{"product_id":"walker-250-25028-oxygen-sensor","title":"Walker 250-25028 Oxygen Sensor - Upstream, Upstream Left or Upstream Right","description":"\u003ch2\u003eOverview of Walker 250-25028 Oxygen Sensor for Audi Models\u003c\/h2\u003e\u003cp\u003eThe Walker 250-25028 oxygen sensor is designed specifically for select Audi vehicles, including the A6 Quattro, A8 Quattro, R8, and RS4. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor with 5-wire configuration\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Audi A6 Quattro, A8 Quattro, R8, and RS4\u003c\/li\u003e\n\u003cli\u003e64.49 inches wiring harness length for flexible installation\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for secure connection\u003c\/li\u003e\n\u003cli\u003eWire gauge measurement of 20 for reliable signal transmission\u003c\/li\u003e\n\u003cli\u003eOverall length of 68.03 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 250-25028) features a heated sensor type that allows for faster warm-up times and improved emissions monitoring. The sensor includes a 5-wire design, which supports accurate data transmission to the vehicle’s engine control unit. The wiring harness length of 64.49 inches provides ample reach for installation in the exhaust system of Audi A6 Quattro, A8 Quattro, R8, and RS4 models. The sensor’s threaded mounting type with an 18.0 mm thread diameter ensures a secure and precise fit. Additionally, the radiused polygon male connector is designed to match factory specifications, facilitating a straightforward replacement process.\u003c\/p\u003e\u003ch2\u003eWalker Products OE Brand Line Information\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE line focuses on delivering emission control components that meet or exceed original equipment specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with factory-installed parts. Using a Walker Products OE sensor helps maintain the integrity of the vehicle’s emissions system and supports compliance with environmental regulations.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate oxygen sensing for proper air-fuel mixture control\u003c\/li\u003e\n\u003cli\u003eResolves check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by providing precise exhaust gas data\u003c\/li\u003e\n\u003cli\u003eReduces harmful emissions by ensuring proper catalytic converter function\u003c\/li\u003e\n\u003cli\u003eEliminates rough idling or engine hesitation caused by faulty sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 250-25028 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the connector shape and gender match the factory harness before installation. Thread the sensor carefully to prevent cross-threading and tighten to manufacturer torque specifications. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.\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 250-25028 is backed by Walker’s quality assurance protocols, providing confidence in its reliability and fitment for Audi A6 Quattro, A8 Quattro, R8, and RS4 models.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43533101269173,"sku":"DKHD-250-25028","price":132.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25025028_Fro.jpg?v=1774891776","url":"https:\/\/www.partcatalog.com\/products\/walker-250-25028-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}