NTK 22501 Oxygen Sensor

Direct Fit Oxygen Sensor for Ford and Mazda

The NTK Direct Fit Oxygen Sensor 22501 is a heated, threaded replacement sensor built for specific applications that call for OE-style fit and function. It is designed for downstream and selected upstream positions on Ford Ranger, Ford Explorer, Ford E-350 Super Duty, Mazda B3000, Mazda B4000, and Ford F-150 applications listed below.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• Specific-fit design for direct replacement on listed Ford and Mazda vehicles
• 4-wire configuration with a 30-inch wiring harness length
• 18 mm threaded mounting type for OE-style installation
• Built by NTK, a major original equipment oxygen sensor manufacturer
• Manufactured and tested to meet or exceed OE specifications

Product Details

NTK Direct Fit Oxygen Sensor 22501 is part of the NTK Sensor Specialist line, focused on OE-style replacement coverage for import and domestic vehicles. NTK uses ceramic manufacturing expertise and controlled production processes to deliver consistent sensor performance, fit, and form. This oxygen sensor is intended for vehicles that require a specific-fit, heated sensor with threaded mounting and a 4-wire harness layout. This part cross-references DENSO Auto Parts (e.g., 234-4070, 234-4495) for the same application.

What It Helps Fix

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn downstream or upstream sensor
• Reduced fuel economy caused by inaccurate exhaust feedback
• Emissions test failures tied to sensor response or signal degradation
• Rough idle or drivability issues linked to faulty exhaust oxygen monitoring

Installation Notes and Fitment

Fits 2010-2015 Ford E-350 Super Duty, downstream, B1S2; w/Ambulance Package; OE Equivalent Design; Direct Fit Oxygen Sensor.

Fits 2010 Ford F-150, downstream left, B2S2; w/Manual Transfer Case; OE Equivalent Design; Direct Fit Oxygen Sensor.

Fits 2001-2003 Ford Ranger, downstream, B1S2; Sensor w/22" Length; OE Equivalent Design; Direct Fit Oxygen Sensor.

Fits 2001-2003 Ford Ranger, downstream, B1S3; Sensor w/21" Length; OE Equivalent Design; Direct Fit Oxygen Sensor.

Fits 2001-2003 Mazda B3000, downstream, B1S3; Sensor w/21" Length; OE Equivalent Design; Direct Fit Oxygen Sensor.

Fits 2001-2003 Mazda B4000, downstream, B1S2; Sensor w/22" Length; OE Equivalent Design; Direct Fit Oxygen Sensor.

Fits 1997-2000 Ford Explorer, downstream; Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor.

Fits 1997-2000 Ford Ranger, downstream; Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor.

Fits 1995-2000 Ford Ranger, downstream, B1S3; OE Equivalent Design; Direct Fit Oxygen Sensor.

Fits 1995-2000 Mazda B3000, downstream, B1S3; OE Equivalent Design; Direct Fit Oxygen Sensor.

Fits 1997-2000 Mazda B4000, downstream; Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor.

Before ordering, verify connector style, sensor position, and harness routing against the vehicle’s original sensor. This NTK 22501 is a specific-fit replacement, so matching the listed application details is important for proper installation.

Quality Assurance

NTK manufactures oxygen sensors with OE-level application coverage and extensive production testing to support reliability and specification compliance. As part of the NGK family of products, NTK focuses on original equipment sensor technology for consistent replacement performance.