{"product_id":"ntk-25611-oxygen-sensor-downstream-right","title":"NTK 25611 Oxygen Sensor - Downstream Right","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eNTK 25611 is a direct-fit heated oxygen sensor built for specific Mercedes-Benz applications. It uses a threaded mounting design, a 4-wire configuration, and a 23.25-inch harness for a precise replacement setup.\u003c\/p\u003e\u003cp\u003eCompatible with Mercedes-Benz CLK320, CLK430, and CLK55 AMG downstream right applications, this NTK oxygen sensor is engineered for OE-style fit, form, and function. Part number 25611 is backed by NTK’s focus on sensor technology and application coverage.\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\u003e23.25-inch wiring harness length\u003c\/li\u003e\n\u003cli\u003e18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eNTK 25611 replacement sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK 25611 is part of the Direct Fit Oxygen Sensor line, created for straightforward replacement in applications that require the correct connector, harness length, and threaded installation style. The heated design supports accurate exhaust monitoring once the sensor reaches operating temperature, while the specific-fit construction helps maintain original equipment-style integration. NTK 25611 is a practical choice for Mercedes-Benz CLK320, CLK430, and CLK55 AMG downstream right service needs where OE-equivalent fitment matters.\u003c\/p\u003e\u003cp\u003eNTK is known for oxygen sensor manufacturing and uses ceramic-based sensor technology developed from raw material through finished product. The brand’s manufacturing process includes testing intended to verify quality and reliability against OE specifications. If you are replacing a worn sensor on a Mercedes-Benz CLK320 or CLK430, part number 25611 provides a direct-fit solution with the correct mounting and wiring layout.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Solve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light caused by a failing oxygen sensor\u003c\/li\u003e\n\u003cli\u003eIncorrect air-fuel ratio readings\u003c\/li\u003e\n\u003cli\u003eSlow sensor response after warm-up\u003c\/li\u003e\n\u003cli\u003eExhaust emissions monitoring faults\u003c\/li\u003e\n\u003cli\u003eConnector or harness mismatch during replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eFits 2003 Mercedes-Benz CLK320, downstream right. Fits 2001-2003 Mercedes-Benz CLK430, downstream right. Fits 2001-2002 Mercedes-Benz CLK320, downstream right. Fits 2001-2002 Mercedes-Benz CLK55 AMG, downstream right.\u003c\/p\u003e\u003cp\u003eConfirm the downstream right location, thread diameter, wire count, and harness length before installation. Use the vehicle’s original sensor routing and connector layout to verify proper replacement. Part number 25611 should be matched to the listed fitment only.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK states that these oxygen sensors are extensively tested during manufacturing to meet or exceed OE specifications. The brand also positions itself as a major OE oxygen sensor supplier, which supports confidence in application accuracy and product consistency.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731439313077,"sku":"BFPZ-25611","price":110.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25611_Fro.jpg?v=1794296458","url":"https:\/\/www.partcatalog.com\/products\/ntk-25611-oxygen-sensor-downstream-right","provider":"PartCatalog","version":"1.0","type":"link"}