{"product_id":"walker-350-34509-oxygen-sensor","title":"Walker 350-34509 Oxygen Sensor - Center, Downstream Left or Upstream","description":"\u003ch2\u003eOverview of Walker 350-34509 Oxygen Sensor\u003c\/h2\u003e\u003cp\u003eThe Walker 350-34509 oxygen sensor is designed specifically for select Audi and Volkswagen models, including the A4, A4 Quattro, A6, A6 Quattro, Bora, and Polo. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor with 4-wire design for reliable operation\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Audi and Volkswagen models such as A4, A6, Bora, and Polo\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18.0 mm thread diameter for secure installation\u003c\/li\u003e\n\u003cli\u003e21.18 inches wiring harness length and 24.72 inches overall length for proper fitment\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for exact OEM compatibility\u003c\/li\u003e\n\u003cli\u003e20 gauge wire for durability and signal integrity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Walker oxygen sensor (part number 350-34509) is a heated sensor designed to provide fast and accurate readings of oxygen levels in the exhaust gases. The 4-wire configuration includes two wires for the heating element and two for the sensor signal, ensuring quicker sensor activation and improved emissions control. The sensor features a threaded mounting type with an 18.0 mm diameter, allowing for a secure and precise fit in the exhaust system. The wiring harness length of 21.18 inches and overall length of 24.72 inches are engineered to match the specific routing requirements of compatible Audi and Volkswagen vehicles. The radiused polygon male connector ensures a proper connection with the vehicle’s wiring harness, reducing the risk of electrical issues.\u003c\/p\u003e\u003ch2\u003eWalker Products Aftermarket Line\u003c\/h2\u003e\u003cp\u003eWalker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM specifications. This product line focuses on delivering reliable and durable parts for emission sensors, including oxygen sensors like the 350-34509. By using Walker Products Aftermarket parts, technicians and vehicle owners can maintain proper emissions performance and comply with environmental regulations.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate air-fuel ratio readings for improved engine efficiency\u003c\/li\u003e\n\u003cli\u003eHelps resolve check engine light codes related to oxygen sensor failure\u003c\/li\u003e\n\u003cli\u003eReduces emissions by ensuring proper catalytic converter function\u003c\/li\u003e\n\u003cli\u003ePrevents rough idling and poor fuel economy caused by faulty sensors\u003c\/li\u003e\n\u003cli\u003eSupports smooth engine performance in Audi A4, A6, and Volkswagen Bora and Polo models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the vehicle is cool before removing the old sensor to avoid burns\u003c\/li\u003e\n\u003cli\u003eUse appropriate oxygen sensor socket for threaded removal and installation\u003c\/li\u003e\n\u003cli\u003eVerify connector type matches the vehicle harness before installation\u003c\/li\u003e\n\u003cli\u003eDo not over-tighten the sensor; follow manufacturer torque specifications\u003c\/li\u003e\n\u003cli\u003eCheck wiring harness routing to prevent damage or interference\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker oxygen sensors are manufactured to meet strict quality standards for durability and performance. The 350-34509 sensor undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Walker Products Aftermarket parts typically include coverage against defects in materials and workmanship to provide confidence in product longevity.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43538307645621,"sku":"DKHD-350-34509","price":72.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35034509_Fro_86de613c-30e3-4b98-9180-141ba0a29df9.jpg?v=1774892103","url":"https:\/\/www.partcatalog.com\/products\/walker-350-34509-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}