Walker 245-1039 Mass Air Flow Sensor

Walker Mass Air Flow Assembly 245-1039

Walker Mass Air Flow Assembly 245-1039 is a direct-fit emission control sensor assembly for select Ford, Mazda, and Mercury applications. It is built with a housing included and a 4-terminal female connector layout for service replacement on vehicles such as the Ford Ranger, Mazda B3000, and Ford Taurus.

Key Features

• Mass air flow sensor assembly for emission control and engine management service
• Housing included for a complete assembly-style replacement
• 4-terminal female connector configuration
• Fits select 1995-2002 Ford, Mazda, and Mercury vehicles
• Walker part number 245-1039 for catalog and fitment lookup

Product Details

Walker Mass Air Flow Assembly 245-1039 is part of the Walker Mass Air Flow Assembly line, a product family focused on engine sensor and fuel system replacement parts. Walker Products has supplied automotive fuel system components since 1946 and manufactures parts to meet or exceed OEM standards and specifications, supported by in-house engineering, product management, and technical documentation. This part cross-references Delphi AF10117 and Spectra Premium MA196 for the same application. Common fitment includes the Ford Ranger, Mazda B2500, Mazda B3000, Ford Taurus, Mercury Sable, and Mercury Tracer.

What It Helps Fix

• Rough idle caused by inaccurate airflow measurement
• Hesitation or stumble during acceleration
• Check engine light related to air metering faults
• Poor fuel control from a failing mass air flow sensor
• Driveability issues on Ford Ranger, Mazda B3000, and Ford Taurus applications

Installation Notes

Verify connector style, terminal count, and housing configuration before installation. This assembly uses a female connector with 4 terminals and includes the housing; mounting hardware is not included. Confirm exact vehicle application by year, make, model, and notes, including the 1999 Ford Escort application limited to vehicles manufactured before February 2, 1999. Fits 1995-2001 Ford Ranger, 1998-2000 Mazda B3000, and 1996-1999 Ford Taurus as listed in the application data.

Quality Assurance

Walker Products is an ISO 9001/IATF16949 certified manufacturer with long-standing experience in engine management and fuel system components. The brand states its parts are produced to meet or exceed OEM standards and are backed by engineering and technical support resources.