OE Quality
60-Day Returns

NTK 24111 Oxygen Sensor - Upstream
Overview of NTK Direct Fit Oxygen Sensor 24111
The NTK Direct Fit Oxygen Sensor 24111 is designed specifically for Toyota 4Runner and Pickup models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.
- Heated sensor type for faster warm-up and improved efficiency
- Specific fit for Toyota 4Runner and Pickup models
- 19.75-inch wiring harness length for convenient installation
- Flange mounting type with 18mm thread diameter
- Four-wire configuration for reliable signal transmission
Details on the Direct Fit Oxygen Sensor Product Line
The NTK Direct Fit Oxygen Sensor line is engineered to provide exact replacement sensors that match OEM specifications. This product line focuses on direct fitment, eliminating the need for modifications or additional adapters. The 24111 sensor maintains factory-level performance and durability, ensuring compatibility and ease of installation for Toyota vehicles.
Technical Description and Features
The NTK 24111 oxygen sensor features a heated element that allows the sensor to reach operating temperature quickly, reducing emissions during cold starts. Its four-wire design supports both the sensor signal and heater circuit, enhancing responsiveness and accuracy. The flange mounting type with an 18mm thread diameter ensures a secure and proper fit in the exhaust system. The 19.75-inch wiring harness length provides sufficient reach for straightforward connection without excess slack.
Common Applications and Problem Resolution
- Helps resolve check engine light triggers related to oxygen sensor faults
- Improves fuel efficiency by providing accurate air-fuel ratio data
- Reduces harmful emissions by ensuring proper catalytic converter function
- Addresses rough idling or engine hesitation caused by faulty sensors
- Prevents failed emissions tests due to sensor malfunction
Installation Notes and Tips
When installing the NTK 24111 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the sensor’s flange mounting and thread diameter match the exhaust port. The 19.75-inch wiring harness length allows for flexible routing, but avoid sharp bends or contact with hot surfaces. Reconnect all wiring securely to maintain sensor functionality.
Quality Assurance and Warranty
NTK oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The Direct Fit Oxygen Sensor 24111 undergoes rigorous testing to ensure durability and reliable performance. 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 | 24111 |
| Position | Direct Fit Oxygen Sensor, Upstream |
| Mounting Type | Flange |
| Sensor Type | Heated |
| Thread Diameter | 18.000 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 19.7500 |
This part fits 13 vehicles. Search below:
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1991 | Toyota | 4Runner | 3.0L | V6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor | |
| 1991 | Toyota | 4Runner | 2.4L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor | |
| 1991 | Toyota | Pickup | RWD | 3.0L | V6 | Upstream | B1S1; Federal Emissions; w/20" Lead Lgth; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 1991 | Toyota | Pickup | 4WD | 3.0L | V6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1991 | Toyota | Pickup | 4WD | 2.4L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1990 | Toyota | 4Runner | 3.0L | V6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor | |
| 1990 | Toyota | 4Runner | 2.4L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor | |
| 1990 | Toyota | Pickup | RWD | 3.0L | V6 | Upstream | B1S1; Federal Emissions; w/20" Lead Lgth; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 1990 | Toyota | Pickup | 4WD | 3.0L | V6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1990 | Toyota | Pickup | 4WD | 2.4L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1989 | Toyota | Pickup | RWD | 3.0L | V6 | Upstream | B1S1; w/20" Lead Lgth; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 1989 | Toyota | Pickup | 4WD | 3.0L | V6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1989 | Toyota | Pickup | 4WD | 2.4L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen 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.