{"product_id":"a-premium-upstream-o2-oxygen-sensor-2-pack-for-chevrolet-gmc-buick-cadillac-heated-4-wire-oem-fit","title":"A-Premium Upstream O2 Oxygen Sensor 2-Pack for Chevrolet GMC Buick Cadillac — Heated 4‑Wire OEM Fit","description":"\u003cp\u003e\u003cstrong\u003eA-Premium 2-pack upstream oxygen sensors replace faulty O2 sensors to restore accurate air-fuel readings for compatible Chevrolet, GMC, Buick, Cadillac and Pontiac vehicles.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your check engine light points to an oxygen sensor or your engine is running rough, swapping in a matched pair of upstream sensors can help the vehicle’s computer regain precise exhaust feedback. These A-Premium sensors are heated, threaded units with a four-wire female connector and come as a boxed two-piece set designed to match OEM fitment references for many GM models from early 2000s through mid-2010s.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will these A-Premium upstream sensors fit?\u003c\/h3\u003e\n\u003cp\u003eThis 2-pack covers a broad range of General Motors platforms. Fitment spans Chevrolet, GMC, Buick, Pontiac, Saturn and Cadillac models across multiple years; some late-model vehicles use these as upstream sensors while a few older models accept them upstream or downstream.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommon Chevy fits: Cobalt, Equinox, Silverado 1500\/2500\/3500, Tahoe, Suburban, Impala, Malibu, Avalanche, Corvette, HHR, Monte Carlo.\u003c\/li\u003e\n  \u003cli\u003eGMC and Yukon families: Sierra 1500\/3500, Acadia, Yukon\/Yukon XL, Sierra 1500 (2007–2011 upstream right).\u003c\/li\u003e\n  \u003cli\u003eCadillac, Buick, Pontiac \u0026amp; Saturn applications listed: Escalade, CTS, Enclave, Lucerne, G6, G8, Torrent, Aura, Ion, Montana, Bonneville and others.\u003c\/li\u003e\n  \u003cli\u003eReference numbers supported: 250-24470, 12569429, 12573005, 12573167, 12576131, 12583290, 12607410, 12609001, 12611127, 8125731670.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the technical specifications and connector details?\u003c\/h3\u003e\n\u003cp\u003eEach sensor in the A-Premium kit is a heated, threaded oxygen sensor built with a four-wire harness and female connector. The heating element enables quicker sensor activation and more reliable readings during cold-start and transient driving conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWire quantity: 4 (heater plus signal\/ground wiring).\u003c\/li\u003e\n  \u003cli\u003eSensor type: heated zirconia-style oxygen sensor.\u003c\/li\u003e\n  \u003cli\u003eMounting type: threaded for direct replacement into the exhaust bung.\u003c\/li\u003e\n  \u003cli\u003eConnector gender: female for plug-and-play with matching factory harnesses.\u003c\/li\u003e\n  \u003cli\u003ePackage: two sensors, boxed for protection in transit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these sensors help with typical driveability or emissions issues?\u003c\/h3\u003e\n\u003cp\u003eFaulty upstream sensors often cause incorrect fuel trims, rough idle, reduced fuel economy, or emissions test failures. Replacing a worn sensor with an appropriate upstream unit provides accurate oxygen readings so the engine control module can adjust fuel delivery correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores accurate oxygen-level feedback for closed-loop fueling control.\u003c\/li\u003e\n  \u003cli\u003eHelps stabilize idle and improves transient throttle response.\u003c\/li\u003e\n  \u003cli\u003eCan reduce unburned hydrocarbons by enabling proper air-fuel ratios.\u003c\/li\u003e\n  \u003cli\u003eMay resolve related check-engine codes (diagnostic confirmation recommended).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this A-Premium 2-pack designed for?\u003c\/p\u003e\n\u003cp\u003eThis replacement set is intended for do-it-yourself mechanics, independent repair shops and fleet technicians working on compatible GM vehicles who need a cost-effective, direct-fit upstream oxygen sensor solution. It’s best for owners who have confirmed O2 sensor-related codes or poor running symptoms and who require an OE-style heated sensor with a four-wire connector for reliable plug-and-play installation.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these A-Premium oxygen sensors direct replacements for my GM vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They are direct-fit for many Chevrolet, GMC, Buick, Pontiac, Saturn and Cadillac models listed; confirm your vehicle year and OEM reference numbers before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these sensors include the heater circuit for faster operation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Each sensor is a heated four-wire unit, which helps the sensor reach operating temperature more quickly.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":55167778160983,"sku":"B07NW2HTSQ","price":42.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/a-premium-front-packaging_6426f90f-930b-4028-863a-bd6aa41b0894.jpg?v=1790393562","url":"https:\/\/britishgarage.co.uk\/products\/a-premium-upstream-o2-oxygen-sensor-2-pack-for-chevrolet-gmc-buick-cadillac-heated-4-wire-oem-fit","provider":"British Garage","version":"1.0","type":"link"}