Walker 245-1252 Mass Air Flow Sensor

Walker Mass Air Flow Assembly for Cadillac SRX and STS

Walker Mass Air Flow Assembly 245-1252 is a direct-fit mass air flow sensor assembly for select Cadillac applications. It is built with a 4-terminal female connector, includes mounting hardware, and is listed without a housing for a clean replacement setup.

Key Features

• Mass air flow sensor assembly for engine air measurement
• 4-terminal female connector
• Mounting hardware included
• Housing not included
• Walker part number 245-1252

Product Details

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 Assembly line is part of that broader product range, which includes engine sensors and fuel system components for the automotive aftermarket. Part number 245-1252 is a fitment-based replacement for 2004-2006 Cadillac SRX and 2005-2006 Cadillac STS applications, making it a relevant choice when servicing drivability and air metering concerns on these vehicles. This part cross-references Standard Ignition MAS0270 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation during acceleration
• Check engine light related to mass air flow sensor faults
• Poor fuel trim behavior from incorrect air measurement
• Driveability issues on 2004-2006 Cadillac SRX and 2005-2006 Cadillac STS

Installation Notes and Tips

Verify connector style, terminal count, and mounting points before installation. This Walker mass air flow sensor uses a female 4-terminal connection and is supplied without a housing, so reuse or inspect the existing air intake components as needed. Confirm the vehicle application against the listed fitment: 2004-2006 Cadillac SRX and 2005-2006 Cadillac STS. For best results, inspect the intake tract for leaks or contamination before replacing the sensor.

Quality Assurance

Walker Products manufactures engine management components to OEM-level standards and supports production with in-house engineering, product management, and technical resources. The company is ISO 9001 and IATF 16949 certified, reflecting controlled manufacturing and quality processes for aftermarket sensor applications.