{"product_id":"a-premium-downstream-o2-oxygen-sensor-for-ford-lincoln-heated-4-wire-750mm-single","title":"A-Premium Downstream O2 Oxygen Sensor for Ford \u0026 Lincoln — Heated 4-Wire, 750mm Single","description":"\u003cp\u003e\u003cstrong\u003eA-Premium Downstream O2 Oxygen Sensor is a direct-fit, heated downstream oxygen sensor engineered to restore accurate exhaust oxygen readings on compatible Ford and Lincoln models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement downstream (post-catalyst) oxygen sensor from A-Premium is built to match OE form and function for a range of Ford and Lincoln vehicles. It uses a heated element and a four-wire connector to provide fast warm-up and reliable signal reporting to the vehicle’s engine control module (ECM). The sensor is threaded for straightforward installation and comes boxed with a 750 mm lead length to reach common downstream mounting locations.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will this A-Premium downstream sensor fit?\u003c\/h3\u003e\n\n\u003cp\u003eThe sensor fits many Ford and Lincoln models that use a downstream (bank 1, sensor 2 or bank 2, sensor 2) configuration. Check the exact model years, engine sizes and VIN notes below to confirm compatibility before ordering.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFord Bronco Sport 2021–2022 L4 2.0L (B1S2)\u003c\/li\u003e\n  \u003cli\u003eFord Edge 2016–2022 L4 2.0L (B1S2, from 02\/27\/2016) and Escape 2017–2022 L4 2.0L\u003c\/li\u003e\n  \u003cli\u003eFord Explorer 2016–2023 L4 2.3L (B1S2) and Focus\/Fusion variants listed in compatibility\u003c\/li\u003e\n  \u003cli\u003eLincoln Corsair, MKC, MKZ, Nautilus and selected Taurus\/MKT\/E-Series fitments as specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the technical specifications of this oxygen sensor?\u003c\/h3\u003e\n\n\u003cp\u003eThe A-Premium sensor is a heated, threaded oxygen sensor with a four-wire female connector and a 750 mm overall cable length. It is packaged singly in a protective box and carries several cross-reference numbers used by parts professionals.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSensor type: Heated downstream oxygen sensor (post-catalyst)\u003c\/li\u003e\n  \u003cli\u003eWiring: 4 wires with female connector for OEM-style hookups\u003c\/li\u003e\n  \u003cli\u003eMounting: Threaded body for standard oxygen sensor ports\u003c\/li\u003e\n  \u003cli\u003eLength and packaging: 750 mm overall cable; sold as 1x oxygen sensor in a box\u003c\/li\u003e\n  \u003cli\u003eReference numbers: 250-241184, 234-8039, FB5Z9G444A, GK4Z9G444E, HS7Z9G444A\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this downstream oxygen sensor affect vehicle operation?\u003c\/h3\u003e\n\n\u003cp\u003eThe downstream sensor monitors exhaust oxygen levels after the catalytic converter and helps the vehicle’s control systems evaluate catalyst efficiency and emissions. While it does not directly control fuel trim the way an upstream sensor does, accurate downstream readings are important for emission diagnostics and for preventing diagnostic trouble codes (DTCs).\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eHelps the ECM monitor catalytic converter performance\u003c\/li\u003e\n  \u003cli\u003eReduces false emission-related fault codes with a proper replacement\u003c\/li\u003e\n  \u003cli\u003eHeated element enables quicker sensor readiness after cold starts\u003c\/li\u003e\n  \u003cli\u003eFour-wire design supports OEM-style grounding and heater circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation and fit verification?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is typically straightforward for anyone comfortable working under the vehicle and using basic hand tools. Always compare the sensor’s connector, thread size and cable length to the original part and consult the vehicle compatibility list or a VIN lookup to ensure proper fit.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThreaded mount accepts standard O2 sensor sockets and crowfoot tools\u003c\/li\u003e\n  \u003cli\u003e750 mm lead length suits most downstream mounting positions without stretching\u003c\/li\u003e\n  \u003cli\u003eConfirm match with original part numbers or the reference numbers provided\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery and follow safety precautions when replacing sensors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This A-Premium downstream oxygen sensor is intended for DIY mechanics, independent repair shops and fleet technicians who need a cost-effective replacement for downstream oxygen sensor faults, emission testing preparations or routine exhaust system repairs on compatible Ford and Lincoln vehicles. Verify vehicle year, engine and sensor position before purchasing to ensure a correct fit.\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 sensor heated and how many wires does it have?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It is a heated downstream oxygen sensor with a four-wire configuration and a female connector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this sensor on my 2019 Ford Edge 2.0L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the sensor fits many 2016–2022 Ford Edge 2.0L models (B1S2); verify exact VIN and engine variant first.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":48085914222750,"sku":"B08VRR2RFT","price":49.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/a-premium-front-view-packaging_dafb2ee2-c1e3-4dcf-a8af-ac32e27758f8.jpg?v=1785880578","url":"https:\/\/northtrailauto.ca\/products\/a-premium-downstream-o2-oxygen-sensor-for-ford-lincoln-heated-4-wire-750mm-single","provider":"North Trail Auto","version":"1.0","type":"link"}