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NTK 25660 Oxygen Sensor - Upstream Left or Upstream Right
| Brand | NTK 25660 |
|---|---|
| Position | Upstream Right and Upstream Left |
| Wiring Harness Length | 20.7500 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Thread Diameter | 18.000 |
| Mounting Type | Threaded |
| Product line | Direct Fit Oxygen Sensor |
| Fits | Land Rover · 2 vehicles |
Direct fit design. Specific-fit oxygen sensor for OE-style replacement service.
Heated sensor. Built for faster operating response and stable exhaust feedback.
OE-focused testing. Extensively tested to meet or exceed OE specifications.
Cross-references Walker Exhaust 16671, 75-3557 and 234-4828 for the same application. See all 5.
Direct Fit Oxygen Sensor Overview
NTK 25660 is a direct fit oxygen sensor built for specific Land Rover Freelander applications. It uses a heated, threaded design with a 4-wire harness and 18 mm thread diameter for OE-style replacement service.
Key Features
- Specific-fit oxygen sensor for targeted application coverage
- Heated sensor design for faster operating response
- Threaded mounting type with 18 mm thread diameter
- 4-wire configuration with 20.7500 harness length
- NTK 25660 direct fit replacement engineered for import and domestic coverage
Fitment Details
Fits 2005 Land Rover Freelander, upstream right.
Fits 2005 Land Rover Freelander, upstream left.
What It Helps Address
- Fault codes related to oxygen sensor performance
- Incorrect air-fuel ratio readings
- Slow sensor response during closed-loop operation
- Emissions test failures tied to sensor output
- Rough running caused by inaccurate exhaust feedback
Installation Notes and Tips
Confirm the upstream position and sensor location before ordering. Match the threaded mounting style, wire count, and harness length to the original unit. For Land Rover Freelander oxygen sensor replacement, verify the application details against the vehicle's OE configuration before installation.
Quality Assurance
NTK is part of the NGK family of products and is recognized as a major OE oxygen sensor supplier. Each sensor is extensively tested during manufacturing to meet or exceed OE specifications for fit, form, and function. Part number 25660 is supported by NTK's application coverage and OE-focused engineering.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Land Rover | Freelander | 2.5L | V6 | Upstream Right | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2005 | Land Rover | Freelander | 2.5L | V6 | Upstream Left | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| No rows match your filter. | ||||||