{"product_id":"walker-250-25088-oxygen-sensor","title":"Walker 250-25088 Oxygen Sensor - Downstream or Upstream","description":"\u003ch2\u003eOverview of Walker 250-25088 Oxygen Sensor for Mercedes-Benz\u003c\/h2\u003e\u003cp\u003eThe Walker 250-25088 oxygen sensor is designed specifically for select Mercedes-Benz models, including GL350, GLS350d, ML350, R350, and Sprinter series vehicles. This heated oxygen sensor ensures accurate emission 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 Mercedes-Benz GL350, GLS350d, ML350, R350, and Sprinter 1500\/2500\/3500\/3500XD\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 wiring harness connection\u003c\/li\u003e\n\u003cli\u003eWiring harness length of 10.55 inches and overall length of 14.09 inches\u003c\/li\u003e\n\u003cli\u003eWire gauge measurement of 20 for reliable electrical performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWalker Products OE Line and Part Details\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality components tailored to specific vehicle applications. The 250-25088 sensor meets precise OEM specifications, ensuring compatibility and performance for Mercedes-Benz emission systems. The OE line emphasizes exact fitment and durability, making it suitable for maintaining factory-level emission control standards.\u003c\/p\u003e\u003ch2\u003eTechnical Description and Features\u003c\/h2\u003e\u003cp\u003eThe Walker 250-25088 oxygen sensor features a heated sensor element that allows for quicker activation and more accurate readings under various operating conditions. Its 5-wire design supports both sensor heating and signal transmission, improving responsiveness and reliability. The sensor’s radiused polygon male connector ensures a secure and precise connection to the vehicle’s wiring harness, reducing the risk of electrical faults. With a threaded mounting type and an 18.0 mm thread diameter, installation aligns with factory specifications for a secure fit. The wiring harness length of 10.55 inches and overall length of 14.09 inches provide adequate reach and positioning within the exhaust system.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate air-fuel ratio readings for Mercedes-Benz GL350 and GLS350d models\u003c\/li\u003e\n\u003cli\u003eResolves check engine light issues related to oxygen sensor faults in ML350 and R350 vehicles\u003c\/li\u003e\n\u003cli\u003eImproves emission control performance in Sprinter 1500, 2500, 3500, and 3500XD vans\u003c\/li\u003e\n\u003cli\u003eAddresses rough idling or poor fuel economy caused by faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003eSupports compliance with emission regulations by maintaining sensor accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 250-25088 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Confirm the connector’s radiused polygon shape and male gender match the vehicle’s wiring harness for proper connection. Tighten the sensor to the manufacturer’s torque specifications to prevent exhaust leaks. It is recommended to inspect wiring and connectors for damage before installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products OE oxygen sensors are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 250-25088 part number undergoes rigorous quality control to ensure consistent operation within Mercedes-Benz emission systems. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship, supporting long-term vehicle emission compliance.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43533271630005,"sku":"DKHD-250-25088","price":104.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25025088_Fro.jpg?v=1774891793","url":"https:\/\/www.partcatalog.com\/products\/walker-250-25088-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}