For Ford Mazda F150 MAF Motorcraft Mass Air Flow Sensor AFLS131 3L3A-12B579-BA

Mass Air Flow Sensor for Ford Mazda F150

This mass air flow sensor, carrying OEM cross-reference numbers AFLS131 and 3L3A-12B579-BA, measures intake air volume so the engine control unit can deliver the correct fuel mixture.

Overview

This mass air flow sensor for Ford and Mazda vehicles replaces a failed or contaminated MAF unit that causes rough running or poor fuel economy. The MAF sensor relays intake air readings to the ECU for accurate fuel delivery on F150 and compatible Mazda applications. It suits DIY mechanics and shops repairing drivability faults on Ford and Mazda platforms.

Built For Performance

• Measures intake air mass for accurate ECU fuel calculations
• Cross-references OEM part numbers AFLS131 and 3L3A-12B579-BA
• Direct-fit design for the listed Ford and Mazda applications
• Housing and sensing element built for consistent airflow readings
• Restores smooth idle and throttle response when replacing a failed unit

Fits These Machines

• for Ford F150
• for Mazda vehicles using the 3L3A-12B579-BA MAF sensor

On-The-Job Use

• Replacing a contaminated or failed MAF sensor
• Diagnosing and fixing lean or rich running conditions
• Restoring fuel economy and idle quality
• Routine intake system repair on Ford and Mazda vehicles

Specs At A Glance

Good To Know

Q: Will this sensor need reprogramming after install? A: Most vehicles relearn the new mass air flow sensor automatically, but clearing codes and confirming proper readings after installation is recommended.

Q: How do I confirm this fits my vehicle? A: Match the OEM cross-reference numbers AFLS131 and 3L3A-12B579-BA against your old sensor and confirm your model and engine before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.