{"product_id":"walker-350-34220-oxygen-sensor","title":"Walker 350-34220 Oxygen Sensor - Downstream","description":"\u003ch2\u003eOverview of Walker 350-34220 Oxygen Sensor for BMW M3, Z3, Z4\u003c\/h2\u003e\u003cp\u003eThe Walker 350-34220 oxygen sensor is designed specifically for select BMW models including the M3, Z3, and Z4. 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 configuration\u003c\/li\u003e\n\u003cli\u003eSpecific fit for BMW M3, Z3, and Z4 models\u003c\/li\u003e\n\u003cli\u003e32.99-inch wiring harness length for flexible installation\u003c\/li\u003e\n\u003cli\u003e20 gauge wire for reliable signal transmission\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for secure connection\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eOverall length of 36.54 inches for proper fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWalker Products Aftermarket Line Details\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components engineered to meet or exceed OEM specifications. The line emphasizes precise fitment and durability, making it suitable for maintaining factory-level emissions performance on vehicles like the BMW M3, Z3, and Z4.\u003c\/p\u003e\u003ch2\u003eProduct Features and Technical Specifications\u003c\/h2\u003e\u003cp\u003eThe Walker 350-34220 oxygen sensor features a heated sensor element that allows for faster warm-up times and improved accuracy in measuring exhaust oxygen levels. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring stable operation. The wiring harness length of approximately 33 inches provides sufficient reach for installation without excess slack. The radiused polygon male connector is designed for a secure and corrosion-resistant connection, while the threaded mounting type with an 18.0 mm diameter ensures compatibility with the designated BMW models.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate air-fuel ratio readings for engine control units\u003c\/li\u003e\n\u003cli\u003eHelps resolve rough idling and poor fuel economy issues\u003c\/li\u003e\n\u003cli\u003eReduces emissions by ensuring proper catalytic converter function\u003c\/li\u003e\n\u003cli\u003eEliminates check engine light codes related to oxygen sensor failure\u003c\/li\u003e\n\u003cli\u003eImproves overall engine performance and drivability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 350-34220 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. The 32.99-inch wiring harness length allows for flexible routing, but avoid sharp bends or contact with hot exhaust components. Thread the sensor carefully into the exhaust manifold or pipe using the 18.0 mm threaded mount, and tighten to manufacturer torque specifications to prevent leaks.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. This part number 350-34220 undergoes rigorous testing to ensure reliable operation in BMW M3, Z3, and Z4 vehicles. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43538070175925,"sku":"DKHD-350-34220","price":83.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35034220_Fro.jpg?v=1774892019","url":"https:\/\/www.partcatalog.com\/products\/walker-350-34220-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}