{"product_id":"higherbro-oxygen-o2-sensor-kit-for-chevy-silverado-1500-2008-2013-4-pack-2-upstream-2-downstream-for-improved-fuel-economy","title":"higherbro Oxygen O2 Sensor Kit for Chevy Silverado 1500 2008-2013 – 4-Pack (2 Upstream, 2 Downstream) for Improved Fuel Economy","description":"\u003cstrong\u003ehigherbro 4x Oxygen O2 Sensor kit supplies two upstream and two downstream sensors engineered to restore accurate air–fuel monitoring on compatible 2008–2013 GM trucks and SUVs (does not fit 4.3L engines).\u003c\/strong\u003e\n\n\u003cp\u003eIf your check engine light, fuel economy, or emissions performance points to worn oxygen sensors, this higherbro four-pack gives you the full set needed for many Chevrolet, GMC, Cadillac, Pontiac and Saturn vehicles from the 2008–2014 model years. Each sensor uses an aluminum-oxide sensing element and an analog voltage output to communicate oxygen content to the engine control module. The package includes two sensors designed for upstream (pre-catalyst) positions and two for downstream (post-catalyst) positions, plus a flange-style mounting for straightforward installation.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these sensors affect my truck's running condition?\u003c\/h3\u003e\n\u003cp\u003eReplacing failing O2 sensors helps the engine control module get correct exhaust oxygen readings so it can adjust fuel delivery and timing. That leads to smoother idling, reduced misfires and more consistent throttle response when sensors are functioning correctly. These sensors are designed to match the common electrical and mechanical specs of the original equipment on supported GM engines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasures oxygen range from 0 to 20.5% for accurate feedback.\u003c\/li\u003e\n  \u003cli\u003eAnalog voltage output compatible with factory ECU inputs.\u003c\/li\u003e\n  \u003cli\u003eFlange mount for a secure, OEM-like fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and engine types are compatible with this four-pack?\u003c\/h3\u003e\n\u003cp\u003eThis set fits a range of V6 and V8 GM models built between 2008 and 2014, excluding vehicles equipped with the 4.3L engine. Always verify fitment using the \"Select Your Vehicle\" tool on the product page before ordering to confirm model year, engine size and notes match your vehicle.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCovers Chevrolet Avalanche, Silverado 1500, Suburban 1500, Tahoe and select others.\u003c\/li\u003e\n  \u003cli\u003eAlso fits Cadillac Escalade\/ESV\/EXT, GMC Sierra\/Yukon\/Yukon XL models within listed years.\u003c\/li\u003e\n  \u003cli\u003eIncludes select Pontiac and Saturn models noted in the fitment guide.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what hardware is included?\u003c\/h3\u003e\n\u003cp\u003eEach kit contains four sensors—two upstream and two downstream—ready for direct replacement of the factory sensors in compatible vehicles. The flange-style connection simplifies mounting, but basic tools and an O2 sensor socket or wrench are typically required. If you are unsure, a professional mechanic or experienced DIYer can complete the swap in a short shop session.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e4 pieces: 2 upstream (pre-catalyst) and 2 downstream (post-catalyst).\u003c\/li\u003e\n  \u003cli\u003eFlange mount design for straightforward installation.\u003c\/li\u003e\n  \u003cli\u003eDesigned for 12V systems and standard vehicle wiring harnesses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and quality details come with the purchase?\u003c\/h3\u003e\n\u003cp\u003eThe higherbro sensors include a one-year quality guarantee covering manufacturing defects. They are constructed with an aluminum-oxide sensing element and rated to operate within the typical oxygen measurement range for gasoline engines. Keep original purchase documentation for warranty support.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne-year quality guarantee against manufacturing defects.\u003c\/li\u003e\n  \u003cli\u003eAluminum-oxide sensing element for reliable signal generation.\u003c\/li\u003e\n  \u003cli\u003eSpecified measurement range: 0–20.5% oxygen concentration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This 4x oxygen sensor set is aimed at owners or technicians servicing 2008–2013 Chevrolet Silverado 1500 and many other GM trucks and SUVs within the listed years and engine sizes (except 4.3L). Choose this kit if you need a complete upstream\/downstream replacement set to restore accurate O2 sensing, ensure correct ECU feedback, and maintain emissions and fuel performance on compatible vehicles. Remember to confirm your exact make, model, year and engine through the \"Select Your Vehicle\" option before purchase.\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: Do these sensors fit a 2009 Silverado 1500 with a 5.3L engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This four-pack fits 2008–2013 Silverado 1500 models with the 5.3L engine—confirm via the \"Select Your Vehicle\" tool.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these upstream and downstream sensors both included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit contains four sensors: two upstream (pre-catalyst) and two downstream (post-catalyst).\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"higherbro","offers":[{"title":"Default Title","offer_id":55168407732567,"sku":"B07X2JV71N","price":54.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/higherbro-front-packaging-4x-o2-sensors.jpg?v=1790403069","url":"https:\/\/britishgarage.co.uk\/products\/higherbro-oxygen-o2-sensor-kit-for-chevy-silverado-1500-2008-2013-4-pack-2-upstream-2-downstream-for-improved-fuel-economy","provider":"British Garage","version":"1.0","type":"link"}