{"product_id":"walker-350-31003-oxygen-sensor","title":"Walker 350-31003 Oxygen Sensor - Upstream","description":"\u003ch2\u003eReliable Oxygen Sensor for Ford, Kia, Mazda, and Mercury Vehicles\u003c\/h2\u003e\u003cp\u003eThe Walker 350-31003 oxygen sensor is designed to provide accurate emissions monitoring for specific vehicle models including Ford Escort, Kia Sephia, Mazda MX-3, and Mercury Tracer. This non-heated sensor ensures precise air-fuel mixture readings to help maintain optimal engine performance and emissions control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWiring harness length: 16.46 inches for flexible installation\u003c\/li\u003e\n\u003cli\u003eWire gauge measurement: 20 gauge for reliable signal transmission\u003c\/li\u003e\n\u003cli\u003eNon-heated sensor type for specific engine applications\u003c\/li\u003e\n\u003cli\u003eSingle wire quantity simplifies connection\u003c\/li\u003e\n\u003cli\u003eRadiused polygon female connector for secure fit\u003c\/li\u003e\n\u003cli\u003eThread diameter of 18.0 mm with threaded mounting type\u003c\/li\u003e\n\u003cli\u003eOverall length of 20.0 inches for proper reach\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWalker Products Aftermarket Line Overview\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing quality emission control components tailored to specific vehicle applications. The 350-31003 sensor is engineered to meet OEM specifications for fit and function, ensuring compatibility with select Ford, Kia, Mazda, and Mercury models. Walker Products Aftermarket parts are designed to support emission system integrity and regulatory compliance.\u003c\/p\u003e\u003ch2\u003eProduct Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Walker 350-31003 oxygen sensor is a non-heated, threaded sensor with a radiused polygon female connector, designed for specific fitment rather than universal use. It is compatible with Ford Escort and Tracer, Kia Sephia and Festiva, Mazda MX-3 and Protege, and Mercury Tracer models. The sensor’s 16.46-inch wiring harness and 20-inch overall length provide adequate reach for installation in these vehicles. The 20 gauge wire ensures consistent signal quality for accurate oxygen level detection.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps maintain proper air-fuel ratio for efficient combustion\u003c\/li\u003e\n\u003cli\u003eReduces harmful emissions by providing accurate sensor data\u003c\/li\u003e\n\u003cli\u003ePrevents engine performance issues related to faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003eSupports emission system diagnostics and compliance\u003c\/li\u003e\n\u003cli\u003eAddresses check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation requires removal of the old oxygen sensor and threading the Walker 350-31003 sensor into the exhaust manifold or pipe. Ensure the connector matches the vehicle’s wiring harness with its radiused polygon female design. Use appropriate tools to avoid damaging the 18.0 mm threaded mounting. Verify wiring harness length and routing to prevent strain or interference with other components.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products Aftermarket oxygen sensors are manufactured to meet industry standards for durability and performance. While specific warranty details for part number 350-31003 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to support long-term reliability.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43537856692405,"sku":"DKHD-350-31003","price":38.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35031003_Fro.jpg?v=1774891894","url":"https:\/\/www.partcatalog.com\/products\/walker-350-31003-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}