Walker 245-1253 Mass Air Flow Sensor

Walker Mass Air Flow Assembly for GM Applications

Walker Mass Air Flow Assembly Part Number 245-1253 is a direct-fit engine sensor assembly for select Chevrolet Aveo, Chevrolet Aveo5, Pontiac G3, and Pontiac G3 Wave applications. With a 5-terminal female connector and housing included, it is built for vehicles that need accurate airflow signal input for proper engine management.

The Walker Mass Air Flow Assembly line focuses on OE-style replacement parts backed by Walker Products’ long history in fuel system and engine sensor manufacturing. Part number 245-1253 is engineered to meet or exceed OEM standards and specifications, with product development supported by in-house manufacturing, engineering, and technical documentation.

Key Features

• Mass air flow sensor assembly for engine air measurement
• Housing included for a complete assembly-style replacement
• 5-terminal female connector
• Direct-fit application coverage for select 2009-2011 GM small cars
• Walker part number 245-1253 for easy identification
• Cross-references Standard Ignition MAS0328 and Spectra Premium MA375 for the same application

Detailed Description

Walker 245-1253 is a mass air flow sensor assembly used in the intake and engine management system to help the vehicle’s control module interpret incoming air volume. Accurate airflow data is important for fuel delivery, idle quality, and overall drivability. This assembly is listed for 2009-2011 Chevrolet Aveo, 2009-2011 Chevrolet Aveo5, 2009-2010 Pontiac G3, and 2009 Pontiac G3 Wave, making it a focused replacement choice for these GM platforms.

Walker Products has supplied automotive fuel system and engine sensor components since 1946 and maintains ISO 9001/IATF16949 certification. That manufacturing background supports consistent part production, application accuracy, and technical support for service professionals and do-it-yourself repairs. If you are searching for a Walker Mass Air Flow Assembly for Chevrolet Aveo or Pontiac G3 applications, part number 245-1253 is the catalog reference to use.

What It Helps Address

• Rough or unstable idle caused by inaccurate airflow readings
• Hesitation or poor throttle response during acceleration
• Fuel trim issues related to incorrect air measurement
• Check engine light conditions tied to mass air flow sensor faults
• Driveability concerns on 2009-2011 Chevrolet Aveo and Aveo5, plus 2009-2010 Pontiac G3 and 2009 Pontiac G3 Wave

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. This assembly uses a female connector and includes the housing, while mounting hardware is not included. Confirm the intake tract is clean and inspect the air filter, ducting, and electrical connector condition before replacing the sensor assembly. For best results, clear diagnostic trouble codes and perform any required relearn or idle adaptation procedures after installation.

Quality Assurance

Walker Products manufactures engine management components to meet or exceed OEM standards and specifications. The brand’s ISO 9001/IATF16949 certification and in-house engineering support provide a controlled basis for part accuracy, application coverage, and technical documentation.