NTK 21083 Oxygen Sensor - Downstream Left or Downstream Right

Direct Fit Oxygen Sensor for GM Applications

NTK 21083 is a direct fit heated oxygen sensor built for specific applications with threaded mounting and a 4-wire design. It is engineered for accurate exhaust feedback and OE-style replacement performance on select Chevrolet Camaro and Cadillac CTS models.

Key Features

• Direct fit oxygen sensor for specific applications
• Heated sensor design for faster operating response
• 4-wire configuration with threaded mounting
• 14.7500 wiring harness length
• 18.000 thread diameter
• NTK 21083 is part of the Direct Fit Oxygen Sensor line

Detailed Description

NTK 21083 is a specific-fit oxygen sensor from NTK’s Direct Fit Oxygen Sensor line, built to match the original sensor style used in select GM vehicles. The heated design, threaded mount, and OE-focused construction support accurate exhaust monitoring and straightforward replacement where the original sensor has failed or degraded. This part number is used on downstream left and downstream right locations across 2017-2024 Chevrolet Camaro and 2017-2019 Cadillac CTS applications. NTK 21083 is backed by NTK’s OE sensor manufacturing experience and extensive production testing for quality and reliability.

This part cross-references GM 12665162 for the same application.

What It Is Used For

• Replacing a failed downstream oxygen sensor
• Restoring exhaust feedback accuracy
• Addressing check engine light concerns tied to sensor performance
• Correcting drivability issues caused by inaccurate air-fuel data
• Returning the emissions system to proper operation

Installation Notes and Tips

Verify the connector, wire count, thread diameter, and mounting location before installation. This sensor uses a threaded mount and a 4-wire heated configuration, so the replacement should match the original application exactly. Confirm the vehicle position and notes in the fitment data for the correct downstream left or downstream right application on Chevrolet Camaro and Cadillac CTS models.

Quality Assurance

NTK is a major original equipment oxygen sensor supplier and tests these sensors during manufacturing to meet or exceed OE specifications. The 21083 part number reflects NTK’s direct-fit approach for specific applications.