Walker 245-2133 Mass Air Flow Sensor

Walker Mass Air Flow Sensor 245-2133

Restore accurate airflow measurement with the Walker Mass Air Flow Sensor 245-2133. This replacement sensor is built for direct-fit applications on select Chevrolet, Buick, Cadillac, Pontiac, Saturn, and GMC vehicles, including Malibu, Impala, Equinox, and Lucerne models.

Walker Products has supplied fuel system and engine management components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards. The Walker Mass Air Flow Sensor line is backed by product management and technical support for dependable replacement selection.

Key Features

• Mass Air Flow Sensor for engine air measurement and fuel control input
• Part number 245-2133
• 5-terminal female connector
• Mounting hardware included
• Housing not included
• Direct replacement for select GM applications

Detailed Description

The Walker 245-2133 Mass Air Flow Sensor is used in engine management systems that rely on precise incoming air data for proper fuel delivery and drivability. It cross-references Standard Ignition MAS0183 and Spectra Premium MA900 for the same application. This sensor is listed for a wide range of GM vehicles, including 2006-2012 Chevrolet Malibu, 2006-2009 Chevrolet Impala, 2005-2009 Chevrolet Equinox, 2006-2011 Buick Lucerne, and 2005-2008 Pontiac Grand Prix. If you are replacing a failing MAF sensor on a Chevrolet Malibu, Buick Lucerne, or Pontiac G6, this part number 245-2133 is a direct-fit option for the specified applications.

Common Issues It May Solve

• Rough idle caused by inaccurate airflow readings
• Hesitation or stumble during acceleration
• Check engine light related to airflow sensor faults
• Poor fuel economy from incorrect air-fuel calculations
• Hard starting or unstable engine performance

Installation Notes and Tips

Verify connector style, terminal count, and vehicle application before installation. This sensor uses a 5-terminal female connector and includes mounting hardware; the housing is not included. Confirm the exact year, make, and model match for Chevrolet Malibu, Chevrolet Impala, Buick Lucerne, Pontiac G6, and other listed applications before clearing diagnostic codes and road testing.

Quality Assurance

Walker Products manufactures engine sensors and fuel system components to meet or exceed OEM standards and specifications. The company is ISO 9001 and IATF 16949 certified, with engineering and technical support used to maintain application accuracy and product quality.