Walker 245-1229 Mass Air Flow Sensor

Walker Mass Air Flow Assembly for GM V8 Applications

Walker Mass Air Flow Assembly part number 245-1229 is a direct-fit mass air flow sensor assembly for select 2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Tahoe, GMC Sierra, Sierra 1500, Yukon, and Yukon XL 1500 applications. Built with a female 5-terminal connector and housing included, it is a practical replacement for restoring accurate airflow measurement in the engine management system.

The Walker Mass Air Flow Assembly line focuses on OE-style engine sensor replacement, backed by Walker Products’ long history in fuel system and engine management components. Part number 245-1229 is engineered to meet or exceed OEM standards and specifications for the listed GM truck and SUV applications.

Key Features

• Mass air flow sensor assembly for select Cadillac, Chevrolet, and GMC vehicles
• Housing included for a complete assembly-style replacement
• Female connector with 5 terminals
• Designed for 2007-2008 Cadillac Escalade, Escalade ESV, and Escalade EXT
• Also fits 2008 Chevrolet Tahoe and 2007-2008 GMC Sierra, Sierra 1500, Yukon, and Yukon XL 1500
• Walker part number 245-1229 for easy catalog matching

Detailed Description

Walker Products has supplied automotive fuel system and engine sensor components since 1946, and the Walker Mass Air Flow Assembly line reflects that experience in a replacement part built for accurate airflow sensing. This assembly is intended for vehicles that rely on precise mass air flow input for fuel delivery and engine control, including the 2007-2008 Cadillac Escalade family and related Chevrolet and GMC truck platforms. This part cross-references Delphi AF10058 and Standard Ignition MAS0258 for the same application.

Use Walker 245-1229 when replacing a worn or faulty mass air flow sensor assembly on compatible GM applications. The included housing and 5-terminal female connector support a straightforward OE-style replacement where the original sensor assembly has failed or become inaccurate.

What It Can Help Fix

• Rough idle caused by incorrect airflow readings
• Hesitation or stumble during acceleration
• Reduced fuel economy from improper air-fuel calculation
• Check engine light related to mass air flow sensor performance
• Hard starting or poor drivability on affected GM trucks and SUVs

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. This assembly uses a female connector with 5 terminals and includes the housing; mounting hardware is not included. Confirm the vehicle application against the listed fitment for 2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT, 2008 Chevrolet Tahoe, and 2007-2008 GMC Sierra, Sierra 1500, Yukon, and Yukon XL 1500.

Quality Assurance

Walker Products is ISO 9001 and IATF 16949 certified and supports its engine sensor products with in-house manufacturing, engineering, product management, and technical support. Part number 245-1229 is produced to meet or exceed OEM standards and specifications for the listed applications.