{"product_id":"ntk-25545-oxygen-sensor-downstream-or-upstream","title":"NTK 25545 Oxygen Sensor - Downstream or Upstream","description":"\u003ch2\u003eDirect-fit oxygen sensor for Mercedes-Benz E320\u003c\/h2\u003e\u003cp\u003eNTK Direct Fit Oxygen Sensor 25545 is a specific-fit heated oxygen sensor built for 1996 Mercedes-Benz E320 applications. It uses a threaded mounting design and a 4-wire configuration to match the original sensor layout for upstream and downstream positions.\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 use.\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18 mm thread diameter.\u003c\/li\u003e\n\u003cli\u003e24.5-inch wiring harness length for proper routing.\u003c\/li\u003e\n\u003cli\u003e4-wire sensor configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed description\u003c\/h2\u003e\u003cp\u003eNTK 25545 is part of the Direct Fit Oxygen Sensor line, which focuses on application-specific replacement sensors with OE-style fit, form, and function. For the Mercedes-Benz E320, this sensor is listed for both upstream and downstream locations in 1996 models, including Bank 1 Sensor 1 air\/fuel ratio service and downstream exhaust monitoring. NTK applies its oxygen-sensor manufacturing expertise and ceramic technology to deliver a replacement that aligns with original equipment requirements. This part cross-references Bosch 13597 and 13599 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat it is used for\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn or slow-responding oxygen sensor.\u003c\/li\u003e\n\u003cli\u003eRestoring accurate exhaust oxygen feedback to the engine control system.\u003c\/li\u003e\n\u003cli\u003eAddressing check engine light concerns related to sensor performance.\u003c\/li\u003e\n\u003cli\u003eCorrecting fuel trim issues caused by inaccurate air\/fuel ratio readings.\u003c\/li\u003e\n\u003cli\u003eReplacing a damaged threaded sensor or harness connection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation notes and tips\u003c\/h2\u003e\u003cp\u003eVerify the sensor position, connector style, thread diameter, and harness length before installation. This NTK oxygen sensor is a direct-fit, threaded replacement for the listed Mercedes-Benz E320 applications, so matching the original mounting location and wiring layout is important for proper installation.\u003c\/p\u003e\u003ch2\u003eQuality assurance\u003c\/h2\u003e\u003cp\u003eNTK states that its oxygen sensors are extensively tested during manufacturing and are built to meet or exceed OE specifications. The brand is part of NGK and is recognized as a major original equipment oxygen sensor supplier.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731437772981,"sku":"BFPZ-25545","price":103.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25545_Fro.jpg?v=1794296272","url":"https:\/\/www.partcatalog.com\/products\/ntk-25545-oxygen-sensor-downstream-or-upstream","provider":"PartCatalog","version":"1.0","type":"link"}