{"product_id":"walker-350-35131-oxygen-sensor-upstream","title":"Walker 350-35131 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of Walker OE Replacement Oxygen Sensor 350-35131\u003c\/h2\u003e\u003cp\u003eThe Walker OE Replacement Oxygen Sensor 350-35131 is designed specifically for select BMW models, providing accurate air-fuel mixture readings to optimize engine performance and emissions control. This heated, wide-band oxygen sensor ensures reliable operation in demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for faster warm-up and accurate readings\u003c\/li\u003e\n\u003cli\u003eWide-band sensor type for precise air-fuel ratio measurement\u003c\/li\u003e\n\u003cli\u003eSpecific fit for BMW models including 220i, 320i, 328i, 420i, 520i, X1, X3, X4, X5, and Z4\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with M18 x 1.5 thread size and 22mm wrench size\u003c\/li\u003e\n\u003cli\u003eFive-wire design with 20 gauge wire and rectangular male pin connector\u003c\/li\u003e\n\u003cli\u003eOverall length of 423mm for proper installation depth\u003c\/li\u003e\n\u003cli\u003eStandard replacement grade ensuring OEM-level performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWalker OE Replacement Product Line Details\u003c\/h2\u003e\u003cp\u003eThe OE Replacement line by Walker focuses on delivering direct-fit sensors that meet original equipment specifications. This ensures compatibility and performance comparable to factory-installed parts. The 350-35131 oxygen sensor is engineered to match the exact fit and function required by BMW vehicles, supporting emission control systems effectively.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Walker oxygen sensor features a heated element to reduce sensor warm-up time, enabling quicker feedback to the engine control unit. The wide-band sensor type provides a broad measurement range for accurate air-fuel ratio monitoring, essential for maintaining optimal combustion and reducing emissions. The sensor’s five-wire configuration and pin-type male terminal with a rectangular connector shape ensure secure electrical connections. Designed with a threaded mounting type (M18 x 1.5), it installs easily using a 22mm wrench. The 423mm overall length accommodates proper placement within the exhaust system. This sensor is a specific fit for various BMW models such as the 220i, 320i, 328i, 420i, 520i, and X series vehicles, ensuring precise compatibility.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate oxygen sensing for improved fuel efficiency\u003c\/li\u003e\n\u003cli\u003eHelps resolve engine performance issues related to faulty sensors\u003c\/li\u003e\n\u003cli\u003eReduces emissions by providing correct air-fuel ratio data\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers caused by sensor failure\u003c\/li\u003e\n\u003cli\u003eSupports smooth engine idling and acceleration response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 350-35131 oxygen sensor, ensure the vehicle is cool to avoid burns. Use a 22mm wrench to remove the old sensor and install the new one with the M18 x 1.5 threaded mount. Verify the connector type matches the vehicle harness for a secure fit. Avoid damaging the sensor wiring during installation. Proper torque specifications should be followed to prevent leaks or sensor damage.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker OE Replacement oxygen sensors are manufactured to meet or exceed OEM standards, providing reliable performance and durability. This part is a standard replacement grade component designed for long-term use in emission control systems. Warranty details are provided by the manufacturer and typically cover defects in materials and workmanship.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":52119370891445,"sku":"DKHD-350-35131","price":100.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35035131_Fro.jpg?v=1775162322","url":"https:\/\/www.partcatalog.com\/products\/walker-350-35131-oxygen-sensor-upstream","provider":"PartCatalog","version":"1.0","type":"link"}