{"product_id":"maxfavor-replacement-upstream-downstream-o2-oxygen-sensor-pair-for-2009-2011-chevy-traverse-gmc-acadia-buick-enclave-saturn-outl","title":"Maxfavor Replacement Upstream \u0026 Downstream O2 Oxygen Sensor Pair for 2009-2011 Chevy Traverse GMC Acadia Buick Enclave Saturn Outl","description":"\u003cp\u003e\u003cstrong\u003eMaxfavor 2-piece upstream and downstream oxygen sensor pair engineered to replace failed O2 sensors on 2009–2011 3.6L V6 Chevy Traverse, GMC Acadia, Buick Enclave and Saturn Outlook models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese two oxygen (O2) sensors — part numbers 234-4815 and 234-4816 — come as a matching upstream and downstream set designed to fit front-wheel and all-wheel drive variants of the listed vehicles with the 3.6L V6 engine. Built from corrosion-resistant materials and assembled to the factory-style dimensions, the set is intended to restore oxygen-sensing feedback for the engine control module after the original sensors fail or show out-of-range readings.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engine layouts do these sensors fit?\u003c\/h3\u003e\n\u003cp\u003eThese sensors are compatible with 2009, 2010 and 2011 model years of several GM SUVs that use the 3.6L V6 engine. They fit both FWD and AWD configurations where the original OE sensors match the listed part numbers. Always compare connectors and thread locations with your existing sensors before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e2009–2011 Buick Enclave V6 3.6L (FWD \u0026amp; AWD)\u003c\/li\u003e\n  \u003cli\u003e2009–2011 Chevy Traverse V6 3.6L (FWD \u0026amp; AWD; 2011 Traverse noted separately for FWD)\u003c\/li\u003e\n  \u003cli\u003e2009–2011 GMC Acadia V6 3.6L (FWD \u0026amp; AWD)\u003c\/li\u003e\n  \u003cli\u003e2009–2011 Saturn Outlook V6 3.6L (FWD \u0026amp; AWD)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these O2 sensors affect engine operation and fuel use?\u003c\/h3\u003e\n\u003cp\u003eOxygen sensors measure exhaust oxygen content and feed that data to the engine control unit so air–fuel ratio can be adjusted. Replacing a failing upstream or downstream sensor helps the ECU regain accurate readings, which supports consistent combustion and catalytic converter monitoring. While no part guarantees specific fuel savings, proper sensing helps the engine manage fuel delivery correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUpstream sensor monitors pre-catalyst exhaust for fuel-trim adjustments\u003c\/li\u003e\n  \u003cli\u003eDownstream sensor helps monitor catalyst efficiency\u003c\/li\u003e\n  \u003cli\u003eRestores the feedback loop the ECU needs for timing and fuel control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation and fitment checks?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for mechanically experienced owners or technicians: remove the old sensor, confirm the replacement matches the original, clean the threads, and install the new unit with care to avoid wire damage. Torque to manufacturer specs and clear any diagnostic trouble codes after installation to verify the repair. If in doubt, professional installation is recommended.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompare connector, thread type and sensor length with your original part\u003c\/li\u003e\n  \u003cli\u003eClean threaded port and hand-start sensor to avoid cross-threading\u003c\/li\u003e\n  \u003cli\u003eKeep wire routing free from exhaust and moving parts when tightening\u003c\/li\u003e\n  \u003cli\u003eClear OBD-II codes and run a diagnostic check after replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the product’s construction and warranty points?\u003c\/h3\u003e\n\u003cp\u003eMaxfavor builds this pair from durable, corrosion-resistant materials intended to match OEM dimensions and electrical connections. The seller accepts returns if the sensors don’t match the vehicle, and customer support is available for fitment questions. Follow the stated cautions and compare photos to your existing sensors before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFactory-style connectors and thread profiles for direct replacement\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant housing and sensor elements for extended service life\u003c\/li\u003e\n  \u003cli\u003eReturn policy available if the sensors aren’t compatible with your vehicle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: drivers or mechanics who need a direct-fit upstream and downstream O2 sensor pair for 2009–2011 GM SUVs with the 3.6L V6 engine. This kit suits DIYers comfortable with basic exhaust-system work, independent repair shops replacing faulty oxygen sensors, and anyone seeking an OEM-style replacement to restore proper exhaust sensing and engine feedback. Always verify year, model, engine, connector, and part number compatibility 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 both FWD and AWD versions?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This Maxfavor pair fits both FWD and AWD 2009–2011 models listed, provided the original sensor connector and thread match.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install these myself without professional help?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If you have basic hand tools and experience with exhaust components, you can. Otherwise, a professional install is recommended to avoid damage.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Maxfavor","offers":[{"title":"Default Title","offer_id":48086802989214,"sku":"B0DHNKZ3T9","price":51.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/maxfavor-front-packaging-o2-sensor-pair.jpg?v=1785905734","url":"https:\/\/northtrailauto.ca\/products\/maxfavor-replacement-upstream-downstream-o2-oxygen-sensor-pair-for-2009-2011-chevy-traverse-gmc-acadia-buick-enclave-saturn-outl","provider":"North Trail Auto","version":"1.0","type":"link"}