{"product_id":"walker-350-34987-oxygen-sensor","title":"Walker 350-34987 Oxygen Sensor - Downstream","description":"\u003ch2\u003eOverview of Walker 350-34987 Oxygen Sensor\u003c\/h2\u003e\u003cp\u003eThe Walker 350-34987 oxygen sensor is designed specifically for select Mazda, Scion, and Toyota models, including the CX-3, iA, MX-5 Miata, and Yaris. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Mazda CX-3, Scion iA, Toyota MX-5 Miata, and Yaris models\u003c\/li\u003e\n\u003cli\u003e12.59-inch wiring harness length with 4 wires\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eRadiused polygon female connector for secure connection\u003c\/li\u003e\n\u003cli\u003e20 gauge wire for reliable signal transmission\u003c\/li\u003e\n\u003cli\u003eOverall length of 15.74 inches for proper installation\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 in vehicles like the Mazda CX-3 and Toyota Yaris.\u003c\/p\u003e\u003ch2\u003eProduct Features and Specifications\u003c\/h2\u003e\u003cp\u003eThe Walker 350-34987 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its 4-wire design supports both sensor heating and signal output, while the 20 gauge wiring ensures consistent electrical performance. The radiused polygon female connector provides a secure and corrosion-resistant connection, and the threaded mounting with an 18.0 mm diameter allows for straightforward installation in the exhaust system.\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 350-34987 oxygen sensor, ensure the vehicle is compatible with this specific part number. The threaded mounting requires proper torque to avoid exhaust leaks. Handle the sensor carefully to prevent damage to the heated element and wiring harness. It is recommended to disconnect the battery before installation and clear any diagnostic trouble codes after replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. The 350-34987 part number undergoes rigorous testing to ensure durability and reliable performance in emission control systems. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43538425675957,"sku":"DKHD-350-34987","price":53.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35034987_Fro.jpg?v=1774892166","url":"https:\/\/www.partcatalog.com\/products\/walker-350-34987-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}