{"product_id":"walker-250-25004-oxygen-sensor","title":"Walker 250-25004 Oxygen Sensor - Upstream or Upstream Right","description":"\u003ch2\u003eOverview of Walker Products OE Oxygen Sensor 250-25004\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE Oxygen Sensor 250-25004 is designed for precise emission control in select Audi, BMW, Porsche, and Volkswagen vehicles. This heated oxygen sensor ensures accurate air-fuel mixture readings to maintain optimal engine performance and emissions compliance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor with 5-wire configuration\u003c\/li\u003e\n\u003cli\u003eSpecific fit for models including Audi A8 Quattro, BMW 325Ci, Porsche Cayenne, and Volkswagen Golf\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003e54.65 inches wiring harness length with radiused polygon male connector\u003c\/li\u003e\n\u003cli\u003eWire gauge measurement of 20 for reliable electrical conductivity\u003c\/li\u003e\n\u003cli\u003eOverall length of 58.19 inches for proper installation depth\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Walker Products OE oxygen sensor (part number 250-25004) features a heated sensor element that allows for faster warm-up times and improved sensor response. The 5-wire design supports accurate signal transmission and heater control, essential for maintaining the correct air-fuel ratio in engines. The sensor’s threaded mounting type with an 18.0 mm diameter ensures a secure and precise fit in the exhaust system. The wiring harness length of 54.65 inches and the radiused polygon male connector provide compatibility and ease of installation in specific vehicle models.\u003c\/p\u003e\u003cp\u003eWalker Products OE is a product line focused on delivering original equipment quality parts that meet or exceed OEM specifications. This oxygen sensor is engineered to match the exact fit and function required by the vehicle manufacturers, making it suitable for emission control systems in Audi, BMW, Porsche, and Volkswagen vehicles.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBMW 325Ci, 325i, 545i, 645Ci\u003c\/li\u003e\n\u003cli\u003eAudi A8 Quattro\u003c\/li\u003e\n\u003cli\u003ePorsche Cayenne\u003c\/li\u003e\n\u003cli\u003eVolkswagen Beetle, Golf, Jetta, Passat, TT Quattro\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis oxygen sensor is designed specifically for these models to ensure proper engine management and emission control.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Oxygen Sensor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIncorrect air-fuel mixture readings causing poor fuel economy\u003c\/li\u003e\n\u003cli\u003eCheck engine light triggered by faulty oxygen sensor signals\u003c\/li\u003e\n\u003cli\u003eIncreased emissions due to sensor malfunction\u003c\/li\u003e\n\u003cli\u003eEngine performance issues such as rough idling or hesitation\u003c\/li\u003e\n\u003cli\u003eFailed emissions tests related to sensor failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker Products OE oxygen sensor 250-25004, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Verify the connector shape and wiring harness length match the vehicle’s original sensor to avoid electrical connection issues. Proper torque specifications should be followed to avoid damage to the sensor or exhaust components.\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 OEM specifications. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. This ensures reliable performance and durability for emission control applications in compatible Audi, BMW, Porsche, and Volkswagen vehicles.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43533046284469,"sku":"DKHD-250-25004","price":103.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25025004_Fro_2390ab86-89b5-4135-b98f-20f699fe394a.jpg?v=1774891770","url":"https:\/\/www.partcatalog.com\/products\/walker-250-25004-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}