NTK 24172 Oxygen Sensor

Direct Fit Oxygen Sensor for Acura Applications

The NTK 24172 direct fit oxygen sensor is a heated, threaded replacement built for specific-fit applications that require OE-style sensor response and connector compatibility. It is used across select Acura RL, NSX, TL, and Legend applications, including upstream right, upstream left, upstream rear, and upstream front positions.

Key Features

• Specific-fit oxygen sensor for direct replacement service
• Heated sensor design for faster operating readiness
• 4-wire configuration with a 22.0000 wiring harness length
• 18.000 thread diameter with threaded mounting type
• OE-focused fit, form, and function for emission control service
• NTK part number 24172

Product Details

NTK Direct Fit Oxygen Sensor 24172 is part of the brand’s direct replacement line for import and domestic emission control applications. NTK manufactures oxygen sensors with ceramic-based technology and extensive production testing to help maintain consistent signal performance and reliability to OE specifications. This sensor is a specific-fit, heated unit intended for vehicles that require a threaded, 4-wire oxygen sensor with the listed harness length and mounting style. It is a practical replacement choice for Acura RL, Acura NSX, Acura TL, and Acura Legend applications where accurate exhaust feedback is needed for engine management and emissions monitoring.

This part cross-references Delphi ES20052 and DENSO Auto Parts 234-4065 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings
• Slow sensor warm-up after cold starts
• Emissions test failures tied to sensor output
• Rough idle or drivability issues caused by faulty exhaust feedback

Installation Notes and Tips

Verify the sensor position before ordering, since this application list includes upstream right, upstream left, upstream rear, and upstream front locations. Confirm the connector style, thread diameter, and harness length against the original sensor on the vehicle. For Acura RL, Acura NSX, Acura TL, and Acura Legend fitment, compare the OE part number and sensor placement to ensure the correct bank and sensor location are selected.

Quality Assurance

NTK is a major original equipment oxygen sensor manufacturer, and this direct fit sensor is manufactured and tested to meet or exceed OE specifications for fit and reliability. The 24172 reflects NTK’s OE-focused engineering approach for emission control service.