{"product_id":"ntk-25655-oxygen-sensor-downstream-left","title":"NTK 25655 Oxygen Sensor - Downstream Left","description":"\u003ch2\u003eDirect-Fit Oxygen Sensor\u003c\/h2\u003e\u003cp\u003eNTK Oxygen Sensor 25655 is a specific-fit, heated sensor built for emission control service. It uses a threaded mounting design with a 45-inch harness and 4-wire configuration for direct-fit replacement applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for emission control service\u003c\/li\u003e\n\u003cli\u003eSpecific-fit design for direct replacement applications\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003e45-inch wiring harness and 4-wire layout\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment and Application\u003c\/h2\u003e\u003cp\u003eFits 2004-2006 BMW X5, downstream left. This part cross-references Bosch 15335 for the same application.\u003c\/p\u003e\u003cp\u003eFor BMW X5 oxygen sensor replacement, part number 25655 matches the downstream left location listed in the fitment data. The direct-fit design supports OE-style service on the 2004-2006 BMW X5, and the heated sensor construction helps maintain proper exhaust monitoring response. NTK 25655 is also referenced against common interchange numbers 75-3465 and 234-4472.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light related to oxygen sensor performance\u003c\/li\u003e\n\u003cli\u003eIncorrect air-fuel ratio feedback from a worn sensor\u003c\/li\u003e\n\u003cli\u003eSlow sensor response during exhaust monitoring\u003c\/li\u003e\n\u003cli\u003eFaults tied to downstream oxygen sensor replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Quality\u003c\/h2\u003e\u003cp\u003eUse the threaded mounting point and harness length to match the original routing before installation. Confirm the connector style, wire count, and downstream left position against the removed sensor to ensure proper fit on the BMW X5.\u003c\/p\u003e\u003cp\u003eNTK is a major original equipment oxygen sensor supplier, and its sensors are manufactured and tested to meet or exceed OE specifications for fit, form, and function. Part number 25655 reflects that OE-focused approach for import and domestic applications.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731440722101,"sku":"BFPZ-25655","price":120.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25655_Fro.jpg?v=1794296611","url":"https:\/\/www.partcatalog.com\/products\/ntk-25655-oxygen-sensor-downstream-left","provider":"PartCatalog","version":"1.0","type":"link"}