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NTK 25648 Oxygen Sensor - Downstream or Upstream
Overview of NTK Direct Fit Oxygen Sensor 25648
The NTK Direct Fit Oxygen Sensor 25648 is designed specifically for Mini Cooper models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a 24.5-inch wiring harness for straightforward installation.
- Heated oxygen sensor for faster response times
- Specific fit for Mini Cooper vehicles
- 24.5-inch wiring harness length for flexible routing
- Threaded mounting with 18mm thread diameter
- Four-wire configuration for accurate signal transmission
Detailed Product Description
The NTK Direct Fit Oxygen Sensor 25648 is engineered to meet the exact specifications of Mini Cooper models, providing reliable and accurate oxygen level readings. This sensor is heated, which helps it reach operating temperature quickly, improving fuel efficiency and reducing emissions. The four-wire design supports both the sensor signal and heater circuit, ensuring consistent performance. With a threaded mounting type and an 18mm thread diameter, installation is secure and compatible with the vehicle’s exhaust system. The 24.5-inch wiring harness length offers sufficient reach for proper connection without excess slack.
About the NTK Direct Fit Oxygen Sensor Line
The Direct Fit Oxygen Sensor line by NTK is developed to provide vehicle-specific sensors that match OEM specifications. This product line focuses on delivering sensors that require no modifications during installation, maintaining factory fit and function. The 25648 sensor is part of this line, designed to fit Mini Cooper models precisely, ensuring compatibility and reliable emission control.
Common Applications and Issues Addressed
- Restores accurate air-fuel mixture readings for Mini Cooper engines
- Helps resolve check engine light triggers related to oxygen sensor faults
- Improves fuel economy by providing precise feedback to the engine control unit
- Reduces harmful emissions by maintaining proper combustion
- Prevents rough idling and engine performance issues caused by faulty sensors
Installation Notes and Tips
- Ensure the vehicle is cool before sensor replacement to avoid burns
- Use appropriate tools for threaded sensor removal and installation
- Verify the wiring harness length and connector compatibility before installation
- 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 are manufactured to meet strict quality standards, ensuring durability and reliable performance. The Direct Fit Oxygen Sensor 25648 undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier.
| Brand | NTK |
|---|---|
| Part Number | 25648 |
| Position | Direct Fit Oxygen Sensor, Downstream |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 18.000 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 24.5000 |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Mini | Cooper | 1.6L | L4 | Upstream | Bank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor |
| 2008 | Mini | Cooper | 1.6L | L4 | Downstream | B1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor |
| 2007 | Mini | Cooper | 1.6L | L4 | Upstream | Bank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor |
| 2007 | Mini | Cooper | 1.6L | L4 | Downstream | B1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor |
| 2006 | Mini | Cooper | 1.6L | L4 | Upstream | Bank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor |
| 2006 | Mini | Cooper | 1.6L | L4 | Downstream | B1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor |
| 2005 | Mini | Cooper | 1.6L | L4 | Upstream | Bank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor |
| 2005 | Mini | Cooper | 1.6L | L4 | Downstream | B1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor |
| 2004 | Mini | Cooper | 1.6L | L4 | Upstream | Bank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor |
| 2004 | Mini | Cooper | 1.6L | L4 | Downstream | B1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor |
| 2003 | Mini | Cooper | 1.6L | L4 | Upstream | Bank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor |
| 2003 | Mini | Cooper | 1.6L | L4 | Downstream | B1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor |
| 2002 | Mini | Cooper | 1.6L | L4 | Upstream | Bank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor |
| 2002 | Mini | Cooper | 1.6L | L4 | Downstream | B1S2 oxygen sensor meets OEM standards.; 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.