{"product_id":"ntk-21085-oxygen-sensor-downstream-left-or-downstream-right","title":"NTK 21085 Oxygen Sensor - Downstream Left or Downstream Right","description":"\u003ch2\u003eDirect Fit Oxygen Sensor for Corvette\u003c\/h2\u003e\u003cp\u003eNTK Direct Fit Oxygen Sensor 21085 is a specific-fit, heated oxygen sensor built for direct replacement service. It is engineered with a threaded mounting design and a 4-wire configuration for precise signal control and OE-style installation.\u003c\/p\u003e\u003cp\u003eFits 2017-2019 Chevrolet Corvette, downstream right and downstream left. This NTK oxygen sensor is part of the Direct Fit Oxygen Sensor line, which focuses on streamlined coverage and application-specific replacement parts.\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 service.\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type for secure installation.\u003c\/li\u003e\n\u003cli\u003e4-wire configuration for controlled sensor output.\u003c\/li\u003e\n\u003cli\u003e18 mm thread diameter and 10.25 in. harness length.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK part number 21085 is an emission control oxygen sensor for the Chevrolet Corvette. It is built as a direct fit replacement with a heated sensing element, threaded mounting, and application-specific wiring to match the original configuration. NTK uses ceramic technology and OE-focused manufacturing processes to produce oxygen sensors with fit, form, and function aligned to original equipment requirements. This part cross-references 12665161 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a failed oxygen sensor that triggers emissions-related fault codes.\u003c\/li\u003e\n\u003cli\u003eRestoring proper air-fuel feedback to the engine control system.\u003c\/li\u003e\n\u003cli\u003eAddressing drivability issues tied to inaccurate exhaust oxygen readings.\u003c\/li\u003e\n\u003cli\u003eCorrecting sensor response problems caused by age, heat, or contamination.\u003c\/li\u003e\n\u003cli\u003eSupporting emissions system operation on the Corvette.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the downstream left or downstream right location before installation. Confirm connector routing, thread size, and harness length match the original sensor position. Use the vehicle’s service information for torque and wiring procedures, and inspect the exhaust bung threads before installing the sensor.\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. Part number 21085 reflects NTK’s OE application focus and manufacturing control from raw material to finished sensor.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731382558901,"sku":"BFPZ-21085","price":44.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_21085_Fro.jpg?v=1794294383","url":"https:\/\/www.partcatalog.com\/products\/ntk-21085-oxygen-sensor-downstream-left-or-downstream-right","provider":"PartCatalog","version":"1.0","type":"link"}