{"product_id":"o2-oxygen-sensor-upstream-downstream-for-ford-f-250-super-duty-2017-2020-6-2l","title":"O2 Oxygen Sensor Upstream Downstream for Ford F-250 Super Duty (2017-2020) 6.2L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit O2 Sensor Kit for 2017-2020 Ford F-250 (P558)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This four-sensor kit restores closed-loop air-fuel ratio and catalyst monitoring on the 2017-2020 Ford F-250 \u003cstrong\u003eP558\u003c\/strong\u003e \u003cstrong\u003e6.2L Boss V8\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eThe Stock Ford F-250 Sensor Failure\u003c\/h3\u003e\u003cp\u003eFactory oxygen sensors on the \u003cstrong\u003eP558\u003c\/strong\u003e F-250 endure severe towing heat soak and thermal cycling inside the exhaust manifolds. Over time, carbon soot, moisture, and silica fouling degrade the zirconia element and spike internal heater resistance. When the \u003cstrong\u003e6.2L Boss V8\u003c\/strong\u003e ECU detects sluggish voltage switching or heater circuit burnout, it logs \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0155\u003c\/strong\u003e, or \u003cstrong\u003eP0171\/P0174\u003c\/strong\u003e codes and forces rich open-loop fueling.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms of a Failing OEM Oxygen Sensor\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Engine Light \/ DTCs:\u003c\/strong\u003e Logs \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0155\u003c\/strong\u003e, or \u003cstrong\u003eP0420\/P0430\u003c\/strong\u003e from heater burnout or slow switching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErratic Fuel Trims:\u003c\/strong\u003e Delayed sensor feedback causes rough idle and hesitation under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Fuel Usage:\u003c\/strong\u003e Open-loop default fueling increases consumption and risks catalyst overheating.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Upstream \u0026amp; Downstream O2 Solution\u003c\/h3\u003e\u003cp\u003eReplacing all four sensors as a matched set restores balanced Bank 1 and Bank 2 feedback across the \u003cstrong\u003e6.2L Boss V8\u003c\/strong\u003e exhaust. Each unit pairs a laser-welded stainless housing with a ceramic zirconia core and fast-response heater for rapid closed-loop activation. Engineered to OEM \u003cstrong\u003e234-5097\u003c\/strong\u003e and \u003cstrong\u003e234-4576\u003c\/strong\u003e specifications, these direct-fit sensors include factory weatherpack connectors that plug straight into OEM chassis harnesses without splicing.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2 Upstream Oxygen Sensors (\u003cstrong\u003e234-5097\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003e2 Downstream Oxygen Sensors (\u003cstrong\u003e234-4576\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\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;\"\u003e2017-2020 Ford F-250\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;\"\u003e6.2L Boss V8 \/ P558\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;\"\u003eSensor Architecture\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDirect-Fit Heated Zirconia (Upstream \u0026amp; Downstream)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eInstallation Type\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDirect Bolt-On OEM Replacement (No Splicing)\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;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e234-5097, 234-4576\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2017-2020 Ford F-250 Super Duty 6.2L V8 (2 Upstream, 2 Downstream)\u003c\/li\u003e\n\u003cli\u003eNote: 2012-2016 F-250 6.2L and 2012-2020 F-350 6.2L use separate listings; confirm engine before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the P558 F-250?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Direct fit for the 2017-2020 Ford F-250 \u003cstrong\u003e6.2L Boss V8\u003c\/strong\u003e. \u003cstrong\u003eExcludes 6.7L Power Stroke, 7.3L V8, and 2012-2016 models.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0135\/P0155 codes?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Fresh \u003cstrong\u003e234-5097\u003c\/strong\u003e and \u003cstrong\u003e234-4576\u003c\/strong\u003e sensors restore proper heater resistance and switching once cleared.\u003c\/p\u003e\u003ch4\u003eAre factory connectors included for installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Pre-wired OEM plugs ensure plug-and-play installation after cleaning exhaust bung threads.\u003c\/p\u003e\u003ch3\u003eThe Ford Heavy-Duty Standard\u003c\/h3\u003e\u003cp\u003eBuilt for sustained towing heat on the \u003cstrong\u003eP558\u003c\/strong\u003e chassis, this matched sensor kit maintains accurate fueling and reliable emissions compliance.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68119440228600,"sku":"DS-E636XYWIL","price":96.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-ford-f-250-super-duty-2017-2020-6-2l-1.jpg?v=1794721758","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-ford-f-250-super-duty-2017-2020-6-2l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}