Walker 245-2086 Mass Air Flow Sensor

Walker 245-2086 Mass Air Flow Sensor

Walker 245-2086 is a sensor-only mass air flow sensor for select Ford and Mercury applications. It is built as a new, tested replacement part with a 4-terminal female connector and included mounting hardware for a direct service replacement.

Sensor Only Replacement

The Sensor Only line from Walker is focused on replacing the sensing element without the housing assembly. That makes it a practical choice when the original air duct and connector area are in good condition and you want a faster, more economical repair path. Walker also programs and tests each sensor for fit, form, and function before release.

• Sensor only design; housing not included
• 4-terminal female connector
• Mounting hardware included
• 100% new, not remanufactured
• Programmed and production-tested before sale
• Built to meet OE-style fuel trim and airflow calibration targets

Vehicle Fitment

• Fits 1995 Ford Explorer, N/A, Sensor Only
• Fits 1991-1994 Ford Escort, N/A, Sensor Only
• Fits 1991-1994 Mercury Tracer, N/A, Sensor Only

Detailed Description

Walker 245-2086 mass air flow sensor is engineered for select 1991-1994 Ford Escort, 1995 Ford Explorer, and 1991-1994 Mercury Tracer applications. As a sensor-only replacement, it is designed for vehicles where the original housing can be retained, while still restoring accurate airflow measurement for proper engine management. Walker’s manufacturing process includes custom circuit board engineering, calibration, and on-vehicle verification to help maintain consistent airflow signal output across the operating range.

This part cross-references Spectra Premium MA365S for the same application.

What It Helps Fix

• Rough idle caused by inaccurate airflow readings
• Hesitation or stumble during acceleration
• Check engine light related to mass air flow sensor performance
• Fuel trim issues from incorrect air measurement
• Poor drivability after sensor contamination or wear

Installation Notes

Before installation, inspect the air inlet tract, connector terminals, and surrounding ducting for dirt, oil residue, or damage. Because this is a sensor-only design, reuse of the original housing requires a clean mounting surface and careful handling of the sensing element. Avoid touching the sensing surface with bare hands and verify connector fitment before final assembly.

Quality Assurance

Walker Products has supplied fuel system components since 1946 and is an ISO 9001 and IATF 16949 certified manufacturer. This MAF sensor is new, programmed, and tested for fit, form, and function, with production verification and vehicle-based validation used during development.