Hitachi MAF0140 Mass Air Flow Sensor

The Hitachi MAF0140 is a new (not remanufactured) mass air flow sensor (MAF sensor) engineered to OE specifications for precise air measurement and reliable engine management. As a Tier 1 OE supplier, Hitachi designs its air flow sensors to the same exacting standards used in original equipment applications, ensuring a direct-fit replacement that performs correctly right out of the box.

Key Features:

• OE-Grade Accuracy: Precision sensing elements deliver fast, accurate air mass readings to the engine control module (ECM/ECU), enabling correct fuel trim and preventing rich or lean running conditions
• 100% Air Flow Tested: Every sensor is individually tested and calibrated to the specific application to meet strict OEM emissions and performance standards
• Integrated Air Temperature Sensor: Built-in induction air temperature (IAT) sensor provides maximum measurement accuracy across varying ambient conditions
• Contaminant Bypass Port: Specially designed housing channels moisture and airborne impurities away from the sensing elements, extending sensor life and maintaining consistent accuracy
• Welded Connections: Welded internal connections (rather than soldered) provide superior long-term durability and resistance to vibration-induced failures
• Multiple Output Types Available: Hitachi MAF sensors are available in analog, frequency, and ratiometric signal outputs to match OE system requirements
• New Construction: 100% new — never remanufactured or refurbished

The Hitachi MAF0140 mass air flow sensor is a critical engine management component that measures the volume and density of air entering the intake system, allowing the ECU to deliver the optimal air-to-fuel ratio for improved drivability, fuel efficiency, and emissions compliance. It is built to rigorous regulatory emissions standards covering both gasoline and diesel applications.