’t match your vehicle specs, do not buy.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse the site’s Confirmed Fit or vehicle selector before purchasing\u003c\/li\u003e\n  \u003cli\u003eCompare the listed reference numbers with your existing part\u003c\/li\u003e\n  \u003cli\u003eReview notes for position (LH\/RH, front\/rear) and engine type (V6 vs L4)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Drivers and independent mechanics who need an affordable, OE-style downstream oxygen sensor replacement for compatible Nissan or Infiniti vehicles. It suits owners looking to replace a failed or aged downstream O2 sensor with a heated, 4-wire unit that matches original mounting and connector styles. This part is ideal for those comfortable verifying fitment details and performing or overseeing a straightforward threaded sensor swap.\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: Is this A-Premium O2 sensor heated and how many wires does it have?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it is a heated oxygen sensor with four wires and a female connector for OE-style fitment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this sensor for my 2015 Infiniti Q50 3.7L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Possibly — the Q50 2014–2015 V6 3.7L is listed; verify exact fit with your VIN and the listed reference numbers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":55165936140631,"sku":"B08VRCP6QX","price":38.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/a-premium-downstream-o2-front-view.jpg?v=1790359986","url":"https:\/\/britishgarage.co.uk\/products\/a-premium-downstream-o2-oxygen-sensor-for-nissan-infiniti-heated-4-wire-direct-fit-v6-3-7l-compatible","provider":"British Garage","version":"1.0","type":"link"}