NTK 25573 Oxygen Sensor - Downstream Left or Downstream Right

Direct Fit Oxygen Sensor for Jaguar

NTK 25573 is a direct fit oxygen sensor built for specific Jaguar applications. It uses a threaded mounting design, a 2-wire layout, and a 21.75-inch harness length for a precise replacement on downstream positions.

Key Features

• Specific-fit oxygen sensor for targeted applications
• Non-heated sensor design
• Threaded mounting type for secure installation
• 2-wire configuration with 21.75-inch wiring harness
• 18 mm thread diameter

Detailed Description

NTK 25573 is part of the Direct Fit Oxygen Sensor line, engineered for exact application coverage and OE-style replacement. NTK draws on its background as a major original equipment oxygen sensor supplier, and this sensor is manufactured with ceramic technology and tested during production to meet or exceed OE specifications. It is a non-heated, threaded oxygen sensor intended for downstream use on Jaguar XK8, Vanden Plas, XJ8, and XJR applications listed in the fitment data. This part cross-references Bosch 15633 and DENSO Auto Parts 234-2038 for the same application.

What It Is Used For

• Replacing a failed downstream oxygen sensor
• Addressing check engine light concerns related to oxygen sensor performance
• Restoring proper exhaust feedback for engine management
• Correcting drivability issues caused by inaccurate sensor readings

Installation Notes and Tips

Verify the connector style, harness length, thread diameter, and downstream left or right placement before installation. Confirm the vehicle application against the fitment table for Jaguar XK8, Vanden Plas, XJ8, and XJR models. Use the listed threaded mounting style and OE-equivalent placement notes to match the original sensor location.

Quality Assurance

NTK tests oxygen sensors during manufacturing to help ensure quality and reliability that meet or exceed OE specifications. The brand is part of the NGK family and is recognized for original equipment oxygen sensor production.