{"product_id":"ntk-25564-oxygen-sensor","title":"NTK 25564 Oxygen Sensor","description":"\u003ch2\u003eDirect Fit Oxygen Sensor for Mercedes-Benz\u003c\/h2\u003e\u003cp\u003eThe NTK 25564 is a direct fit heated oxygen sensor built for specific Mercedes-Benz applications. It uses a threaded mounting design and a 4-wire configuration with a 24.7500 harness length for OE-style replacement on supported 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\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type\u003c\/li\u003e\n\u003cli\u003e24.7500 wiring harness length\u003c\/li\u003e\n\u003cli\u003e18.000 thread diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK 25564 is part of the Direct Fit Oxygen Sensor line, engineered for specific-fit replacement rather than universal adaptation. As an oxygen sensor for Mercedes-Benz models, it is built to match OE-style fit, form, and function while supporting accurate exhaust feedback in emissions control systems. NTK is known for oxygen sensor manufacturing and uses ceramic technology from raw material through finished product, with manufacturing tests that verify quality and reliability against OE specifications. This part cross-references Bosch (e.g., 13862, 15003) for the same application.\u003c\/p\u003e\u003cp\u003eCompatible Mercedes-Benz coverage includes Fits 1996-1999 Mercedes-Benz S500, Downstream Left; Fits 1996-1999 Mercedes-Benz S420, Downstream Left; Fits 1997-2000 Mercedes-Benz C230, Downstream; and Fits 1998-2000 Mercedes-Benz E320, Upstream Left or Upstream Right. Additional coverage includes Fits 1998-2000 Mercedes-Benz E430, Upstream Left or Upstream Right, plus Fits 1999-2002 Mercedes-Benz SL500, Downstream Left or Downstream Right. The NTK 25564 also fits select Mercedes-Benz E55 AMG, CL500, C280, C36 AMG, and E420 applications listed in the fitment data.\u003c\/p\u003e\u003ch2\u003eCommon Issues This Part May Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFaulty oxygen sensor signal in the exhaust system\u003c\/li\u003e\n\u003cli\u003eCheck engine light related to sensor performance\u003c\/li\u003e\n\u003cli\u003eIncorrect air-fuel feedback to the engine control system\u003c\/li\u003e\n\u003cli\u003eEmissions test failures caused by sensor degradation\u003c\/li\u003e\n\u003cli\u003eSlow sensor response from a worn heated oxygen sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the exact year, model, position, and notes before ordering. This part uses a threaded mounting type and a specific-fit design, so confirm harness length, wire count, and sensor placement against the vehicle application. Follow the vehicle service procedure for removal and installation, and inspect the connector and exhaust threads before installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK manufactures oxygen sensors with OE-specification testing and application coverage developed for import and domestic vehicles. The 25564 is backed by NTK's focus on fit, form, and function for direct replacement use.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53534284513461,"sku":"BFPZ-25564","price":80.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25564_Fro.jpg?v=1792129852","url":"https:\/\/www.partcatalog.com\/products\/ntk-25564-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}