{"product_id":"oxygen-sensors-for-ford-f-150-2017-2020-3-5l-turbo-upstream-downstream","title":"Oxygen Sensors for Ford F-150 (2017-2020) 3.5L Turbo Upstream \u0026 Downstream","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Oxygen Sensor Set for 2017-2020 Ford F-150 (P552)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Oxygen Sensor Set replaces fouled or degrading factory lambda sensors on the 2017-2020 Ford F-150 to restore closed-loop fuel trim accuracy and maintain target air-fuel ratios across both cylinder banks.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford F-150 Sensor Degradation \u0026amp; Carbon Contamination\u003c\/h3\u003e\n\u003cp\u003eThe twin-turbocharged \u003cstrong\u003e3.5L EcoBoost\u003c\/strong\u003e engine operates under high thermal stress and intense exhaust backpressure. Over time, soot from dual-injection direct fuel delivery and unburnt hydrocarbons coat the ceramic zirconia sensing elements of the stock lambda probes. This causes thermal shock degradation, sluggish switching frequencies, and skewed short-term fuel trims (STFT), ultimately leading to unmetered over-fueling, failed emissions compliance, catalyst overheating, and stubborn P0130-P0161 diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-temperature exhaust environments, this 4-piece oxygen sensor replacement kit utilizes heavy-gauge stainless steel housings that resist galvanic corrosion and exhaust thermal cycling. The upstream wideband sensors feature precision planar zirconia elements with internal heaters for rapid closed-loop activation, while the downstream post-cat sensors monitor catalytic efficiency with factory-calibrated switching thresholds. Each unit is equipped with OEM-spec pin terminals, pre-loomed heat-shielded wiring harnesses, and application-specific locking connectors to eliminate signal noise and harness splicing.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Upstream Left Oxygen Sensor (5-Wire, 234-5174)\u003c\/li\u003e\n  \u003cli\u003e1 x Upstream Right Oxygen Sensor (5-Wire, 234-5713)\u003c\/li\u003e\n  \u003cli\u003e2 x Downstream Oxygen Sensors (4-Wire, 234-8017 \/ 234-4961)\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: solid font-size: min-width:\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;\"\u003e2017-2020 Ford F-150\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;\"\u003e3.5L EcoBoost V6 \/ P552\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;\"\u003e375 hp \/ 470 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;\"\u003e234-5174, 234-5713, 234-8017, 234-4961\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\u003e2017-2020 Ford F-150 3.5L Turbo V6 (XL, XLT, Lariat, King Ranch, Platinum, Limited)\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 P552 F-150?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2017-2020 Ford F-150 equipped with the \u003cstrong\u003e3.5L EcoBoost\u003c\/strong\u003e engine. \u003cstrong\u003eDoes not fit 2.7L EcoBoost, 3.3L Duratec, or 5.0L Coyote V8 engine configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo these sensors require wire splicing or ECU recalibration during installation?\u003c\/h4\u003e\n\u003cp\u003eNo, these sensors feature factory-style terminal plugs for direct plug-in operation without wire modification, though performing an ECU KAM (Keep Alive Memory) reset after install is recommended to clear learned fuel trims.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Towing Standard\u003c\/h3\u003e\n\u003cp\u003eMaintain consistent stoichiometric control under severe towing loads and high manifold boost pressures with accurate, matched cross-bank oxygen metering built to endure heavy-duty truck cycles.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67592011055352,"sku":"DS-EWPYQ0GAX","price":117.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/oxygen-sensors-for-ford-f-150-2017-2020-3-5l-turbo-upstream-downstream-1.jpg?v=1791396167","url":"https:\/\/performancechiptuning.com\/products\/oxygen-sensors-for-ford-f-150-2017-2020-3-5l-turbo-upstream-downstream","provider":"Performance Chip Tuning","version":"1.0","type":"link"}