{"product_id":"htmxja-oxygen-o2-sensor-kit-for-2003-2007-honda-accord-l4-2-4l-upstream-downstream-direct-fit-prewired","title":"HTMXJA Oxygen O2 Sensor Kit for 2003–2007 Honda Accord L4 2.4L — Upstream \u0026 Downstream Direct-Fit, Prewired","description":"\u003cstrong\u003eHTMXJA 2-piece oxygen sensor kit replaces the upstream and downstream O2 sensors on 2003–2007 Honda Accord L4 2.4L models (OE# 234-9040 upstream, 234-4797 downstream).\u003c\/strong\u003e\n\n\u003cp\u003eIf your Accord is showing reduced fuel economy, rough idling, or a check engine light related to oxygen sensors, this HTMXJA kit provides direct-fit replacements engineered to match OEM specs. The pair includes one upstream (pre-cat) and one downstream (post-cat) sensor designed specifically for 2003–2007 Accord L4 2.4L engines. Each sensor is built from corrosion-resistant materials and prewired for an easier installation compared with generic aftermarket units.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these O2 sensors affect my Accord’s performance?\u003c\/h3\u003e\n\u003cp\u003eOxygen sensors play an important role in helping the engine control module adjust air-fuel mixture for efficient combustion. Worn or failing sensors can cause higher emissions and poorer fuel economy; installing fresh sensors helps restore more accurate feedback to the engine computer. These HTMXJA sensors are calibrated to provide stable voltage and signal response similar to OE components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores accurate oxygen readings for the engine control unit.\u003c\/li\u003e\n  \u003cli\u003eImproves fuel trim and can reduce fuel consumption variability.\u003c\/li\u003e\n  \u003cli\u003eHelps the catalytic converter operate under correct conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these fit my vehicle and match OEM part numbers?\u003c\/h3\u003e\n\u003cp\u003eThis kit is specified for the Honda Accord model years 2003 through 2007 with the 2.4L L4 engine. HTMXJA lists compatibility with common reference numbers so you can confirm fit before ordering. The kit corresponds to OE numbers 234-9040 for the upstream sensor and 234-4797 for the downstream sensor, and cross-references other OEM codes for peace of mind.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect fit for Accord 2003–2007 L4 2.4L engines.\u003c\/li\u003e\n  \u003cli\u003eOE\/Reference numbers: 234-9040 (upstream) and 234-4797 (downstream).\u003c\/li\u003e\n  \u003cli\u003eCross-references include 13704, 2344363, 36531RAAA01, 36532RAAA11, and more.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what should I expect?\u003c\/h3\u003e\n\u003cp\u003eHTMXJA sensors are manufactured to OEM dimensions so they install without modifications in most cases. Basic hand tools are usually sufficient, though an oxygen sensor socket or wrench will make removal and installation easier. If you’re replacing both sensors at once, labor time is reduced and electrical connectors are designed to match factory harnesses to minimize hassle.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePlug-and-play connectors compatible with factory wiring harnesses.\u003c\/li\u003e\n  \u003cli\u003eStandard sensor thread and heat shield for straightforward fitment.\u003c\/li\u003e\n  \u003cli\u003eRecommended tools: O2 sensor socket, ratchet, penetrating oil for stubborn threads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and quality assurances come with the kit?\u003c\/h3\u003e\n\u003cp\u003eHTMXJA provides a six-month warranty covering defects and manufacturing faults, allowing you to verify fit and function after installation. Sensors are constructed from corrosion-resistant materials and undergo basic quality checks to ensure consistent signaling. Always verify OE numbers and vehicle compatibility before purchase to avoid returns.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSix-month limited warranty against manufacturing defects.\u003c\/li\u003e\n  \u003cli\u003eManufactured materials designed for environmental durability.\u003c\/li\u003e\n  \u003cli\u003eShipped as a matched upstream and downstream set for consistent operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This HTMXJA two-piece O2 sensor kit is intended for owners and mechanics of 2003–2007 Honda Accord vehicles with the 2.4L L4 engine who need direct-fit upstream and downstream replacements that match OEM references. It’s suitable for DIYers comfortable with basic under-vehicle work and professional shops seeking a cost-effective OE-compatible replacement set.\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 sensors fit a 2005 Honda Accord 2.4L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This HTMXJA kit fits 2003–2007 Honda Accord models with the 2.4L L4 engine, including 2005.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What warranty does the HTMXJA O2 sensor kit include?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit includes a six-month limited warranty covering manufacturing defects.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HTMXJA","offers":[{"title":"Default Title","offer_id":67586952331449,"sku":"B0DN9KYSMM","price":96.33,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/htmxja-front-packaging-accord-o2-sensor-kit.jpg?v=1790497811","url":"https:\/\/redleafauto.ca\/products\/htmxja-oxygen-o2-sensor-kit-for-2003-2007-honda-accord-l4-2-4l-upstream-downstream-direct-fit-prewired","provider":"Redleaf Auto","version":"1.0","type":"link"}