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NTK 25691 Oxygen Sensor - Downstream Right
Overview of NTK Direct Fit Oxygen Sensor 25691
The NTK Direct Fit Oxygen Sensor 25691 is designed specifically for Kia Sorento models, providing precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a 33.5-inch wiring harness for straightforward installation.
- Heated oxygen sensor for faster response times
- Specific fit for Kia Sorento vehicles
- 33.5-inch wiring harness length for flexible routing
- Threaded mounting type with 18mm thread diameter
- Four-wire configuration for accurate signal transmission
Detailed Product Description
The NTK Direct Fit Oxygen Sensor 25691 is engineered to meet the exact specifications of Kia Sorento models, ensuring compatibility and reliable operation. As a heated sensor, it quickly reaches operating temperature, improving fuel efficiency and reducing emissions. The sensor’s 18mm threaded mounting type allows for secure installation in the exhaust system. With a 33.5-inch wiring harness and four wires, this sensor supports precise communication with the vehicle’s engine control unit (ECU).
The Direct Fit Oxygen Sensor product line by NTK focuses on providing vehicle-specific sensors that eliminate the need for modifications or splicing. This ensures a seamless replacement process and maintains the integrity of the vehicle’s emission control system.
Common Applications and Issues Addressed
- Restores accurate air-fuel mixture readings for Kia Sorento
- Resolves check engine light triggers related to oxygen sensor faults
- Improves fuel economy by providing correct feedback to the ECU
- Reduces harmful emissions by maintaining proper combustion
- Eliminates rough idling or engine hesitation caused by faulty sensors
Installation Notes and Tips
- Ensure the vehicle is cool before sensor removal to avoid burns
- Use appropriate oxygen sensor socket for threaded installation
- Verify wiring harness length and connector compatibility with Kia Sorento
- Do not over-tighten the sensor; follow manufacturer torque specifications
- Check for exhaust leaks after installation to maintain sensor accuracy
Quality Assurance and Warranty
NTK oxygen sensors undergo rigorous testing to meet OEM standards for durability and performance. The Direct Fit Oxygen Sensor 25691 is manufactured to provide consistent operation within Kia Sorento emission systems. Warranty coverage details should be confirmed with the product documentation or supplier.
| Brand | NTK |
|---|---|
| Part Number | 25691 |
| Position | Direct Fit Oxygen Sensor, Downstream Right |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 18.000 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 33.5000 |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Kia | Sorento | 3.8L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2009 | Kia | Sorento | 3.3L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2008 | Kia | Sorento | 3.8L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2008 | Kia | Sorento | 3.3L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2007 | Kia | Sorento | 3.8L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; 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.