{"product_id":"ntk-25587-oxygen-sensor-downstream-downstream-left-or-downstream-right","title":"NTK 25587 Oxygen Sensor - Downstream, Downstream Left or Downstream Right","description":"\u003ch2\u003eDirect-Fit Downstream Oxygen Sensor\u003c\/h2\u003e\u003cp\u003eNTK 25587 is a direct-fit heated oxygen sensor built for specific BMW and Land Rover applications. It uses a threaded mounting design and a 4-wire configuration to match OE-style replacement requirements for downstream monitoring.\u003c\/p\u003e\u003cp\u003eAs part of NTK's Direct Fit Oxygen Sensor line, this sensor is engineered for streamlined coverage and OE application technology. NTK 25587 is a fitment-based replacement for BMW X3, BMW X5, and BMW 3 Series applications, with downstream coverage that matches the listed vehicle configurations.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect-fit oxygen sensor for specific downstream applications\u003c\/li\u003e\n\u003cli\u003eHeated sensor design for faster operating response\u003c\/li\u003e\n\u003cli\u003e4-wire configuration for OE-style electrical connection\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003e39-inch wiring harness length for listed applications\u003c\/li\u003e\n\u003cli\u003eExtensively tested during manufacturing for quality and reliability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK 25587 is a specific-fit downstream oxygen sensor for a wide range of BMW and Land Rover applications, including BMW X3, BMW X5, BMW 320i, BMW 325i, BMW 330i, BMW Z3, and related models. The direct-fit design supports OE-equivalent replacement needs, while the heated sensor construction and threaded mount help maintain proper exhaust feedback performance in the original sensor location. This part cross-references Bosch 15109 and DENSO Auto Parts 234-4683 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a failed downstream oxygen sensor\u003c\/li\u003e\n\u003cli\u003eRestoring accurate exhaust gas feedback to the engine control system\u003c\/li\u003e\n\u003cli\u003eAddressing check engine light concerns related to oxygen sensor performance\u003c\/li\u003e\n\u003cli\u003eCorrecting drivability issues caused by degraded sensor response\u003c\/li\u003e\n\u003cli\u003eMaintaining OE-style emissions monitoring on listed BMW and Land Rover applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the exact year, model, and downstream position before installation. This sensor is specific-fit and should be matched to the listed cylinder-bank and sensor-location notes, including B1S2 and B2S2 applications where specified. Confirm thread size, harness length, and connector routing against the original part before replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK is part of the NGK family of products and is recognized as a major original equipment oxygen sensor manufacturer. NTK states that these sensors are extensively tested during manufacturing to meet or exceed OE specifications.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731438985397,"sku":"BFPZ-25587","price":88.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25587_Fro.jpg?v=1794296419","url":"https:\/\/www.partcatalog.com\/products\/ntk-25587-oxygen-sensor-downstream-downstream-left-or-downstream-right","provider":"PartCatalog","version":"1.0","type":"link"}