{"product_id":"o2-oxygen-sensor-downstream-for-lexus-rx-2010-2015-3-5l","title":"O2 Oxygen Sensor Downstream for Lexus RX (2010-2015) 3.5L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003ePrecision Downstream Oxygen Sensor for 2010-2015 Lexus RX (AL10)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The downstream O2 sensor monitors post-catalytic converter exhaust gas conversion efficiency on the 2010-2015 Lexus RX to ensure precise closed-loop fuel management and prevent diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lexus RX Catalyst Monitoring Degradation\u003c\/h3\u003e\n\u003cp\u003eWith prolonged heat cycling and operating mileage, factory downstream heated exhaust gas sensors on the \u003cstrong\u003eAL10\u003c\/strong\u003e chassis suffer from internal ceramic element contamination, harness thermal fatigue, and silica poisoning. Degradation of the OEM zirconia sensing core leads to delayed voltage response times, false diagnostic trouble codes (such as P0420\/P0430 catalyst below efficiency threshold), degraded fuel trim calibration, and unnecessary failed emissions testing on \u003cstrong\u003e2GR-FE\u003c\/strong\u003e V6 powertrains.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to direct-fit OE specifications, this sensor utilizes a laser-welded stainless steel sensor body with an integrated submersible planar ceramic sensing element. Designed to resist extreme exhaust thermal shock and harsh road environment corrosion, it delivers accurate 0.1V to 0.9V switching metrics to the vehicle PCM. High-temp cross-linked polyethylene wiring and a factory-pinned watertight pigtail ensure drop-in installation without splicing, restoring precise post-cat catalytic performance monitoring.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1PCS Oxygen Sensor (Downstream)\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;\"\u003e2010-2015 Lexus RX\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;\"\u003e2GR-FE 3.5L V6 \/ AL10\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;\"\u003e275 hp \/ 257 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;\"\u003eS4-4400, 250-24870, 25024870, 350-34074, 35034074, 89465-47080, 8946547080\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\u003e2010-2015 Lexus RX 3.5L (Downstream Position)\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 AL10 RX?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2010-2015 Lexus RX equipped with the \u003cstrong\u003e2GR-FE\u003c\/strong\u003e 3.5L V6 engine in the downstream post-catalytic converter position. Always verify downstream harness length and plug orientation before installation.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need special tools or anti-seize compound for installation?\u003c\/h4\u003e\n\u003cp\u003eAn oxygen sensor socket (22mm or 7\/8-inch) is required for removal and torquing, and anti-seize should be used sparingly on the threads only while keeping the sensing tip clean.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lexus Precision Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the refined standards of Toyota-Lexus luxury platforms, this sensor maintains clean emissions metrics, eliminates lingering CEL warnings, and preserves factory fuel trim tables without signal drift.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67551486542072,"sku":"DS-E9NWMTWDU","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-lexus-rx-2010-2015-3-5l-1.jpg?v=1790797142","url":"https:\/\/performancechiptuning.com\/fr\/products\/o2-oxygen-sensor-downstream-for-lexus-rx-2010-2015-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}