{"product_id":"o2-oxygen-sensor-downstream-for-toyota-highlander-2011-2016-3-5l","title":"O2 Oxygen Sensor Downstream for Toyota Highlander (2011-2016) 3.5L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Downstream Oxygen Sensor for 2011-2016 Toyota Highlander (XU40 \/ XU50)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The downstream oxygen sensor monitors post-catalytic converter exhaust gas composition on the 2011-2016 Toyota Highlander to ensure proper emissions compliance and prevent catalyst efficiency check engine lights.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Highlander Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eOver extended heat cycles, the factory downstream O2 sensors on the Toyota Highlander succumb to carbon contamination, silicone poisoning, and internal heater circuit failure. As the internal ceramic sensing element degrades on the high-mileage \u003cstrong\u003e2GR-FE\u003c\/strong\u003e engine, voltage response slows significantly. This signal latency leads to false-positive diagnostic trouble codes (such as P0420 or P0430), failed state emissions inspections, and skewed short-term fuel trim calibration.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to match OEM switching rates, this direct-fit sensor features a robust planar zirconia ceramic element protected by a 304 stainless steel double-layered thermal shield. Built with factory-pinned weather-pack terminal connectors, high-temp PTFE insulated wiring, and corrosion-resistant outer housing, it provides precise millivolt feedback to the engine control module. The direct-fit design eliminates wire cutting or splicing, restoring clean closed-loop signal integrity and eliminating emission-related error codes.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Downstream Direct-Fit Oxygen Sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2011-2016 Toyota Highlander\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003e2GR-FE\u003c\/strong\u003e (3.5L V6) \/ \u003cstrong\u003eXU40\u003c\/strong\u003e, \u003cstrong\u003eXU50\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e270 hp \/ 248 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003e89465-47080\u003c\/strong\u003e, \u003cstrong\u003e8946547080\u003c\/strong\u003e, \u003cstrong\u003eS4-4400\u003c\/strong\u003e, \u003cstrong\u003e250-24870\u003c\/strong\u003e, \u003cstrong\u003e25024870\u003c\/strong\u003e, \u003cstrong\u003e350-34074\u003c\/strong\u003e, \u003cstrong\u003e35034074\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2011-2013 Toyota Highlander Base \/ SE \/ Limited (3.5L V6 Gas)\u003c\/li\u003e\n  \u003cli\u003e2014-2016 Toyota Highlander LE \/ LE Plus \/ XLE \/ Limited (3.5L V6 Gas)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the XU40 \/ XU50 Highlander?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the downstream position on the 2011-2016 Toyota Highlander equipped with the 3.5L \u003cstrong\u003e2GR-FE\u003c\/strong\u003e V6 engine. \u003cstrong\u003eDoes not fit 2.7L 1AR-FE 4-cylinder or Hybrid models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eIs wire splicing required during installation?\u003c\/h4\u003e\n\u003cp\u003eNo, this sensor features an exact OEM-spec harness connector and lead length for complete plug-and-play installation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Durability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the harsh thermal underbody conditions of the \u003cstrong\u003eXU40\u003c\/strong\u003e and \u003cstrong\u003eXU50\u003c\/strong\u003e platforms, this downstream sensor delivers accurate catalytic monitoring and long-term emissions stability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67551487099128,"sku":"DS-E8MZ1SF8B","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-downstream-for-toyota-highlander-2011-2016-3-5l-1.jpg?v=1790797172","url":"https:\/\/performancechiptuning.com\/es\/products\/o2-oxygen-sensor-downstream-for-toyota-highlander-2011-2016-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}