{"product_id":"walker-250-54064-oxygen-sensor","title":"Walker 250-54064 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of Walker 250-54064 Oxygen Sensor for Subaru Vehicles\u003c\/h2\u003e\u003cp\u003eThe Walker 250-54064 oxygen sensor is designed specifically for select Subaru models including the Forester, Impreza, Legacy, and Outback. 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 4-wire design for reliable operation\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Subaru Forester, Impreza, Legacy, and Outback\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eConnector features a radiused polygon shape with male gender\u003c\/li\u003e\n\u003cli\u003eWiring harness length of 8.39 inches and overall length of 11.93 inches\u003c\/li\u003e\n\u003cli\u003eWire gauge measurement of 20 for durability and signal integrity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Walker Products OE oxygen sensor (part number 250-54064) is engineered to meet the exact specifications required by Subaru vehicles. The heated sensor type allows for faster warm-up times, improving emissions control during cold starts. Featuring a 4-wire configuration, it provides accurate oxygen level readings to the engine control unit. The sensor’s threaded mounting type with an 18.0 mm diameter ensures secure installation in the exhaust system. The connector’s radiused polygon shape and male gender design facilitate a precise and secure electrical connection. With a wiring harness length of 8.39 inches and an overall length of 11.93 inches, this sensor fits perfectly in the designated locations on Subaru Forester, Impreza, Legacy, and Outback models.\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 meet or exceed factory standards. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with Subaru’s original components. Using Walker Products OE parts helps maintain vehicle emissions compliance and engine efficiency.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps resolve rough idling caused by incorrect air-fuel mixture readings\u003c\/li\u003e\n\u003cli\u003eReduces engine hesitation and stalling related to faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003ePrevents increased emissions and failed emissions tests\u003c\/li\u003e\n\u003cli\u003eImproves fuel economy by providing accurate exhaust gas data\u003c\/li\u003e\n\u003cli\u003eEliminates check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Walker 250-54064 oxygen sensor requires proper threading into the exhaust manifold or pipe. Ensure the sensor is tightened to manufacturer torque specifications to avoid leaks. The 4-wire connector with a radiused polygon shape must be securely connected to the vehicle’s wiring harness. It is recommended to inspect the wiring harness for damage before installation. Use anti-seize compound on the threads if specified by the vehicle manufacturer to facilitate future removal.\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 250-54064 undergoes rigorous testing to ensure reliable operation in Subaru Forester, Impreza, Legacy, and Outback models. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43533579321525,"sku":"DKHD-250-54064","price":133.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25054064_Fro.jpg?v=1774891825","url":"https:\/\/www.partcatalog.com\/products\/walker-250-54064-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}