NTK 24584 Oxygen Sensor - Downstream or Downstream Rear

Direct-fit oxygen sensor

NTK Oxygen Sensor 24584 is a specific-fit, heated oxygen sensor built for downstream applications. It uses a threaded mounting design with a 19-inch harness and 4-wire configuration for direct replacement service on select Acura and Honda models.

Key features

• Heated oxygen sensor for faster operating response.
• Specific-fit design for direct replacement service.
• Threaded mounting with 18 mm thread diameter.
• 19-inch wiring harness and 4-wire construction.
• OE-equivalent design for downstream emissions control applications.

Detailed description

NTK part number 24584 is a direct fit oxygen sensor for downstream use on select Acura NSX, CL, TL, and Honda Accord applications. Fitment includes 1998-2005 vehicles with downstream and downstream rear positions, including California emissions and ULEV notes where listed. This sensor is engineered to match original equipment form and function, making it a practical replacement when the original sensor has aged, responded slowly, or triggered emissions-related faults. NTK 24584 is also cross-referenced to Bosch 13071 and DENSO Auto Parts 234-4621 for the same application.

NTK’s Direct Fit Oxygen Sensor line focuses on application-specific coverage and OE-style replacement geometry. As part of the NGK family, NTK applies ceramic manufacturing expertise and extensive production testing to support consistent quality and reliability. The NTK 24584 follows that approach with a heated, threaded design intended for straightforward service on compatible import applications.

What it is used for

• Replacing a slow or failed downstream oxygen sensor.
• Addressing check engine lights tied to oxygen sensor performance.
• Restoring proper exhaust feedback for emissions monitoring.
• Correcting drivability issues related to inaccurate sensor readings.
• Servicing California emissions and ULEV-listed applications where specified.

Installation notes and tips

Confirm the downstream position and match the vehicle notes before ordering. Verify the 18 mm thread diameter, 4-wire layout, and 19-inch harness length against the original sensor. Use the fitment notes for California emissions and ULEV applications on Honda Accord and Acura TL models to ensure correct application selection.

Quality assurance

NTK tests oxygen sensors during manufacturing to support quality and reliability that meet or exceed OE specifications. The brand is recognized as a major original equipment oxygen sensor supplier, and this part number 24584 is built to OE-equivalent standards for application-specific service.