NTK 24573 Oxygen Sensor - Downstream Front, Downstream Left or Downstream Right

Direct Fit Oxygen Sensor for Nissan and Infiniti

NTK Oxygen Sensor 24573 is a direct fit heated oxygen sensor built for specific downstream applications on select Nissan and INFINITI vehicles. It is engineered for OE-style fit, form, and function, with a threaded mounting design and a 4-wire configuration for straightforward replacement.

As part of the NTK Direct Fit Oxygen Sensor line, this sensor is designed for import and domestic coverage with application-specific construction. NTK uses ceramic manufacturing expertise and extensive production testing to help deliver consistent signal performance and reliable operation in emissions control systems.

Key Features

• Direct fit oxygen sensor for specific downstream applications
• Heated sensor design for faster operating temperature
• 4-wire configuration
• 35.5 in. wiring harness length
• 18 mm thread diameter with threaded mounting type
• OE-style fit, form, and function for select Nissan and INFINITI models

Detailed Product Overview

NTK part number 24573 is built for downstream oxygen sensor replacement on select 2001-2004 INFINITI and Nissan vehicles. It is a specific-fit sensor intended to match original equipment placement and connector-style requirements where listed. This part cross-references Bosch 13650 and Delphi ES20363 for the same application.

Compatible vehicle coverage includes Fits 2004 INFINITI I35, Downstream Left; Fits 2002-2003 INFINITI QX4, Downstream Right; Fits 2002-2003 Nissan Maxima, Downstream Front; Fits 2002 Nissan Pathfinder, Downstream Right; Fits 2002 Nissan Sentra, Downstream Right; Fits 2001 INFINITI QX4, Downstream Right; Fits 2001 Nissan Pathfinder, Downstream Right; and Fits 2001 Nissan Sentra, Downstream Right.

Common Issues This Part May Address

• Check engine light related to oxygen sensor performance
• Faulty downstream air-fuel ratio feedback
• Reduced emissions system efficiency
• Incorrect sensor response from a worn heated oxygen sensor
• Replacement need after sensor contamination or age-related failure

Installation Notes and Tips

Verify the exact position, connector style, and model-year break before ordering. This sensor is specific fit and should be matched to the listed downstream location, including B1S2 and B2S2 applications where noted. Use the 18 mm threaded mounting specification and 35.5 in. harness length to confirm routing and installation clearance on the vehicle.

Quality Assurance

NTK is a major original equipment oxygen sensor supplier, and this Direct Fit Oxygen Sensor line is manufactured and tested to meet or exceed OE specifications for fit and reliability.