{"product_id":"front-oxygen-sensor-bank-1","title":"Front Oxygen Sensor Bank 1","description":"The BMW 11787558055 is a 1400mm length upstream oxygen sensor for bank 1 (cylinders 1-3) located before the catalytic converter. This critical component measures the oxygen content in the exhaust gases, providing vital data to your BMW's Engine Control Unit (ECU) for precise air-fuel ratio adjustments. Proper functioning of this sensor is essential for optimizing engine performance, ensuring fuel efficiency, and minimizing harmful tailpipe emissions.\n\nSymptoms of a failing oxygen sensor include reduced fuel mileage, failed emissions tests, illuminated Check Engine Light, and poor overall driveability. Replacing a worn-out sensor with this Genuine BMW part helps restore optimal engine function and prevent these issues.\n\nThis upstream oxygen sensor is specifically designed for various BMW models, including the E60, E82, E88, E90, E91, E92, E93, and Z4 series, primarily with N52 3.0L or N54 3.0L engines. It is important to verify fitment for your specific vehicle's year, model, submodel, and engine to ensure compatibility.","brand":"BMW \/","offers":[{"title":"Default Title","offer_id":52687212773688,"sku":"11787558055","price":126.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660188542.jpg?v=1784881446","url":"https:\/\/store.motormia.co\/products\/front-oxygen-sensor-bank-1","provider":"MOTORMIA","version":"1.0","type":"link"}