{"product_id":"oxygen-sensors-for-toyota-tundra-2007-2011-5-7l-upstream-downstream","title":"Oxygen Sensors for Toyota Tundra (2007-2011) 5.7L Upstream \u0026 Downstream","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Complete Oxygen Sensor Kit for 2007-2011 Toyota Tundra (XK50)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The complete 4-piece oxygen sensor kit restores closed-loop fuel metering and emissions tracking on the 2007-2011 Toyota Tundra to resolve check engine lights and eliminate rich or lean running conditions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Tundra Exhaust Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eExhaust gas sensors operating in the \u003cstrong\u003e3UR-FE\u003c\/strong\u003e exhaust stream face severe thermal cycling and chemical contamination from combustion particulates, fuel additives, and sulfur. Over time, silica contamination and carbon buildup coat the ceramic zirconia diffusion elements, drastically slowing signal response rates. On the second-generation \u003cstrong\u003eXK50\u003c\/strong\u003e platform, aged upstream wideband air-fuel ratio sensors and downstream heated oxygen sensors cause inaccurate short-term and long-term fuel trims. This calibration drift results in delayed catalytic light-off, rough idling, excessive fuel consumption, and diagnostic trouble codes including \u003cstrong\u003eP0130\u003c\/strong\u003e through \u003cstrong\u003eP0161\u003c\/strong\u003e, as well as false \u003cstrong\u003eP0420\u003c\/strong\u003e and \u003cstrong\u003eP0430\u003c\/strong\u003e catalytic threshold errors.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis four-sensor replacement kit delivers precision-matched planar zirconia sensing elements housed in high-grade stainless steel bodies designed to withstand sustained exhaust gas temperatures up to 1,000°C. The upstream sensors utilize fast-acting ceramic internal heater elements that achieve stoichiometric closed-loop operating temperatures in seconds, minimizing cold-start tailpipe emissions. Each unit features OEM-calibrated wiring lengths, factory-style weather-sealed locking connectors, and pre-threaded M18x1.5 bungs for true plug-and-play installation without wire splicing or pin repinning.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 Upstream Oxygen Sensors (Air-Fuel Ratio Sensors)\u003c\/li\u003e\n  \u003cli\u003e2 Downstream Oxygen Sensors\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;\"\u003e2007-2011 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;\"\u003e3UR-FE \/ XK50\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;\"\u003e234-9026, 234-4260, 234-4624\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\u003e2007-2011 Toyota Tundra 5.7L V8 (Base, SR5, Limited, Platinum)\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 XK50 Tundra?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2007-2011 Toyota Tundra equipped with the \u003cstrong\u003e3UR-FE\u003c\/strong\u003e 5.7L V8 engine.\u003c\/p\u003e\n\n\u003ch4\u003eShould anti-seize be applied to the sensor threads during installation?\u003c\/h4\u003e\n\u003cp\u003eApply high-temperature anti-seize exclusively to the threaded body while taking extreme care to avoid contaminating the sensor probe tip.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Workhorse Standard\u003c\/h3\u003e\n\u003cp\u003eHeavy towing and extreme payload demands place sustained high exhaust gas temperatures on the Tundra powertrain; refreshing your complete oxygen sensor suite ensures peak combustion efficiency, maintains engine torque under load, and protects your catalytic converters from rich unburnt fuel wash.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67895996186872,"sku":"DS-E6V3XGB81","price":129.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/oxygen-sensors-for-toyota-tundra-2007-2011-5-7l-upstream-downstream-1.jpg?v=1793290629","url":"https:\/\/performancechiptuning.com\/products\/oxygen-sensors-for-toyota-tundra-2007-2011-5-7l-upstream-downstream","provider":"Performance Chip Tuning","version":"1.0","type":"link"}