NTK 24170 Oxygen Sensor - Downstream

Direct Fit Oxygen Sensor for Lexus Applications

NTK 24170 is a direct fit heated oxygen sensor built for specific downstream applications. It is engineered with a threaded mounting design and a 4-wire configuration for precise replacement service on select Lexus models.

Key Features

• Direct fit oxygen sensor for specific applications
• Heated sensor design for faster operating response
• 4-wire construction
• Threaded mounting type with 18.000 thread diameter
• 14.57 wiring harness length

Detailed Description

NTK 24170 is part of the Direct Fit Oxygen Sensor line from NTK, a brand within the NGK family of products. The line is focused on application-specific replacement sensors that match OE-style fit, form, and function. This oxygen sensor is built for downstream use on Lexus IS300, RC300, GS300, GS200t, IS200t, and RC200t applications, including 2021-2024 Lexus IS300 and 2021-2024 Lexus RC300 coverage. It also cross-references Monroe Shocks & Struts (e.g., 8946553310) for the same application.

What It Helps Address

• Fault codes related to oxygen sensor performance
• Incorrect air-fuel mixture readings
• Reduced emissions monitoring accuracy
• Slow sensor response from a worn heated sensor
• Replacement needs for a threaded downstream sensor

Installation Notes and Tips

Confirm the downstream position and connector/wire configuration before installation. Match the thread diameter and harness length to the original sensor, and verify the application by year, model, and engine management setup. Use the fitment notes to confirm the correct Lexus IS300, RC300, GS300, GS200t, IS200t, or RC200t application.

Quality Assurance

NTK states that its oxygen sensors are extensively tested during manufacturing and are built to meet or exceed OE specifications. The brand also draws on ceramic manufacturing expertise and OE supply experience to support fit, form, and function.