{"product_id":"o2-oxygen-sensor-upstream-downstream-for-ford-f-350-super-duty-2012-2020-6-2l","title":"O2 Oxygen Sensor Upstream Downstream for Ford F-350 Super Duty (2012-2020) 6.2L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit O2 Sensor Kit for 2012-2020 Ford F-350 (P473\/P558)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This 4-piece oxygen sensor kit monitors pre- and post-catalyst exhaust oxygen on the 2012-2020 Ford F-350 \u003cstrong\u003e6.2L Boss V8\u003c\/strong\u003e for closed-loop fuel control.\u003c\/p\u003e\u003ch3\u003eThe Stock Ford F-350 Sensor Failure\u003c\/h3\u003e\u003cp\u003eOn \u003cstrong\u003eP473\u003c\/strong\u003e and \u003cstrong\u003eP558\u003c\/strong\u003e Super Duty trucks with the \u003cstrong\u003e6.2L Boss V8\u003c\/strong\u003e, heavy towing exhaust heat and moisture condensation cause thermal shock across factory zirconia ceramic sensing elements. Over time, carbon fouling and internal heater circuit burnout degrade voltage switching speed and accuracy. Sluggish upstream signals corrupt fuel trims, triggering \u003cstrong\u003eP0133\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0155\u003c\/strong\u003e, or \u003cstrong\u003eP0171\/P0174\u003c\/strong\u003e codes, while degraded downstream units trip false \u003cstrong\u003eP0420\/P0430\u003c\/strong\u003e catalyst efficiency faults.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms of a Failing OEM Sensor\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Engine Light:\u003c\/strong\u003e Heater or response faults including \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0155\u003c\/strong\u003e, and \u003cstrong\u003eP0420\/P0430\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Trim Surge:\u003c\/strong\u003e Stalled voltage causes rough idle and exhaust odor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoor Towing MPG:\u003c\/strong\u003e Open-loop enrichment drops economy and fails emissions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit O2 Solution\u003c\/h3\u003e\u003cp\u003eThis matched 4-sensor kit directly replaces OEM part numbers \u003cstrong\u003e234-5097\u003c\/strong\u003e (upstream) and \u003cstrong\u003e234-4576\u003c\/strong\u003e (downstream) to restore factory closed-loop response across both exhaust banks. Each sensor utilizes a high-purity zirconia ceramic element inside a laser-welded stainless steel housing with dual-shielded ports that resist thermal shock and condensate. Factory-spec internal heater windings reach rapid light-off temperatures, while OE-length pigtails and keyed weatherpack connectors ensure plug-and-play installation 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;\"\u003e2012-2020 Ford F-350\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 \/ P473 \u0026amp; 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;\"\u003eEmissions \u0026amp; Substrate\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eHeated Zirconia Ceramic \/ Direct-Fit\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 Cutting or Welding)\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\u003e2012-2020 Ford F-350 Super Duty 6.2L V8 (2 Upstream, 2 Downstream)\u003c\/li\u003e\n\u003cli\u003e2012-2020 Ford F-250 Super Duty 6.2L V8 (confirm 2012-2016 vs. 2017-2020)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment\u003c\/h3\u003e\u003ch4\u003eDoes this fit the P473 \/ P558 F-350?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Direct fit for the 2012-2020 Ford F-350 with the \u003cstrong\u003e6.2L Boss V8\u003c\/strong\u003e. \u003cstrong\u003eExcludes 6.7L diesel, 6.8L V10, and 7.3L V8.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0135 and P0420\/P0430 codes?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, if sensor-related.\u003c\/strong\u003e Replacing \u003cstrong\u003e234-5097\u003c\/strong\u003e and \u003cstrong\u003e234-4576\u003c\/strong\u003e clears heater faults; persistent \u003cstrong\u003eP0420\/P0430\u003c\/strong\u003e requires catalyst checks.\u003c\/p\u003e\u003ch4\u003eAre OE connectors included?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Factory plugs and pre-coated threads torque to 30 lb-ft.\u003c\/p\u003e\u003ch3\u003eThe Ford Heavy-Duty Standard\u003c\/h3\u003e\u003cp\u003eBuilt for towing heat, this sensor set restores fuel trim precision on your \u003cstrong\u003e6.2L Boss V8\u003c\/strong\u003e, keeping your \u003cstrong\u003eP473\u003c\/strong\u003e or \u003cstrong\u003eP558\u003c\/strong\u003e code-free.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68119438852344,"sku":"DS-E1Q6CR5LL","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-350-super-duty-2012-2020-6-2l-1.jpg?v=1794721707","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-ford-f-350-super-duty-2012-2020-6-2l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}