{"product_id":"ntk-25526-oxygen-sensor-upstream","title":"NTK 25526 Oxygen Sensor - Upstream","description":"\u003ch2\u003eDirect Fit Oxygen Sensor\u003c\/h2\u003e\u003cp\u003eNTK 25526 is a direct fit oxygen sensor built for specific applications and engineered for OE-style fit, form, and function. It is a heated, threaded sensor with a 38.7500 wiring harness length and 3-wire construction for precise signal delivery.\u003c\/p\u003e\u003cp\u003eCompatible With 1991-1993 Volkswagen Passat, upstream. This NTK oxygen sensor is part of the Direct Fit Oxygen Sensor line, which focuses on application-specific coverage and streamlined replacement selection. Part number 25526 is also cross-referenced to Bosch 13112 for the same application.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for faster operating response.\u003c\/li\u003e\n\u003cli\u003eSpecific-fit design for direct replacement applications.\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type for secure installation.\u003c\/li\u003e\n\u003cli\u003e3-wire configuration for controlled sensor output.\u003c\/li\u003e\n\u003cli\u003e38.7500 wiring harness length for application-specific routing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK 25526 is an emission control oxygen sensor designed for import and domestic coverage, with manufacturing backed by NTK's role as a major OE oxygen sensor supplier. The sensor is produced with ceramic-focused technology and tested during manufacturing to meet or exceed OE specifications for quality and reliability. For Volkswagen Passat oxygen sensor replacement needs, this part number 25526 supports the upstream location specified in the fitment data.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a failed upstream oxygen sensor.\u003c\/li\u003e\n\u003cli\u003eRestoring air\/fuel ratio feedback to the engine control system.\u003c\/li\u003e\n\u003cli\u003eAddressing sensor-related fault codes.\u003c\/li\u003e\n\u003cli\u003eCorrecting drivability issues tied to inaccurate exhaust oxygen readings.\u003c\/li\u003e\n\u003cli\u003eSupporting emissions system performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the upstream location and connector routing before installation. Match the threaded mounting style, wire count, and harness length to the original application. Confirm fitment against the vehicle's exact configuration before ordering.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK tests these oxygen sensors during manufacturing to help ensure quality and reliability that meet or exceed OE specifications.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731437150389,"sku":"BFPZ-25526","price":109.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25526_Fro.jpg?v=1794296195","url":"https:\/\/www.partcatalog.com\/products\/ntk-25526-oxygen-sensor-upstream","provider":"PartCatalog","version":"1.0","type":"link"}