Walker
Walker Mass Air Flow Assembly

Walker 245-3102 Mass Air Flow Sensor

Brand Walker 245-3102
Connector Gender Female
Housing Included Yes
Mounting Hardware Included No
Terminal Quantity 6
Product line Walker Mass Air Flow Assembly
Fits Mazda, Ford, and Mercury · 88 vehicles

OE-standard engineering. Built to meet or exceed OEM specifications.

Mass air flow sensor. Measures incoming air for precise engine management.

Female connector. Six terminals for a secure electrical connection.

Cross-references Spectra Premium MA160, 4M1044 and 105027H7 for the same application. See all 5.

$82.49Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
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Step 2 — Quantity
Order total $82.49
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Mass Air Flow Assembly 245-3102

Walker Mass Air Flow Assembly 245-3102 is a direct-fit engine management sensor assembly for select Ford, Mazda, and Mercury applications. It is built with a housing included and a 6-terminal female connector layout for service replacement on vehicles such as the Ford Escape, Ford Focus, Ford Explorer, Mazda Tribute, and Mercury Mariner.

Key Features

  • Mass air flow sensor assembly for emission control and engine management service
  • Housing included for a complete assembly replacement
  • 6-terminal female connector configuration
  • Fits select 1999-2006 Ford, Mazda, and Mercury vehicles
  • Walker Mass Air Flow Assembly 245-3102 for OE-style fitment support

Walker Mass Air Flow Assembly Line

The Walker Mass Air Flow Assembly line is part of Walker Products’ engine sensor and fuel system portfolio. Walker has supplied automotive aftermarket components since 1946 and manufactures products to meet or exceed OEM standards and specifications, with engineering and product support focused on accurate vehicle applications and technical documentation.

Detailed Description

This mass air flow sensor assembly measures incoming air so the engine control system can calculate fuel delivery more accurately. For drivers searching for a Ford Escape mass air flow sensor, Ford Focus MAF assembly, or Mazda Tribute replacement sensor, part number 245-3102 provides a service-ready option for listed applications. This part cross-references Spectra Premium MA160 for the same application.

Common Problems It Can Address

  • Rough idle caused by inaccurate airflow readings
  • Hesitation or stumble during acceleration
  • Check engine light related to air metering faults
  • Poor fuel economy from incorrect air-fuel calculation
  • Driveability issues on Ford Explorer, Mercury Mariner, and Mazda Tribute applications

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. This assembly does not include mounting hardware. Inspect the intake tract, air filter housing, and electrical connector for contamination or damage before replacing the sensor. Confirm vehicle application by year, make, and model, including notes such as complete assembly or Walker Mass Air Flow Assembly where listed.

Quality Assurance

Walker Products is ISO 9001 and IATF 16949 certified and backs its engine sensor products with in-house manufacturing, engineering, and technical support. The brand states its components are produced to meet or exceed OEM standards and specifications.

