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NTK 24657 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right
Overview of NTK Direct Fit 4-Wire A/F Sensor 24657
The NTK Direct Fit 4-Wire A/F Sensor 24657 is designed for precise air/fuel ratio monitoring in select Subaru and Toyota vehicles. This heated sensor ensures accurate emissions control and optimal engine performance for models like the Toyota Camry, RAV4, Solara, and Subaru Outback.
- Heated 4-wire air/fuel ratio sensor for reliable operation
- Specific fit for Subaru and Toyota models including Camry, Outback, RAV4, and Solara
- Thread diameter of 18.0 mm and thread length of 0.38 inches for proper installation
- Wiring harness length of 20.5 inches for convenient connection
- Mounting bracket not included, designed for direct fit installation
Details on the Direct Fit 4-Wire A/F Sensor Product Line
The NTK Direct Fit 4-Wire A/F Sensor line focuses on providing vehicle-specific air/fuel ratio sensors that integrate seamlessly with the factory wiring and mounting points. This product line emphasizes compatibility and ease of installation, reducing the need for modifications. The 4-wire heated sensor design supports faster warm-up times and improved sensor response, which is critical for maintaining emissions compliance and engine efficiency.
Technical Description and Features
This air/fuel ratio sensor features a heated element and four wires, allowing it to reach operating temperature quickly and provide accurate readings under various driving conditions. The sensor’s thread diameter of 18.0 mm and thread length of 0.38 inches ensure a secure fit in the exhaust system. With a wiring harness length of 20.5 inches, the sensor can be connected without strain or the need for extensions. It is designed specifically for certain Subaru and Toyota models, including the Camry, Outback, RAV4, and Solara, ensuring compatibility and reliable performance.
Common Applications and Issues Addressed
- Replacement for faulty or worn air/fuel ratio sensors in Subaru Outback and Toyota Camry
- Helps resolve engine performance issues related to incorrect air/fuel mixture
- Supports emissions 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 24657 sensor requires no mounting bracket as it is designed for direct fitment. Ensure the sensor threads match the exhaust port with an 18.0 mm diameter and 0.38 inch length. The 20.5-inch wiring harness length allows for straightforward connection to the vehicle’s existing wiring harness without modification. It is recommended to use anti-seize compound on the threads during installation to prevent damage and facilitate future removal.
Quality Assurance and Warranty
NTK sensors are manufactured to meet OEM specifications for fit, form, and function. The Direct Fit 4-Wire A/F Sensor 24657 undergoes rigorous testing to ensure durability and accurate sensor output. While specific warranty details are not provided here, NTK typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.
| Brand | NTK |
| Part Number | 24657 |
| Position | Direct Fit 4-Wire A/F Sensor, Upstream Left |
| 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 | 20.5 |
This part fits 21 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2004 | Subaru | Outback | 3.0L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | |
| 2004 | Subaru | Outback | 3.0L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor | |
| 2003 | Subaru | Outback | 3.0L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | |
| 2003 | Subaru | Outback | 3.0L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor | |
| 2003 | Toyota | Camry | 2.4L | L4 | Upstream | Located in Manifold Before Warm-up (Front) Catalyst; B1S1; Federal Emissions; A/F Sensor; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor | |
| 2003 | Toyota | RAV4 | 2.0L | L4 | Upstream | Cyls. 1 & 4; B1S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor | |
| 2003 | Toyota | Solara | 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 | Subaru | Outback | 3.0L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | |
| 2002 | Subaru | Outback | 3.0L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor | |
| 2002 | Toyota | Camry | 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 | Toyota | RAV4 | 2.0L | L4 | Upstream | Cyls. 1 & 4; B1S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor | |
| 2002 | Toyota | Solara | 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 | Subaru | Outback | 3.0L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | |
| 2001 | Subaru | Outback | 3.0L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor | |
| 2001 | Toyota | Camry | 2.2L | L4 | GAS | Upstream | B1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor |
| 2001 | Toyota | Camry | 2.2L | L4 | CNG | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2001 | Toyota | RAV4 | 2.0L | L4 | Upstream | Cyls. 1 & 4; B1S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor | |
| 2001 | Toyota | Solara | 2.2L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor | |
| 2000 | Toyota | Camry | 2.2L | L4 | GAS | Upstream | B1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor |
| 2000 | Toyota | Camry | 2.2L | L4 | CNG | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2000 | Toyota | Solara | 2.2L | L4 | Upstream | B1S1; Calif. Emissions; 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.