NTK 24797 Oxygen Sensor - Downstream Rear

Direct Fit Oxygen Sensor

NTK Direct Fit Oxygen Sensor 24797 is a specific-fit heated oxygen sensor built for emission control applications. It uses a threaded mounting design and a 4-wire configuration with an 18.7500 wiring harness length for a direct replacement style installation.

Key Features

• Heated oxygen sensor for precise exhaust monitoring.
• Specific-fit design for direct replacement applications.
• Threaded mounting type with 18.000 thread diameter.
• 4-wire construction with 18.7500 wiring harness length.
• NTK 24797 is engineered for fit, form, and function.

Detailed Description

NTK 24797 is part of the Direct Fit Oxygen Sensor line, built to streamline replacement selection while maintaining OE-style application coverage. As an oxygen sensor from NTK, the Sensor Specialist, it reflects the brand’s focus on ceramic-based sensor technology and manufacturing control from raw material through finished product. This part cross-references 8946508160 for the same application. Fits 2017-2020 Toyota Sienna, downstream rear. For Toyota Sienna owners needing a downstream rear oxygen sensor, NTK 24797 provides a direct-fit solution with the correct heated, threaded configuration.

What It Helps Address

• Check engine light related to oxygen sensor performance.
• Incorrect exhaust oxygen readings affecting fuel control.
• Slow sensor response from a worn heated sensor.
• Replacement needs for a specific-fit downstream rear sensor.

Installation Notes

Confirm the connector, thread diameter, wire count, and harness length before installation. Match the downstream rear position and verify the vehicle application against the original sensor. Use proper removal tools on the threaded sensor body to avoid damage during service.

Quality Assurance

NTK states that its oxygen sensors are extensively tested during manufacturing to meet or exceed OE specifications. The brand is part of the NGK family of products and supplies original equipment oxygen sensors globally.