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NTK 24665 Air / Fuel Ratio Sensor - Upstream
Overview of NTK Direct Fit 4-Wire A/F Sensor 24665
The NTK Direct Fit 4-Wire A/F Sensor 24665 is designed specifically for select Acura and Honda models, including the Civic, CR-V, and RSX. This heated air/fuel ratio sensor ensures precise monitoring of the air-fuel mixture to support optimal engine performance and emissions control.
- Heated sensor type for faster response times
- Specific fit for Acura and Honda Civic, CR-V, RSX models
- 4-wire configuration for accurate signal transmission
- Thread diameter of 18.000 mm and thread length of 0.38 inches
- Wiring harness length of 13.8 inches for direct installation
- No mounting bracket included
About the Direct Fit 4-Wire A/F Sensor Product Line
The Direct Fit 4-Wire A/F Sensor line by NTK is engineered to provide a precise replacement solution for vehicles requiring a heated air/fuel ratio sensor with a 4-wire setup. This product line focuses on exact fitment and reliable sensor performance, minimizing installation complexity and ensuring compatibility with specific vehicle models such as Acura and Honda. The 24665 part number is part of this line, offering a direct replacement that matches OEM specifications.
Detailed Product Description
This NTK air/fuel ratio sensor features a heated sensor element that allows it to reach operating temperature quickly, improving the accuracy of air-fuel mixture readings. The 4-wire design supports both the sensor signal and heater circuit, which is essential for maintaining sensor function under various engine conditions. With a wiring harness length of 13.8 inches, the sensor is designed for straightforward installation without the need for extensions or modifications. The thread diameter of 18.000 mm and thread length of 0.38 inches ensure a secure and proper fit in the exhaust system of compatible Acura and Honda vehicles.
Common Applications and Issues Addressed
- Replacement for faulty or failing air/fuel ratio sensors in Acura Civic, CR-V, and RSX
- Helps resolve engine performance issues related to incorrect air-fuel mixture readings
- Supports emission control system compliance by providing accurate sensor data
- Addresses check engine light triggers related to sensor malfunction
- Improves fuel efficiency by enabling precise fuel mixture adjustments
Installation Notes and Tips
Installation of the NTK 24665 sensor requires no mounting bracket as it is designed for direct fitment. Ensure the sensor threads match the exhaust port and avoid cross-threading during installation. The 13.8-inch wiring harness length allows for easy connection to the vehicle’s existing wiring without additional adapters. It is recommended to use anti-seize compound on the threads to facilitate future removal. Always verify compatibility with your specific Acura or Honda model before installation.
Quality Assurance and Warranty
NTK sensors are manufactured to meet strict quality standards and OEM specifications. The Direct Fit 4-Wire A/F Sensor 24665 undergoes rigorous testing to ensure durability and reliable performance under normal operating conditions. While specific warranty details are not provided here, NTK typically offers coverage against manufacturing defects. Consult the product documentation or supplier for exact warranty terms.
| Brand | NTK |
|---|---|
| Part Number | 24665 |
| Position | Direct Fit 4-Wire A/F Sensor, Upstream |
| Mounting Bracket Included | No |
| Sensor Type | Heated |
| Thread Diameter | 18.000 |
| Thread Length | 0.38 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 13.8 |
This part fits 23 vehicles. Search below:
| Year | Make | Model | Submodel | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2005 | Honda | Civic | 2.0L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2005 | Honda | Civic | 1.7L | L4 | Upstream | Located in Manifold; B1S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor | ||
| 2005 | Honda | Civic | 1.7L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2005 | Honda | Civic | 1.3L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2004 | Acura | RSX | Type-S | 2.0L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | |
| 2004 | Acura | RSX | Base | Manual | 2.0L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Honda | Civic | 2.0L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2004 | Honda | Civic | 1.7L | L4 | Upstream | Located in Manifold; B1S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor | ||
| 2004 | Honda | Civic | 1.7L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2004 | Honda | Civic | 1.3L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2004 | Honda | CR-V | 2.4L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2003 | Acura | RSX | Type-S | 2.0L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | |
| 2003 | Acura | RSX | Base | Manual | 2.0L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Honda | Civic | 2.0L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2003 | Honda | Civic | 1.7L | L4 | Upstream | Located in Manifold; B1S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor | ||
| 2003 | Honda | Civic | 1.3L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2003 | Honda | CR-V | 2.4L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2002 | Acura | RSX | Type-S | 2.0L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | |
| 2002 | Acura | RSX | Base | Manual | 2.0L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2002 | Honda | Civic | 2.0L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2002 | Honda | Civic | 1.7L | L4 | Upstream | Located in Manifold; B1S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor | ||
| 2002 | Honda | CR-V | 2.4L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | ||
| 2001 | Honda | Civic | 1.7L | L4 | Upstream | Located in Manifold; B1S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.