{"product_id":"walker-250-54039-oxygen-sensor","title":"Walker 250-54039 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of Walker 250-54039 Oxygen Sensor for Mazda 6\u003c\/h2\u003e\u003cp\u003eThe Walker 250-54039 oxygen sensor is designed specifically for Mazda 6 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 with 4 wires for accurate readings\u003c\/li\u003e\n\u003cli\u003eSpecific fitment for Mazda 6 ensuring compatibility\u003c\/li\u003e\n\u003cli\u003e22.17-inch wiring harness length for flexible installation\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for reliable connection\u003c\/li\u003e\n\u003cli\u003eWire gauge measurement of 20 for durability and signal integrity\u003c\/li\u003e\n\u003cli\u003eOverall length of 25.71 inches for proper placement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Walker 250-54039 oxygen sensor is engineered to meet the exact specifications required by Mazda 6 vehicles. As a heated sensor, it quickly reaches operating temperature to provide accurate oxygen level readings, which are critical for optimal fuel mixture and emissions control. The sensor includes a 22.17-inch wiring harness and four wires with a 20-gauge measurement, ensuring reliable electrical performance. Its radiused polygon male connector and threaded mounting type with an 18.0 mm thread diameter allow for a secure and precise fit. The overall length of 25.71 inches accommodates proper sensor placement within the exhaust system.\u003c\/p\u003e\u003ch2\u003eWalker Products OE Brand Line\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality parts designed to meet or exceed factory specifications. The Walker Products OE line ensures that each sensor, including the 250-54039, provides consistent performance and durability tailored to specific vehicle applications like the Mazda 6.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaintains proper air-fuel ratio for efficient engine operation\u003c\/li\u003e\n\u003cli\u003eHelps reduce harmful emissions by monitoring exhaust gases\u003c\/li\u003e\n\u003cli\u003ePrevents engine performance issues related to faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003eSupports smooth idling and acceleration by providing accurate sensor data\u003c\/li\u003e\n\u003cli\u003eAssists in avoiding check engine light triggers related to emission control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 250-54039 oxygen sensor on a Mazda 6, ensure the threaded mounting is properly tightened to the manufacturer’s torque specifications to avoid exhaust leaks. The radiused polygon male connector should be securely connected to the vehicle’s wiring harness to maintain signal integrity. It is recommended to inspect the wiring harness for any damage before installation and to use anti-seize compound on the threads if specified by the vehicle manufacturer.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and longevity. The 250-54039 part number undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43533525450933,"sku":"DKHD-250-54039","price":140.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25054039_Fro.jpg?v=1774891818","url":"https:\/\/www.partcatalog.com\/products\/walker-250-54039-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}