{"product_id":"walker-350-34437-oxygen-sensor","title":"Walker 350-34437 Oxygen Sensor - Downstream, Downstream Left or Downstream Right","description":"\u003ch2\u003eOverview of Walker 350-34437 Oxygen Sensor\u003c\/h2\u003e\u003cp\u003eThe Walker 350-34437 oxygen sensor is designed specifically for select BMW and Land Rover models, providing precise emissions control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor with 4-wire configuration\u003c\/li\u003e\n\u003cli\u003eSpecific fit for BMW 3 Series, 5 Series, Z Series, and Land Rover Range Rover, X3, X5\u003c\/li\u003e\n\u003cli\u003e36.54-inch wiring harness length with 20-gauge wire\u003c\/li\u003e\n\u003cli\u003eThread diameter of 18.0 mm for threaded mounting\u003c\/li\u003e\n\u003cli\u003eRadiused polygon female connector for reliable connection\u003c\/li\u003e\n\u003cli\u003eOverall length of 40.08 inches for proper fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Walker Products Aftermarket oxygen sensor (part number 350-34437) is engineered to meet the exact specifications of various BMW and Land Rover vehicles, including models such as the BMW 320i, 328i, 330i, 525i, and Land Rover Range Rover, X3, and X5. The sensor is heated, which allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire design supports both the sensor signal and heater circuit, ensuring accurate oxygen level readings and optimal engine management.\u003c\/p\u003e\u003cp\u003eThe sensor’s wiring harness length of 36.54 inches and overall length of 40.08 inches provide sufficient reach for installation in the designated engine compartments. The 20-gauge wire ensures durability and resistance to heat and vibration. The threaded mounting type with an 18.0 mm thread diameter allows for secure attachment to the exhaust system. The radiused polygon female connector ensures a precise and stable electrical connection, minimizing the risk of disconnection or signal loss.\u003c\/p\u003e\u003ch2\u003eWalker Products Aftermarket Line\u003c\/h2\u003e\u003cp\u003eThe Walker Products Aftermarket line focuses on delivering reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, designed to provide consistent performance and durability for specific vehicle applications. By using Walker Products Aftermarket parts, technicians and vehicle owners can maintain proper emissions function and engine efficiency with components tailored to their vehicle’s requirements.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for faulty or failing oxygen sensors in BMW 3 Series and 5 Series models\u003c\/li\u003e\n\u003cli\u003eRestores accurate air-fuel mixture readings for improved engine performance\u003c\/li\u003e\n\u003cli\u003eHelps resolve check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eReduces emissions by ensuring proper catalytic converter operation\u003c\/li\u003e\n\u003cli\u003ePrevents rough idling and poor fuel economy caused by sensor malfunction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure vehicle compatibility with the specific BMW or Land Rover model before installation\u003c\/li\u003e\n\u003cli\u003eUse proper tools to avoid damaging the threaded sensor or connector\u003c\/li\u003e\n\u003cli\u003eCheck wiring harness routing to prevent contact with hot exhaust components\u003c\/li\u003e\n\u003cli\u003eVerify connector engagement to avoid electrical issues\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer torque specifications for sensor mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable operation and longevity. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports vehicle performance.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43538268127413,"sku":"DKHD-350-34437","price":59.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35034437_Fro.jpg?v=1774892082","url":"https:\/\/www.partcatalog.com\/products\/walker-350-34437-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}