{"product_id":"ntk-25596-oxygen-sensor-downstream-left","title":"NTK 25596 Oxygen Sensor - Downstream Left","description":"\u003ch2\u003eDirect-Fit Oxygen Sensor for Mercedes-Benz\u003c\/h2\u003e\u003cp\u003eThis NTK oxygen sensor is a specific-fit replacement built for downstream left applications on select Mercedes-Benz models. It uses a heated, threaded design with a 4-wire configuration and a 12.75-inch harness for OE-style serviceability.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect Fit Oxygen Sensor line for specific applications\u003c\/li\u003e\n\u003cli\u003eHeated sensor design for faster operating response\u003c\/li\u003e\n\u003cli\u003e4-wire construction with a 12.75-inch wiring harness\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with an 18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eEngineered for OE fit, form, and function\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK 25596 is a direct-fit oxygen sensor developed for downstream left placement on 1998-2000 Mercedes-Benz C280, C43 AMG, CLK320, and CLK430 applications. As part of NTK's Direct Fit Oxygen Sensor line, this unit is built to match the original sensor style and connection layout for straightforward replacement service. NTK 25596 is designed for vehicles that require a heated, threaded oxygen sensor with the specified harness length and wire count.\u003c\/p\u003e\u003cp\u003eNTK is known for oxygen sensor manufacturing and OE application coverage, and this part reflects that focus with manufacturing controls intended to meet or exceed OE specifications. This part cross-references Bosch 15094 and Delphi ES10584 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 proper exhaust gas feedback to the engine control system\u003c\/li\u003e\n\u003cli\u003eAddressing sensor-related fault codes or emissions warnings\u003c\/li\u003e\n\u003cli\u003eCorrecting drivability issues caused by inaccurate oxygen readings\u003c\/li\u003e\n\u003cli\u003eServicing a specific-fit sensor location without universal adaptation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the connector, wire count, thread diameter, and harness length before installation. Confirm the downstream left position and B2S2 application notes for the exact vehicle configuration. Use the vehicle service information to match the original sensor location and routing before tightening the threaded sensor into place.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK tests these oxygen sensors during manufacturing to support reliability and OE-level specification compliance. The brand's OE sensor manufacturing background and direct-fit product strategy support consistent fitment for the listed Mercedes-Benz applications.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731439116469,"sku":"BFPZ-25596","price":87.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25596_Fro.jpg?v=1794296435","url":"https:\/\/www.partcatalog.com\/products\/ntk-25596-oxygen-sensor-downstream-left","provider":"PartCatalog","version":"1.0","type":"link"}