{"product_id":"walker-250-25039-oxygen-sensor","title":"Walker 250-25039 Oxygen Sensor - Upstream Left or Upstream Right","description":"\u003ch2\u003eOverview of Walker 250-25039 Oxygen Sensor\u003c\/h2\u003e\u003cp\u003eThe Walker 250-25039 oxygen sensor is designed specifically for select Audi and Porsche models, including the Audi A8 Quattro and Porsche 911. This heated oxygen sensor ensures accurate emissions control 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 Audi A8 Quattro and Porsche 911\u003c\/li\u003e\n\u003cli\u003e26.1-inch wiring harness length for flexible installation\u003c\/li\u003e\n\u003cli\u003e20 gauge wire measurement with 5 wires for reliable signal transmission\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for secure connection\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eOverall length of 29.65 inches for proper fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor from Walker Products OE is engineered to meet the exact specifications required by Audi and Porsche vehicles. The heated sensor design allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 5-wire configuration and 20 gauge wiring ensure consistent and accurate sensor signals. The radiused polygon male connector provides a secure and precise fit, minimizing the risk of connection issues. With a threaded mounting type and an 18.0 mm thread diameter, installation aligns with factory standards. The wiring harness length of 26.1 inches and overall length of 29.65 inches offer sufficient reach for proper placement within the exhaust system.\u003c\/p\u003e\u003ch2\u003eWalker Products OE Brand Line Information\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE line focuses on delivering original equipment quality parts that match or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance for specific vehicle applications such as the Audi A8 Quattro and Porsche 911. The OE line emphasizes precise fitment and reliable operation, supporting emission control systems effectively.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\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\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 faults\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 250-25039 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. Verify the radiused polygon male connector aligns correctly with the vehicle harness to avoid damage. The 26.1-inch wiring harness length provides flexibility, but avoid sharp bends or pinching during installation. Follow vehicle-specific torque specifications for sensor mounting.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products OE oxygen sensors are manufactured to meet stringent quality standards for durability and performance. This part number 250-25039 undergoes rigorous testing to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the original product documentation or supplier.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43533130662069,"sku":"DKHD-250-25039","price":125.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25025039_Fro.jpg?v=1774891780","url":"https:\/\/www.partcatalog.com\/products\/walker-250-25039-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}