{"product_id":"walker-250-23031-oxygen-sensor","title":"Walker 250-23031 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of Walker 250-23031 Oxygen Sensor for BMW 318i and M3\u003c\/h2\u003e\u003cp\u003eThe Walker 250-23031 oxygen sensor is designed specifically for BMW 318i and M3 models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for accurate emissions monitoring\u003c\/li\u003e\n\u003cli\u003eSpecific fit for BMW 318i and M3 models\u003c\/li\u003e\n\u003cli\u003e26.3-inch wiring harness length with 20 gauge wire\u003c\/li\u003e\n\u003cli\u003eThree-wire configuration with radiused polygon male connector\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eOverall length of 29.84 inches for proper fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Walker Products OE oxygen sensor (part number 250-23031) is engineered with a 26.3-inch wiring harness and 20 gauge wire to ensure reliable electrical connectivity. The sensor type is heated, which allows it to reach operating temperature quickly for faster and more accurate readings. It includes three wires and a radiused polygon male connector designed to match the original equipment specifications for BMW 318i and M3 vehicles. The threaded mounting type with an 18.0 mm thread diameter ensures a secure and proper fit in the exhaust system. The overall length of 29.84 inches accommodates the specific installation requirements of these BMW models.\u003c\/p\u003e\u003ch2\u003eWalker Products OE Brand Line Information\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE line focuses on delivering direct-fit emission control components that meet or exceed original equipment standards. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with factory-installed parts. Using Walker Products OE parts helps maintain the integrity of your BMW 318i or M3’s emission system and supports compliance with environmental regulations.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate oxygen sensing for optimal fuel mixture control\u003c\/li\u003e\n\u003cli\u003eHelps resolve check engine light issues related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves engine performance by providing precise exhaust gas readings\u003c\/li\u003e\n\u003cli\u003eReduces emissions by ensuring proper catalytic converter function\u003c\/li\u003e\n\u003cli\u003ePrevents drivability problems caused by faulty sensor signals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 250-23031 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Verify the connector matches the radiused polygon male shape for a secure electrical connection. Proper routing of the 26.3-inch wiring harness is important to avoid heat damage or interference with moving parts.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products OE oxygen sensors are manufactured to meet strict quality standards and are tested for durability and performance. This part number 250-23031 is backed by Walker’s quality assurance processes to ensure reliable operation in BMW 318i and M3 vehicles. Please refer to Walker’s warranty policy for specific coverage details.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43531449204917,"sku":"DKHD-250-23031","price":81.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25023031_Fro.jpg?v=1774891517","url":"https:\/\/www.partcatalog.com\/products\/walker-250-23031-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}