Walker 245-1198 Mass Air Flow Sensor

Walker Mass Air Flow Assembly for Ford and Lincoln

Walker Mass Air Flow Assembly Part Number 245-1198 is a direct-fit mass air flow sensor assembly for select 2003-2004 Ford Expedition and 2003-2004 Lincoln Navigator applications. It is built with a housing included and a 4-terminal female connector to match the listed vehicle configurations.

Key Features

• Mass air flow sensor assembly for emission control and engine management
• Housing included for a complete replacement assembly
• 4-terminal female connector
• Fits 2003-2004 Ford Expedition and 2003-2004 Lincoln Navigator
• Walker Part Number 245-1198 for application matching and catalog lookup

Product Details

The Walker Mass Air Flow Assembly line is part of Walker Products’ engine sensor offering, backed by decades of fuel system and aftermarket experience. Part number 245-1198 is manufactured to meet or exceed OEM standards and specifications, with engineering and product support focused on accurate vehicle application coverage. This mass air flow sensor assembly is listed for 2003-2004 Ford Expedition and 2003-2004 Lincoln Navigator models, making it a direct-reference option for drivers servicing those vehicles.

This part cross-references Delphi AF10131 and Standard Ignition MAS0167 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow measurement
• Check engine light related to mass air flow sensor faults
• Hesitation or poor throttle response
• Incorrect fuel delivery from faulty airflow input
• Driveability issues on Ford Expedition and Lincoln Navigator models

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. This assembly uses a female connector and 4 terminals, and mounting hardware is not included. Confirm the vehicle application against the part number 245-1198 and the listed fitment before replacing the sensor.

Quality Assurance

Walker Products is an ISO 9001/IATF16949 certified manufacturer with in-house manufacturing, engineering, and product management support. The brand states its engine sensors and fuel system components are produced to meet or exceed OEM standards and specifications.