NTK 25749 Oxygen Sensor - Downstream or Intermediate

Direct-Fit Oxygen Sensor for Jaguar and Land Rover

NTK 25749 is a specific-fit heated oxygen sensor built for downstream and intermediate applications on select Jaguar and Land Rover models. It uses a threaded mounting design and OE-equivalent construction to support accurate exhaust monitoring and straightforward replacement.

As part of NTK’s Direct Fit Oxygen Sensor line, this sensor is engineered for the application-specific fit and function expected in import and domestic emission control service. NTK 25749 is a direct-fit replacement for vehicles that require a 4-wire heated sensor with the listed thread diameter and harness length.

Key Features

• Specific-fit oxygen sensor for direct replacement service
• Heated sensor design for faster operating response
• 4-wire configuration with threaded mounting
• OE-equivalent design for fit, form, and function
• Application coverage for downstream and intermediate positions

Detailed Description

NTK 25749 is designed for select Jaguar F-Type, XF, XJ, XE, E-Pace, and F-Pace applications, along with compatible Land Rover Discovery, Discovery Sport, Range Rover Evoque, Range Rover Sport, and Range Rover Velar models. The sensor’s direct-fit layout helps maintain the original connector style and mounting approach used in the vehicle’s exhaust system.

NTK is known for oxygen sensor manufacturing and uses ceramic technology developed in-house from raw material through finished product. This part number, 25749, is manufactured and tested to meet or exceed OE specifications for quality and reliability. This part cross-references C2D24758 for the same application.

What It Is Used For

• Replacing a failed oxygen sensor that triggers emissions-related fault codes
• Restoring proper exhaust feedback to the engine control system
• Addressing slow sensor response or inaccurate air-fuel readings
• Correcting drivability issues tied to sensor degradation
• Servicing downstream or intermediate sensor locations on supported vehicles

Installation Notes and Tips

Verify the vehicle’s year, make, model, and sensor position before ordering. Confirm the 4-wire heated configuration, threaded mounting style, and harness length match the original sensor. On Jaguar and Land Rover applications, position details such as downstream or intermediate placement should be matched exactly to the vehicle’s original setup.

Quality Assurance

NTK manufactures oxygen sensors to OE-level specifications and tests them extensively during production for quality and reliability. The brand’s OE-supplier background and application coverage support consistent replacement performance for emission control service.