Walker 245-1133 Mass Air Flow Sensor

Walker Mass Air Flow Assembly 245-1133

Walker Mass Air Flow Assembly 245-1133 is a direct-fit mass air flow sensor assembly for select GM vehicles. It is built with a 6-terminal female connector and includes the housing for a complete sensor assembly replacement.

Compatible with applications such as Chevrolet Malibu, Buick Lucerne, Cadillac DTS, Chevrolet Equinox, and Pontiac G6, this part supports accurate airflow measurement for engine management on a wide range of 2005-2012 vehicles.

Key Features

• Mass air flow sensor assembly with housing included
• 6-terminal female connector
• Direct-fit replacement for select Chevrolet, Buick, Cadillac, Pontiac, Saturn, and GMC applications
• Walker Mass Air Flow Assembly line for engine management service parts
• Part number 245-1133 for catalog and fitment lookup

Product Details

Walker Products has supplied fuel system and engine sensor components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards and specifications. The Walker Mass Air Flow Assembly line is part of that engine management portfolio, offering a replacement solution for vehicles that rely on precise airflow input to the engine control system. This assembly is listed for applications including 2006-2012 Chevrolet Malibu, 2006-2011 Buick Lucerne, 2006-2011 Cadillac DTS, 2005-2010 Pontiac G6, and 2008-2010 Saturn Vue. The 245-1133 part number is also cross-referenced to Standard Ignition MAS0183 for the same application.

What This Part Helps Address

• Rough idle caused by inaccurate airflow readings
• Check engine light related to mass air flow sensor faults
• Hesitation or poor throttle response during acceleration
• Incorrect fuel delivery from faulty air metering input
• Driveability issues on Chevrolet Malibu, Buick Lucerne, and Pontiac G6 applications

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. This assembly uses a female connector and 6 terminals, and mounting hardware is not included. Confirm exact vehicle application by year, make, and model before ordering, especially on 2005-2012 Chevrolet Malibu, Buick Lucerne, Cadillac DTS, and related GM platforms.

Quality Assurance

Walker Products is an ISO 9001/IATF16949 certified manufacturer with in-house product management and engineering support. Its engine sensor components are produced to support consistent fitment and OE-level specification control across the Walker Mass Air Flow Assembly line.