{"product_id":"walker-250-25044-oxygen-sensor","title":"Walker 250-25044 Oxygen Sensor - Upstream, Upstream Left or Upstream Right","description":"\u003ch2\u003eOverview of Walker Products OE Oxygen Sensor 250-25044\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE Oxygen Sensor 250-25044 is designed specifically for select BMW, Mercedes-Benz, and Mini models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for BMW 550i, 650i, 750i, 750Li, 760Li, M5, M6, X5 models\u003c\/li\u003e\n\u003cli\u003eCompatible with Mercedes-Benz C300, C350e, CLS550, E300, G550, GLC300, GLC350e, ML450, SL450, SL550, SLC43 AMG, SLC300, SLK300, SLK350\u003c\/li\u003e\n\u003cli\u003eFits Mini Cooper models\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003e25.12 inches wiring harness length with 5 wires of 20 gauge\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for secure connection\u003c\/li\u003e\n\u003cli\u003eOverall length of 28.66 inches for proper installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWalker Products OE Brand Line Details\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. The 250-25044 oxygen sensor is engineered to provide reliable emissions control and durability, maintaining the performance standards expected by BMW, Mercedes-Benz, and Mini vehicles. This product line emphasizes precise fitment and compatibility, ensuring seamless integration with the vehicle’s existing systems.\u003c\/p\u003e\u003ch2\u003eProduct Features and Technical Specifications\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emissions accuracy shortly after engine start. The 5-wire design supports both sensor heating and signal transmission, while the 20 gauge wire ensures durability and resistance to electrical interference. The radiused polygon male connector provides a secure and stable connection to the vehicle’s wiring harness. Threaded mounting with an 18.0 mm diameter allows for straightforward installation in the exhaust system.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps resolve rough idling and engine hesitation caused by faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003eReduces increased emissions and failed emissions tests\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by providing accurate air-fuel ratio data\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eSupports proper catalytic converter function by maintaining correct sensor feedback\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the vehicle is cool before beginning installation to avoid burns. Use appropriate tools to remove the old sensor and install the Walker 250-25044 sensor, threading it securely without over-tightening. Verify the connector matches the radiused polygon male design for proper fit. Route the wiring harness carefully to avoid contact with hot exhaust components or moving parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor 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, ensuring reliable performance and durability. The 250-25044 part number undergoes rigorous testing to comply with OEM specifications for BMW, Mercedes-Benz, and Mini vehicles. Please refer to Walker’s official documentation for warranty details applicable to this oxygen sensor.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43533143146677,"sku":"DKHD-250-25044","price":130.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25025044_Fro_6b6f8b52-ab44-4da2-a86f-bde8324bfc12.jpg?v=1774891781","url":"https:\/\/www.partcatalog.com\/products\/walker-250-25044-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}