Hitachi MAF0128 Mass Air Flow Sensor

Hitachi MAF0128 Mass Air Flow Sensor

The Hitachi MAF0128 mass air flow sensor measures incoming air volume and airflow characteristics so the engine control system can maintain accurate fuel delivery. Built with precision sensing elements and quality components, it is calibrated for specific applications and 100% air flow tested for consistent performance.

Compatible with select Chevrolet Silverado 2500 HD, Silverado 3500 HD, Colorado, Express 2500, Express 3500, Impala, Equinox, Volt, and GMC Sierra 2500 HD, Sierra 3500 HD, Canyon, Terrain, Savana 2500, and Savana 3500 applications, this Hitachi MAF sensor is a direct-fit OE-style replacement for vehicles that require a pin-terminal connector.

Key Features

• Hitachi part number MAF0128 for specific OE-style applications
• Measures air flow entering the engine for precise fuel management
• Calibrated for each application to match factory requirements
• 100% air flow tested before release
• Uses protected circuitry and durable components for reliable operation
• New sensor; wiring harness not included

Detailed Description

Hitachi MAF0128 is engineered for vehicles that rely on accurate mass air flow input to support emissions control and drivability. The sensor uses precision elements to read the amount and characteristics of air entering the engine, helping the control module maintain the correct air-fuel balance. This matters on applications such as the Chevrolet Silverado 2500 HD, GMC Sierra 3500 HD, Chevrolet Colorado, and GMC Terrain, where stable airflow data is critical to engine performance and emissions compliance.

This part cross-references Standard Ignition MAS0450 for the same application. It is also listed with interchange references 23324767 and AF10412. The design includes durable circuitry and, where applicable, a contaminant bypass port to help maintain dependable readings over time.

Common Issues This Sensor Can Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or poor throttle response during acceleration
• Check engine light related to mass air flow sensor faults
• Incorrect fuel trim from contaminated or failing airflow measurement
• Emissions test failures tied to faulty air metering

Installation Notes and Tips

Verify connector style and terminal type before installation; this application uses a pin-style connection and does not include a wiring harness. Confirm exact vehicle fitment by year, make, model, and emissions configuration before ordering. For best results, inspect the intake tract for dirt, oil contamination, or air leaks that could affect sensor readings after replacement.

Quality Assurance

Hitachi manufactures this MAF sensor with application-specific calibration and air flow testing to support OE-level performance expectations. The brand’s focus on precision components and protected circuitry helps deliver a durable replacement for emission control service.