{"product_id":"htmxja-oxygen-o2-sensor-4-piece-kit-for-ford-mazda-v6-3-0l-3-7l-upstream-downstream-direct-fit-replacement","title":"HTMXJA Oxygen O2 Sensor 4-Piece Kit for Ford \u0026 Mazda V6 (3.0L–3.7L) – Upstream \u0026 Downstream, Direct-Fit Replacement","description":"\u003cstrong\u003eHTMXJA 4-piece upstream and downstream oxygen sensor set replaces OE#234-5038 and 234-4490 to restore accurate air-fuel monitoring and emissions performance on compatible Ford and Mazda V6 vehicles.\u003c\/strong\u003e\n\n\u003cp\u003eThis complete four-sensor kit from HTMXJA is engineered as a direct-fit replacement for a wide range of Ford, Lincoln, Mercury and Mazda models with 3.0L–3.7L engines from model years 2010–2016. Each sensor follows OEM dimensions so installation requires no modification and plugs into factory harnesses. The set includes both upstream (pre-catalyst) and downstream (post-catalyst) sensors to give you full control of the engine control module's (ECM) oxygen feedback loop after a failure or when restoring emissions readiness.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engine combinations will accept these HTMXJA oxygen sensors?\u003c\/h3\u003e\n\u003cp\u003eThese sensors are labeled to fit many Ford and Mazda V6 petrol engines across model years 2010–2016. Always verify your vehicle’s OE part number against 234-5038 or 234-4490 and check connector style before ordering to ensure correct fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFord Edge 3.7L \u0026amp; 3.5L (2011–2014)\u003c\/li\u003e\n  \u003cli\u003eFord F-150 and Mustang 3.7L (2011–2014)\u003c\/li\u003e\n  \u003cli\u003eExplorer 3.5L (2011–2015)\u003c\/li\u003e\n  \u003cli\u003eEscape\/Fusion\/Mariner\/Milan\/CX-9\/Tribute 3.0L–3.7L (2010–2015)\u003c\/li\u003e\n  \u003cli\u003eLincoln MKZ\/MKS\/MKX\/MKT and Mercury models listed in spec\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these sensors affect fuel economy and emissions monitoring?\u003c\/h3\u003e\n\u003cp\u003eWorn or failing oxygen sensors send incorrect voltage signals to the ECM, which can force the engine into an aggressive enrichment or lean strategy. Replacing faulty upstream and downstream sensors helps the ECM maintain the intended air-fuel ratio, improving combustion efficiency and helping the catalytic converter work as designed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores correct oxygen-voltage feedback for the ECM\u003c\/li\u003e\n  \u003cli\u003eHelps return engine control to factory fuel trims\u003c\/li\u003e\n  \u003cli\u003eSupports accurate downstream catalyst monitoring and OBD readiness\u003c\/li\u003e\n  \u003cli\u003eMay reduce rough idle and fuel-wasting conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the build quality and warranty details for HTMXJA sensors?\u003c\/h3\u003e\n\u003cp\u003eHTMXJA sensors are manufactured from corrosion-resistant materials and designed to meet OEM fit, form and connector specifications for straightforward installation. The kit comes with a six-month warranty and is intended as a plug-and-play replacement for listed OE reference numbers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable sensing element and stainless housing\u003c\/li\u003e\n  \u003cli\u003eFactory-style connector and wiring length for direct fit\u003c\/li\u003e\n  \u003cli\u003eSix-month limited warranty included\u003c\/li\u003e\n  \u003cli\u003eSold as a four-piece set to cover upstream and downstream positions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and verify these oxygen sensors after replacement?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typically simple with common hand tools and a sensor socket; always allow the exhaust to cool before starting. After installation, clear any stored codes with an OBD-II scanner and perform a short test drive to confirm the ECU detects correct sensor operation and returns normal fuel trim values.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEnsure vehicle is cool; disconnect the battery per procedure\u003c\/li\u003e\n  \u003cli\u003eUse an oxygen sensor socket or crowfoot to avoid damage\u003c\/li\u003e\n  \u003cli\u003eClear codes and cycle the ignition to reset readiness monitors\u003c\/li\u003e\n  \u003cli\u003eVerify no exhaust leaks at threads and check for CEL absence\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This HTMXJA four-pack is suited for DIY mechanics, independent repair shops and fleet owners who need a cost-effective, direct-replacement oxygen sensor solution for 2010–2016 Ford, Lincoln, Mercury and Mazda V6 models. Choose this kit when OE part numbers 234-5038 or 234-4490 match your vehicle and you want plug-in compatibility with OEM-style connectors and durable materials for reliable emissions and fuel-trim feedback.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these HTMXJA oxygen sensors fit my 2012 Ford Explorer 3.5L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit lists Explorer 3.5L for 2011–2015; confirm your OE number (234-5038 or 234-4490) before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What warranty covers the HTMXJA O2 sensors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The sensors include a six-month limited warranty; save your purchase details for any warranty claims.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HTMXJA","offers":[{"title":"Default Title","offer_id":67586292580537,"sku":"B0F8GT7R14","price":148.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/htmxja-front-packaging-four-sensors.jpg?v=1790482222","url":"https:\/\/redleafauto.ca\/products\/htmxja-oxygen-o2-sensor-4-piece-kit-for-ford-mazda-v6-3-0l-3-7l-upstream-downstream-direct-fit-replacement","provider":"Redleaf Auto","version":"1.0","type":"link"}