NTK 23552 Oxygen Sensor - Upstream

Direct Fit Oxygen Sensor Overview

The NTK 23552 is a direct fit oxygen sensor built for specific upstream applications across a wide range of Ford, Mercury, Lincoln, Jeep, and American Motors vehicles. It uses a threaded mounting design with a 7-inch harness length, a single wire, and a non-heated sensor layout for applications that call for this configuration.

Key Features

• Direct fit oxygen sensor for specific upstream applications
• Threaded mounting type with 18 mm thread diameter
• Non-heated sensor design with one-wire construction
• 7-inch wiring harness length for matched replacement routing
• OE-equivalent design for factory-style fit, form, and function

Detailed Application Information

NTK 23552 is part of the Direct Fit Oxygen Sensor line, which focuses on application-specific replacement parts rather than universal coverage. As an oxygen sensor for emission control systems, it is used to monitor exhaust oxygen content and support air-fuel ratio feedback in upstream locations. This part cross-references Delphi ES10131 and Spectra Premium OS5144 for the same application. The NTK 23552 is listed for many classic Ford and Mercury platforms, including Ford Mustang, Ford Bronco, and Mercury Cougar, with fitment that also extends to Jeep Cherokee and Jeep CJ-series applications.

What This Part Helps Address

• Faulty oxygen sensor readings
• Emission control warning conditions
• Air-fuel ratio feedback issues
• Rough running caused by inaccurate exhaust oxygen data
• Replacement needs for an OE-style upstream sensor

Installation Notes and Quality

Confirm the vehicle’s year, make, model, and upstream sensor location before ordering. The threaded design and specific-fit configuration support direct replacement on listed applications, including Ford F-150, Ford Ranger, and Lincoln Town Car fitments. NTK states that its oxygen sensors are extensively tested during manufacturing and built to meet or exceed OE specifications, with OE application technology backed by its role as a major original equipment oxygen sensor supplier.