{"product_id":"walker-250-25103-oxygen-sensor","title":"Walker 250-25103 Oxygen Sensor - Upstream or Upstream Left","description":"\u003ch2\u003eOverview of Walker 250-25103 Oxygen Sensor for Ford Vehicles\u003c\/h2\u003e\u003cp\u003eThe Walker 250-25103 oxygen sensor is designed specifically for select Ford models including Fusion and Transit series. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor with 5-wire configuration\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Ford Fusion, Transit, Transit-150, Transit-250, Transit-350, and Transit-350 HD\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 electrical connection\u003c\/li\u003e\n\u003cli\u003eWiring harness length of 17.24 inches and overall length of 20.79 inches\u003c\/li\u003e\n\u003cli\u003eWire gauge measurement of 20 for reliable signal transmission\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Walker Products OE oxygen sensor (part number 250-25103) is engineered with a heated sensor element to provide faster response times and improved fuel efficiency. The 5-wire design supports both sensor heating and signal output, ensuring consistent operation under various engine conditions. The radiused polygon male connector offers a precise fit to the vehicle’s wiring harness, reducing the risk of connection issues. With a threaded mounting type and an 18.0 mm thread diameter, installation aligns with factory specifications for the compatible Ford models.\u003c\/p\u003e\u003ch2\u003eWalker Products OE Line Information\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE line focuses on delivering emission control components that meet original equipment standards. This oxygen sensor is part of that line, providing a direct replacement solution that maintains the integrity of the vehicle’s emissions system. Using parts from the Walker Products OE line helps ensure compatibility and performance consistent with factory-installed components.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\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 issues related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves fuel economy by providing precise exhaust gas readings\u003c\/li\u003e\n\u003cli\u003eReduces harmful emissions by maintaining 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 250-25103 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. Verify the connector’s radiused polygon shape and male gender match the vehicle’s harness before installation. Thread the sensor carefully to prevent cross-threading and torque to manufacturer specifications for a secure fit.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports long-term vehicle reliability.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43533304332469,"sku":"DKHD-250-25103","price":102.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25025103_Fro.jpg?v=1774891796","url":"https:\/\/www.partcatalog.com\/products\/walker-250-25103-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}