{"product_id":"a-premium-o2-oxygen-sensor-2-pack-for-chevrolet-gmc-buick-4-pin-heated-threaded-replacement","title":"A-Premium O2 Oxygen Sensor 2-Pack for Chevrolet, GMC \u0026 Buick — 4‑Pin Heated Threaded Replacement","description":"\u003cp\u003e\u003cstrong\u003eA-Premium 2-Pack O2 Oxygen Sensor is a pair of 4-pin heated, threaded replacement oxygen sensors designed to restore accurate exhaust oxygen readings on select Chevrolet, GMC and Buick 1.2L–1.5L and 1.4L engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese replacement sensors match the electrical and mounting style of many GM applications so your engine control module receives the proper air-fuel feedback. Each sensor is a heated, male-threaded unit with four wires and comes boxed; models are cross-referenced to part number 250-241188 (250241188). The set is sold as two independent sensors so you can replace upstream and downstream units or keep a spare on hand.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engine types does this 2-pack fit?\u003c\/h3\u003e\n\u003cp\u003eThese sensors are tailored for specific Chevy, GMC and Buick models with 4-pin oxygen sensor connectors. Fitment includes both upstream and downstream positions for many 1.4L and 1.5L four-cylinder engines and downstream-only fitments for select 1.2L and 1.5L engines—confirm plug style and model year before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBuick Encore: 2016–2019, 2021–2022 L4 1.4L (upstream \u0026amp; downstream)\u003c\/li\u003e\n  \u003cli\u003eChevrolet Cruze: 2016–2019 L4 1.4L (L\/LT\/LS\/Premier)\u003c\/li\u003e\n  \u003cli\u003eChevrolet Equinox \u0026amp; Malibu: 2018–2021 Equinox 1.5L; 2016–2021 Malibu 1.5L\u003c\/li\u003e\n  \u003cli\u003eChevrolet Spark \u0026amp; Trax: Spark 2016–2022 1.4L; Trax 2021 1.4L\u003c\/li\u003e\n  \u003cli\u003eGMC Terrain: 2018–2021 L4 1.5L (SL\/SLE\/SLT)\u003c\/li\u003e\n  \u003cli\u003eDownstream only: Buick Encore GX 2020–2022 1.2L; Chevy Trailblazer 2021–2022 1.2L; Volt 2018–2019 1.5L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the sensor’s design affect installation and performance?\u003c\/h3\u003e\n\u003cp\u003eThese are heated, threaded sensors with a male connector and four conductors, which helps them reach operating temperature quickly and provide stable readings to the vehicle’s control module. The threaded mounting makes them a direct-style replacement when the OEM sensor uses the same thread size and plug configuration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeated element for faster warm-up and reliable readings at idle\u003c\/li\u003e\n  \u003cli\u003eThreaded mounting for standard O2 sensor ports\u003c\/li\u003e\n  \u003cli\u003e4-pin male connector—verify vehicle uses 4-pin sensor\u003c\/li\u003e\n  \u003cli\u003eBoxed packaging for protection in shipping and storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat reference and specification details should I check before buying?\u003c\/h3\u003e\n\u003cp\u003eMatch the vehicle’s required sensor type, connector pin count and position (upstream vs downstream) to avoid fitment problems. This A-Premium product corresponds to reference numbers 250-241188 and 250241188; double-check the OEM part number and the vehicle’s wire-count to confirm compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReference numbers: 250-241188, 250241188\u003c\/li\u003e\n  \u003cli\u003eWire quantity: 4 (heated sensor wiring)\u003c\/li\u003e\n  \u003cli\u003eSensor type: heated, male connector\u003c\/li\u003e\n  \u003cli\u003eMounting: threaded; packaging: box\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eBuyers receive a one-year unlimited-mileage guarantee from A-Premium, covering manufacturing defects so you can install with confidence. The two-sensor pack is useful for replacing both banks or keeping a backup sensor on hand.\u003c\/p\u003e\n\n\u003cp\u003eWho is this for: This 2-pack suits DIY mechanics and independent shops working on compatible Chevrolet, GMC and Buick small-displacement engines that require a 4-pin heated, threaded O2 sensor. It’s ideal when you need a direct-style replacement for upstream and downstream positions or when replacing a failing sensor and wanting a matched spare.\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: Does this 2-pack include upstream and downstream sensors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The pack contains two identical 4-pin heated sensors that can be used upstream and downstream where applicable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will these fit my car if it uses a 3-pin connector?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. These sensors are 4-pin male connectors and only fit vehicles requiring a 4-pin O2 sensor.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":48086706716830,"sku":"B0C8BBXDJS","price":64.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/a-premium-front-packaging_674d9d36-4fd6-4085-9302-ad69bf812ef2.jpg?v=1785902296","url":"https:\/\/northtrailauto.ca\/products\/a-premium-o2-oxygen-sensor-2-pack-for-chevrolet-gmc-buick-4-pin-heated-threaded-replacement","provider":"North Trail Auto","version":"1.0","type":"link"}