{"product_id":"denso-234-4120-oxygen-sensor-downstream","title":"Denso 234-4120 Oxygen Sensor - Downstream","description":"\u003ch2\u003eReliable Oxygen Sensor for Audi Quattro Models\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style Oxygen Sensor 234-4120 is designed specifically for select Audi Quattro vehicles, including the A4, A5, A6, A7, A8, Q5, S4, S5, and SQ5. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Audi Quattro models\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 0.708 inch thread diameter\u003c\/li\u003e\n\u003cli\u003e19.69-inch wiring harness length with 4 wires\u003c\/li\u003e\n\u003cli\u003eMale connector for secure electrical connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Denso OE Style Product Line\u003c\/h2\u003e\u003cp\u003eThe OE Style line from Denso offers direct replacement parts engineered to meet original equipment specifications. The 234-4120 oxygen sensor maintains factory-level quality and fitment, ensuring compatibility and reliable performance for Audi Quattro vehicles. This product line focuses on precise fit and function, making it suitable for professional repairs and maintenance.\u003c\/p\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor features a heated design that accelerates sensor activation, reducing warm-up time and improving emissions control. The 19.69-inch wiring harness provides adequate length for installation without excess slack. With four wires and a male connector, the sensor integrates seamlessly with the vehicle’s existing wiring harness. The threaded mounting type with a 0.708-inch diameter ensures a secure and proper fit in the exhaust system.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate air-fuel ratio readings for Audi A4 Quattro and other compatible models\u003c\/li\u003e\n\u003cli\u003eHelps resolve check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by providing precise emissions data\u003c\/li\u003e\n\u003cli\u003eReduces exhaust emissions by maintaining proper sensor function\u003c\/li\u003e\n\u003cli\u003ePrevents rough idling and engine performance issues caused by faulty sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the vehicle is cool before removing the old oxygen sensor to avoid burns. Use appropriate tools to avoid damaging the threaded mounting. Verify the connector gender matches the vehicle harness for a secure connection. Follow manufacturer torque specifications when installing the sensor to prevent leaks or damage.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. The 234-4120 part number undergoes rigorous testing to ensure durability and reliable performance. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":52163107127477,"sku":"BBNF-234-4120","price":97.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2344120_Fro.jpg?v=1775590265","url":"https:\/\/www.partcatalog.com\/products\/denso-234-4120-oxygen-sensor-downstream","provider":"PartCatalog","version":"1.0","type":"link"}