{"product_id":"ntk-25687-oxygen-sensor","title":"NTK 25687 Oxygen Sensor","description":"\u003ch2\u003eDirect Fit Oxygen Sensor for Volkswagen and Audi\u003c\/h2\u003e\u003cp\u003eNTK oxygen sensor 25687 is a direct fit, threaded heated sensor built for specific applications across Volkswagen and Audi models. It is engineered for OE-style fit, form, and function, with a 4-wire design and a 51.25-inch harness for the listed vehicles.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect fit oxygen sensor for specific applications\u003c\/li\u003e\n\u003cli\u003eHeated sensor design for faster operating response\u003c\/li\u003e\n\u003cli\u003e4-wire configuration with threaded mounting\u003c\/li\u003e\n\u003cli\u003e18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eOE-equivalent design for the listed Volkswagen and Audi fitments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003ePart number 25687 is part of NTK’s Direct Fit Oxygen Sensor line, which focuses on application-specific replacement sensors rather than universal coverage. NTK draws on its OE sensor manufacturing background to deliver a replacement that matches the required fitment and electrical configuration for the vehicle applications shown here. This sensor is listed for downstream and intermediate positions on select Volkswagen Passat, Volkswagen CC, Volkswagen Touareg, Audi R8, and other covered models.\u003c\/p\u003e\u003cp\u003eFor buyers searching for a Volkswagen Passat oxygen sensor or Audi R8 downstream oxygen sensor, this part number 25687 provides a direct replacement path for the exact applications in the fitment table. It is also cross-referenced to Bosch 16984 and 16986 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a failed heated 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 tied to sensor signal degradation\u003c\/li\u003e\n\u003cli\u003eReplacing an OE-style sensor with the proper threaded, wired configuration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the exact year, make, model, and sensor position before ordering. This part uses a threaded mounting type and a 4-wire harness, so connector style and routing should be matched to the original sensor on the vehicle. Confirm the listed downstream or intermediate location in the fitment data before installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK states that its oxygen sensors are extensively tested during manufacturing to meet or exceed OE specifications. The brand also emphasizes OE application technology and original equipment sensor manufacturing experience for consistent fit and performance.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731441246389,"sku":"BFPZ-25687","price":130.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25687_Fro.jpg?v=1794296672","url":"https:\/\/www.partcatalog.com\/products\/ntk-25687-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}