Walker 245-2131 Mass Air Flow Sensor

Walker Mass Air Flow Sensor 245-2131

Restore accurate airflow measurement with the Walker Mass Air Flow Sensor 245-2131. This replacement sensor is built for direct-fit applications on select Chevrolet Express and GMC Savana vans, along with other listed GM vehicles, to help maintain proper engine management performance.

Key Features

• Walker Mass Air Flow Sensor line for engine management replacement
• 5-terminal female connector
• Mounting hardware included
• Housing not included
• Built to meet or exceed OEM standards and specifications
• ISO 9001/IATF16949 certified manufacturing process

Product Details

Walker Products has supplied fuel system and engine sensor components since 1946, with engineering and product support focused on accurate vehicle applications and quality control. Part number 245-2131 is a mass air flow sensor for emission control and engine management service, with fitment coverage that includes Fits 2003-2015 Chevrolet Express 2500, N/A; Fits 2003-2015 Chevrolet Express 3500, N/A; Fits 2003-2015 GMC Savana 2500, N/A; Fits 2003-2015 GMC Savana 3500, N/A; Fits 2003-2014 Chevrolet Express 1500, N/A; Fits 2003-2014 GMC Savana 1500, N/A; and Fits 2007 GMC Sierra 3500 Classic, N/A. This part cross-references Standard Ignition MAS0183 and MAS0219 for the same application.

Common Symptoms This Sensor Can Address

• Rough idle or unstable engine speed
• Incorrect air-fuel mixture readings
• Reduced throttle response
• Check engine light related to airflow sensor faults
• Driveability issues on Chevrolet Express and GMC Savana applications

Installation Notes

Verify connector style, terminal count, and application before installation. This sensor uses a female connector with 5 terminals and includes mounting hardware; the housing is not included. Confirm the vehicle’s original sensor configuration and clear diagnostic trouble codes after installation. For best results, inspect the intake tract and related wiring for contamination or damage before replacing the sensor.

Quality Assurance

Walker Products manufactures engine sensors to meet or exceed OEM standards and specifications. The company supports production with in-house manufacturing, engineering, and technical documentation, and operates under ISO 9001/IATF16949 certification. Part number 245-2131 is backed by that quality-focused manufacturing process.