{"product_id":"maxfavor-o2-oxygen-sensor-set-for-2002-2004-honda-cr-v-2-4l-upstream-downstream-direct-fit-oe-style-durability","title":"Maxfavor O2 Oxygen Sensor Set for 2002-2004 Honda CR-V 2.4L — Upstream \u0026 Downstream Direct-Fit, OE-Style Durability","description":"\u003cstrong\u003eThese MAXFAVOR parts are direct-fit upstream and downstream O2 (oxygen) sensors designed to replace factory units on 2002–2004 Honda CR-V 2.4L L4 models.\u003c\/strong\u003e\n\n\u003cp\u003eIf your CR-V is showing check-engine codes related to oxygen sensors or you want to restore proper air-fuel feedback, these MAXFAVOR replacements match the original equipment (OE) fitments 234-9005 and 234-4125. Manufactured to align with OE reference numbers such as 36531-PLM-A11 and 36531-PPA-305, the pair provides both the pre-catalytic (upstream) and post-catalytic (downstream) sensing required by the engine control system.\u003c\/p\u003e\n\n\u003ch3\u003eWill these sensors fit my 2002–2004 Honda CR-V?\u003c\/h3\u003e\n\u003cp\u003eYes—these sensors are listed specifically for 2002, 2003 and 2004 Honda CR-V EX, LX and Base trims with the 2.4L L4 engine. Confirm fit by comparing the part numbers and connector shape to your current sensor before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible model years: 2002, 2003, 2004\u003c\/li\u003e\n  \u003cli\u003eEngine: 2.4L inline-4 (L4)\u003c\/li\u003e\n  \u003cli\u003eTrims: EX, LX, Base\u003c\/li\u003e\n  \u003cli\u003eOE references included for verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these MAXFAVOR sensors compare to the original equipment?\u003c\/h3\u003e\n\u003cp\u003eThey are produced to match the dimensions, thread pitches and electrical connector types of the OEM components, enabling direct replacement without modifications. MAXFAVOR emphasizes durable materials and corrosion-resistant finishes to extend service life under typical driving conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit design mirrors OE shape and threading\u003c\/li\u003e\n  \u003cli\u003eElectrical connector matches factory harness\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant housing for longer durability\u003c\/li\u003e\n  \u003cli\u003eSold as an upstream and downstream set for complete replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I do during installation and initial checks?\u003c\/h3\u003e\n\u003cp\u003ePrepare by identifying the upstream (before catalytic converter) and downstream (after catalytic converter) sensor locations, and use the proper oxygen sensor socket for removal. Clean the threaded port, compare new and old sensors for identical connections, and tighten gently to avoid wire strain; clear any diagnostic codes after installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse an O2 sensor socket to remove the old sensor\u003c\/li\u003e\n  \u003cli\u003eCompare connectors and lengths before installing\u003c\/li\u003e\n  \u003cli\u003eClean threads and hand-start to avoid cross-threading\u003c\/li\u003e\n  \u003cli\u003eReconnect harness and clear diagnostic trouble codes if present\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the practical benefits of replacing both sensors at once?\u003c\/h3\u003e\n\u003cp\u003eReplacing both upstream and downstream sensors ensures consistent feedback to the engine control unit, which helps maintain stable fuel trims and proper catalytic converter monitoring. Replacing the pair reduces the chance of a remaining worn sensor triggering a new fault shortly after service.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores accurate air-fuel monitoring and emissions feedback\u003c\/li\u003e\n  \u003cli\u003eHelps stabilize fuel economy and drivability affected by bad sensors\u003c\/li\u003e\n  \u003cli\u003ePrevents repeat visits by addressing upstream and downstream simultaneously\u003c\/li\u003e\n  \u003cli\u003eIncludes OE cross-references for confident part matching\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This MAXFAVOR upstream and downstream oxygen sensor set is intended for owners and technicians working on 2002–2004 Honda CR-V models with the 2.4L L4 engine who need a direct-fit, cost-effective replacement. It suits DIY mechanics who can perform basic underbody work and professional shops seeking a reliable aftermarket option that aligns with factory specifications. Always verify part numbers and connector style against your vehicle before purchase.\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 match Honda OE numbers?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They reference OE numbers including 234-9005, 234-4125 and several 36531\/36532 Honda cross-references.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install these myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, with basic tools: an O2 sensor socket, thread cleaner, and care to avoid wire damage; clear codes after installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Maxfavor","offers":[{"title":"Default Title","offer_id":48086785097886,"sku":"B07K8BBM84","price":51.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/maxfavor-front-packaging-o2-sensors.jpg?v=1785905098","url":"https:\/\/northtrailauto.ca\/products\/maxfavor-o2-oxygen-sensor-set-for-2002-2004-honda-cr-v-2-4l-upstream-downstream-direct-fit-oe-style-durability","provider":"North Trail Auto","version":"1.0","type":"link"}