NTK 22540 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Direct-Fit Oxygen Sensor

The NTK 22540 is a specific-fit heated oxygen sensor built for direct replacement applications. It uses a threaded mounting design and a 4-wire configuration with a 13.75-inch harness length for a clean OE-style installation.

Compatible With Ford Mustang, Ford Transit Connect, Ford Expedition, Ford F-150, Lincoln Navigator, and Ford Transit van applications listed below, this NTK oxygen sensor is engineered for downstream use and OE-equivalent fit, form, and function.

Key Features

• Heated oxygen sensor design for faster operating response.
• Specific-fit construction for direct replacement applications.
• Threaded mounting type with 18 mm thread diameter.
• 4-wire configuration with 13.75-inch wiring harness length.
• OE-equivalent design for listed Ford and Lincoln applications.

Detailed Description

NTK 22540 is part of the Direct Fit Oxygen Sensor line, which focuses on application-specific coverage and OE-style replacement. NTK is known for oxygen sensor manufacturing and uses ceramic-based technology and extensive production testing to support consistent fit and function. This part number is listed for downstream positions on 2016-2023 Ford and Lincoln applications, including Ford Mustang, Ford Transit Connect, Ford Expedition, Ford F-150, Lincoln Navigator, and Ford Transit models.

This part cross-references Ford GK4Z9G444C for the same application.

What It Is Used For

• Replacing a failed downstream oxygen sensor.
• Restoring proper exhaust gas monitoring.
• Addressing sensor-related fault codes.
• Correcting drivability issues tied to inaccurate oxygen readings.
• Maintaining OE-style emissions system operation.

Installation Notes and Tips

Verify the connector, wire count, thread diameter, and downstream position before installation. Confirm the vehicle application against the fitment list for the exact year, model, and side where applicable. The threaded sensor design supports direct-fit replacement on the listed applications.

Quality Assurance

NTK states that its oxygen sensors are extensively tested during manufacturing to meet or exceed OE specifications. The brand is part of the NGK family and supplies original equipment oxygen sensors globally.