{"product_id":"oxygen-sensors-for-toyota-tundra-2012-2016-5-7l-upstream","title":"Oxygen Sensors for Toyota Tundra (2012-2016) 5.7L Upstream","description":"\u003ch2\u003eDirect-Fit Upstream Oxygen Sensor Kit for 2012-2016 Toyota Tundra\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Upstream Oxygen Sensor Kit replaces degraded factory air-fuel ratio sensors on the 2012-2016 Tundra to restore precise closed-loop ECM fuel trim feedback, smooth idle quality, and optimal combustion efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Tundra Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eOperating a hard-working half-ton truck subjects exhaust hardware to intense thermal cycles. On the \u003cstrong\u003eXK50\u003c\/strong\u003e platform, factory upstream air-fuel ratio sensors routinely suffer from ceramic element poisoning due to carbon buildup, oil blow-by, and silica contamination over high mileage. As internal heater circuits degrade and sensor response slows down (lazy voltage switching), the factory engine control module defaults to conservative, rich fuel tables. This leads to rough idle conditions, increased exhaust gas temperatures, unburnt hydrocarbon build-up in the catalytic converters, and persistent diagnostic trouble codes like P0135 or P0155.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit 2-piece upstream sensor set engineered for the \u003cstrong\u003e3UR-FE\u003c\/strong\u003e V8 utilizes high-temp planar zirconia sensing elements protected by a laser-welded, dual-layer 300-series stainless steel shield. The integrated fast-light-off ceramic heater quickly achieves operating temperature to minimize cold-start open-loop run time. Built with a porous PTFE filter membrane to shield against moisture intrusion and ambient contamination, these sensors deliver rapid stoichiometric switching and accurate wideband voltage feedback directly to the ECM without signal delay.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\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;\"\u003e2012-2016 Toyota Tundra\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\u003e3UR-FE\u003c\/strong\u003e \/ \u003cstrong\u003eXK50\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;\"\u003e381 hp \/ 401 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;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2012-2016 Toyota Tundra SR 5.7L V8 (3UR-FE)\u003c\/li\u003e\n  \u003cli\u003e2012-2016 Toyota Tundra SR5 5.7L V8 (3UR-FE)\u003c\/li\u003e\n  \u003cli\u003e2012-2016 Toyota Tundra Limited 5.7L V8 (3UR-FE)\u003c\/li\u003e\n  \u003cli\u003e2012-2016 Toyota Tundra Platinum 5.7L V8 (3UR-FE)\u003c\/li\u003e\n  \u003cli\u003e2014-2016 Toyota Tundra 1794 Edition 5.7L V8 (3UR-FE)\u003c\/li\u003e\n  \u003cli\u003e2015-2016 Toyota Tundra TRD Pro 5.7L V8 (3UR-FE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the XK50 Tundra?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2012-2016 Toyota Tundra equipped with the \u003cstrong\u003e3UR-FE\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill replacing upstream sensors clear check engine codes like P0135 or P0155?\u003c\/strong\u003e\u003cbr\u003e Yes, replacing tired upstream sensors fixes open or high-resistance internal heater circuits, clearing related DTCs once engine runtime reset cycles complete.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the thermal demands of heavy payload hauling and cross-country towing, this sensor package restores original factory calibration parameters and protects downstream catalytic converters under severe work-truck duty.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50511199273208,"sku":"DS-E7229FLB6","price":88.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/oxygen-sensors-for-toyota-tundra-2012-2016-5-7l-upstream-1.jpg?v=1789411196","url":"https:\/\/performancechiptuning.com\/es\/products\/oxygen-sensors-for-toyota-tundra-2012-2016-5-7l-upstream","provider":"Performance Chip Tuning","version":"1.0","type":"link"}