NTK 25623 Oxygen Sensor - Upstream Left or Upstream Right

Overview of NTK Direct Fit Oxygen Sensor 25623

The NTK Direct Fit Oxygen Sensor 25623 is designed specifically for Land Rover vehicles including Discovery, Freelander, and Range Rover models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated oxygen sensor for faster response times
• Specific fit for Land Rover Discovery, Freelander, and Range Rover
• 18.5-inch wiring harness length for easy installation
• Threaded mounting type with 18mm thread diameter
• Four-wire configuration for reliable signal transmission

Direct Fit Oxygen Sensor Product Line Details

The NTK Direct Fit Oxygen Sensor line is engineered to provide exact replacement sensors tailored to specific vehicle applications. This product line focuses on delivering sensors that match OEM specifications, ensuring proper fitment and function without modification. The 25623 sensor maintains the integrity of the vehicle’s emission control system by using a heated sensor element and a threaded mounting design for secure installation.

Technical Description and Features

This oxygen sensor features a heated sensor type that allows it to reach operating temperature quickly, improving emission readings shortly after engine start. The 18.5-inch wiring harness length provides sufficient reach for straightforward connection to the vehicle’s wiring system. With four wires, the sensor supports both the heating element and signal output, ensuring accurate data transmission to the engine control unit. The 18mm threaded mounting type secures the sensor firmly in place, maintaining a proper seal and preventing exhaust leaks.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces emissions by providing accurate oxygen level readings
• Prevents engine performance issues related to faulty sensors
• Resolves check engine light triggers caused by oxygen sensor faults
• Supports compliance with emission regulations for Land Rover Discovery, Freelander, and Range Rover

Installation Notes and Tips

• Ensure the vehicle is cool before sensor removal to avoid burns
• Use appropriate oxygen sensor socket for removal and installation
• Verify wiring harness length and connector compatibility before installation
• Apply anti-seize compound on threads if recommended by vehicle manufacturer
• Check for exhaust leaks after installation to ensure proper sealing

Quality Assurance and Warranty

NTK oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The Direct Fit Oxygen Sensor 25623 undergoes rigorous testing to ensure durability and reliable performance in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier.