{"product_id":"a-premium-downstream-o2-oxygen-sensor-for-honda-acura-4-blade-heated-direct-fit-rear","title":"A-Premium Downstream O2 Oxygen Sensor for Honda \u0026 Acura — 4-Blade Heated, Direct-Fit (Rear)","description":"\u003cp\u003e\u003cstrong\u003eA-Premium downstream O2 oxygen sensor is a direct-fit, 4-blade heated replacement engineered to restore accurate exhaust oxygen readings on many Honda and Acura V6 and some L4 models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis downstream (rear) oxygen sensor is built for owners and technicians who need a reliable plug-and-play replacement without modifying harnesses or exhaust hardware. It uses a heated sensing element and a threaded mount for straightforward installation and includes a 4-blade (4-terminal) connector to match factory wiring. The part is matched to common OEM reference numbers, making it suitable across numerous model years and trims for both Acura and Honda vehicles.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and positions does this A-Premium sensor fit?\u003c\/h3\u003e\n\u003cp\u003eThe sensor supports multiple downstream positions (rear and some front\/rear applications depending on year and model). Compatibility covers a broad list of Acura MDX, RDX, RL, TL, TLX, ZDX and Honda Accord, Crosstour, Odyssey, Pilot, Ridgeline, Passport and more, across various years and engine sizes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits downstream rear applications for many 3.5L and 3.7L V6 Acura\/Honda models (MDX, RLX, RDX, TLX, TL, ZDX).\u003c\/li\u003e\n  \u003cli\u003eCovers downstream front or rear positions on earlier MDX, RL and TL model years and selected TSX models.\u003c\/li\u003e\n  \u003cli\u003eIncludes newer model coverage such as RDX 22–23 L4 and Accord 22 L4 where listed.\u003c\/li\u003e\n  \u003cli\u003eReference numbers matched: 36542-R70-A01, 250-24785 and 2344461 for easier cross-checking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this sensor help performance and diagnostics?\u003c\/h3\u003e\n\u003cp\u003eAs a downstream sensor, it monitors the catalytic converter’s efficiency and helps the vehicle’s ECU verify emissions control. Replacing a failing sensor can clear emission-related fault codes and ensure the engine management system has correct feedback for long-term adjustments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeated element speeds warm-up for quicker, stable readings after cold starts.\u003c\/li\u003e\n  \u003cli\u003eAccurate feedback aids catalytic converter monitoring and emissions diagnostics.\u003c\/li\u003e\n  \u003cli\u003eFour-terminal connector matches factory harnesses to avoid splicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the technical specs and installation details?\u003c\/h3\u003e\n\u003cp\u003eThe A-Premium sensor is a threaded, heated oxygen sensor with a male connector and a 4-blade terminal configuration. It ships singly in a protective box and is intended to be installed in the downstream position specified for each vehicle; basic hand tools and an oxygen sensor socket are usually sufficient for replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTerminal quantity: 4-blade (4-pin) male connector for direct-fit wiring.\u003c\/li\u003e\n  \u003cli\u003eSensor type: heated zirconia-style oxygen sensor for reliable response.\u003c\/li\u003e\n  \u003cli\u003eMounting type: threaded—fits factory sensor ports without adapters.\u003c\/li\u003e\n  \u003cli\u003ePackage: one oxygen sensor, boxed for shipping protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I swap this sensor myself or should a shop install it?\u003c\/h3\u003e\n\u003cp\u003eMany owners with basic mechanical skills can replace an oxygen sensor using an oxygen-sensor socket and standard hand tools. However, ease depends on vehicle ground clearance and sensor accessibility; seized sensors or corroded threads may require penetrants, heat, or professional tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical DIY time: 30–90 minutes depending on access and rust.\u003c\/li\u003e\n  \u003cli\u003eUse anti-seize on threads only if recommended by the installer; avoid contaminating the sensing tip.\u003c\/li\u003e\n  \u003cli\u003eAfter replacement, clear codes and perform a short drive cycle to confirm correct operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This A-Premium downstream O2 sensor is intended for vehicle owners, independent mechanics, and repair shops seeking a cost-effective, direct-fit replacement for downstream oxygen sensing on compatible Honda and Acura models. Choose this sensor if you need a heater-equipped, threaded unit with a 4-blade connector that matches common OEM reference numbers and aims to restore proper emissions monitoring and ECU feedback without wiring changes.\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: Is this sensor a direct replacement for my Honda\/Acura?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If your vehicle matches the listed years, engines and reference numbers (e.g. 36542-R70-A01), this 4-blade heated sensor is a direct-fit replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the sensor include a heater and how many pins?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it is a heated oxygen sensor with a 4-blade (4-pin) male connector for factory compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":67591837778105,"sku":"B07CRYV4B8","price":67.12,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/a-premium-downstream-o2-sensor-front-view.jpg?v=1790559127","url":"https:\/\/redleafauto.ca\/products\/a-premium-downstream-o2-oxygen-sensor-for-honda-acura-4-blade-heated-direct-fit-rear","provider":"Redleaf Auto","version":"1.0","type":"link"}