This part fits 88 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006FordEscape3.0LV6N/AComplete Assembly
2006MazdaTribute3.0LV6N/AWalker Mass Air Flow Assembly
2006MercuryMariner3.0LV6N/AComplete Assembly
2005FordEscape3.0LV6N/AComplete Assembly
2005FordExplorer Sport Trac4.0LV6N/AComplete Assembly
2005MazdaTribute3.0LV6N/AWalker Mass Air Flow Assembly
2005MercuryMariner3.0LV6N/AComplete Assembly
2004FordEscape2.0LL4N/AWalker Mass Air Flow Assembly
2004FordExplorer Sport Trac4.0LV6N/AComplete Assembly
2004FordFocus2.0LL4N/AWalker Mass Air Flow Assembly
2004FordMustang3.9LV6N/AComplete Assembly
2004MazdaTribute3.0LV6N/AWalker Mass Air Flow Assembly
2004MazdaTribute2.0LL4N/AWalker Mass Air Flow Assembly
2003FordE-1504.2LV6N/AComplete Assembly
2003FordE-150 Club Wagon4.2LV6N/AComplete Assembly
2003FordE-2504.2LV6N/AComplete Assembly
2003FordEscape2.0LL4N/AWalker Mass Air Flow Assembly
2003FordEscort2.0LL4N/AWalker Mass Air Flow Assembly
2003FordExplorer4.0LV6N/AComplete Assembly
2003FordExplorer Sport4.0LV6N/AComplete Assembly
2003FordExplorer Sport Trac4.0LV6N/AComplete Assembly
2003FordFocus2.0LL4N/AWalker Mass Air Flow Assembly
2003FordRanger3.0LV6N/AWalker Mass Air Flow Assembly
2003FordRanger2.3LL4N/AWalker Mass Air Flow Assembly
2003FordTaurus3.0LV6N/AWalker Mass Air Flow Assembly
2003MazdaB23002.3LL4N/AWalker Mass Air Flow Assembly
2003MazdaB30003.0LV6N/AWalker Mass Air Flow Assembly
2003MazdaB40004.0LV6N/AWalker Mass Air Flow Assembly
2003MazdaTribute3.0LV6N/AWalker Mass Air Flow Assembly
2003MazdaTribute2.0LL4N/AWalker Mass Air Flow Assembly
2003MercuryMountaineer4.0LV6N/AComplete Assembly
2003MercurySable3.0LV6N/AWalker Mass Air Flow Assembly
2002FordE-150 Econoline4.2LV6N/AComplete Assembly
2002FordE-150 Econoline Club Wagon4.2LV6N/AComplete Assembly
2002FordE-250 Econoline4.2LV6N/AComplete Assembly
2002FordEscape2.0LL4N/AWalker Mass Air Flow Assembly
2002FordEscort2.0LL4N/AWalker Mass Air Flow Assembly
2002FordExplorer4.0LV6N/AComplete Assembly
2002FordExplorer Sport4.0LV6N/AComplete Assembly
2002FordExplorer Sport Trac4.0LV6N/AComplete Assembly
2002FordFocus2.0LL4N/AWalker Mass Air Flow Assembly
2002FordRanger3.0LV6N/AWalker Mass Air Flow Assembly
2002FordRanger2.3LL4N/AWalker Mass Air Flow Assembly
2002FordTaurus3.0LV6N/AWalker Mass Air Flow Assembly
2002MazdaB23002.3LL4N/AWalker Mass Air Flow Assembly
2002MazdaB30003.0LV6N/AWalker Mass Air Flow Assembly
2002MazdaB40004.0LV6N/AWalker Mass Air Flow Assembly
2002MazdaTribute3.0LV6N/AWalker Mass Air Flow Assembly
2002MazdaTribute2.0LL4N/AWalker Mass Air Flow Assembly
2002MercuryMountaineer4.0LV6N/AComplete Assembly
2002MercurySable3.0LV6N/AWalker Mass Air Flow Assembly
2001FordE-150 Econoline4.2LV6N/AComplete Assembly
2001FordE-150 Econoline Club Wagon4.2LV6N/AComplete Assembly
2001FordE-250 Econoline4.2LV6N/AComplete Assembly
2001FordEconoline4.2LV6N/AComplete Assembly
2001FordEscape2.0LL4N/AWalker Mass Air Flow Assembly
2001FordEscort2.0LL4N/AWalker Mass Air Flow Assembly
2001FordExplorer5.0LV8N/AComplete Assembly
2001FordExplorer Sport4.0LV6N/AComplete Assembly
2001FordExplorer Sport Trac4.0LV6N/AComplete Assembly
2001FordFocus2.0LL4N/AWalker Mass Air Flow Assembly
2001FordRanger3.0LV6N/AWalker Mass Air Flow Assembly
2001FordRanger2.3LL4N/AWalker Mass Air Flow Assembly
2001FordTaurus3.0LV6N/AWalker Mass Air Flow Assembly
2001MazdaB23002.3LL4N/AWalker Mass Air Flow Assembly
2001MazdaB30003.0LV6N/AWalker Mass Air Flow Assembly
2001MazdaB40004.0LV6N/AWalker Mass Air Flow Assembly
2001MazdaTribute3.0LV6N/AWalker Mass Air Flow Assembly
2001MazdaTribute2.0LL4N/AWalker Mass Air Flow Assembly
2001MercuryMountaineer5.0LV8N/AComplete Assembly
2001MercurySable3.0LV6N/AWalker Mass Air Flow Assembly
2000FordE-150 Econoline4.2LV6N/AComplete Assembly
2000FordE-150 Econoline Club Wagon4.2LV6N/AComplete Assembly
2000FordE-250 Econoline4.2LV6N/AComplete Assembly
2000FordEscort2.0LL4N/AWalker Mass Air Flow Assembly
2000FordExplorer5.0LV8N/AComplete Assembly
2000FordFocus2.0LL4N/AWalker Mass Air Flow Assembly
2000FordTaurus3.0LV6N/AWalker Mass Air Flow Assembly
2000FordWindstar3.0LV6N/AWalker Mass Air Flow Assembly
2000MercuryMountaineer5.0LV8N/AComplete Assembly
2000MercurySable3.0LV6N/AWalker Mass Air Flow Assembly
1999FordE-150 Econoline4.2LV6N/AComplete Assembly
1999FordE-150 Econoline Club Wagon4.2LV6N/AComplete Assembly
1999FordE-250 Econoline4.2LV6N/AComplete Assembly
1999FordEscort2.0LL4N/ACompatible with vehicles manufactured from February 2, 1999.; Walker Mass Air Flow Assembly
1999FordExplorer5.0LV8N/AComplete Assembly
1999FordWindstar3.0LV6N/AWalker Mass Air Flow Assembly
1999MercuryMountaineer5.0LV8N/AComplete Assembly
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Spectra Premium — MA1604M1044105027H7105032H7105162M3