Standard Ignition MAS0523 Mass Air Flow Sensor

Mass Air Flow Sensor for OE-Style Replacement

The Standard Ignition MAS0523 mass air flow sensor is a direct-fit OE replacement built for proper fit, form, and function. It is engineered for reliable airflow measurement and consistent engine management performance across a wide range of Buick, Cadillac, Chevrolet, and GMC applications.

Compatible With 2019-2024 Cadillac XT4, 2020-2024 Cadillac CT4, and 2020-2024 Chevrolet Trailblazer applications, this sensor is a practical choice when replacing a worn or failing MAF sensor. The MAS0523 is also used on select Buick Encore GX and Envision models, plus Cadillac XT5, XT6, and GMC Acadia vehicles.

Key Features

• Direct-fit OE replacement for proper fit, form, and function
• Extensively tested to OE specifications for performance and service life
• New mass air flow sensor with aluminum housing material
• Push-on attachment method with plug-in oval connector
• 1 female connector, 3 male terminals, pin terminal type
• 2 bolt holes for secure mounting
• Housing not included

Detailed Description

Standard Ignition MAS0523 is a new mass air flow sensor designed to match OE requirements for the vehicles listed in the fitment data. Its direct-fit design helps ensure correct installation and dependable signal output, while the aluminum construction and OE-level testing support long service life. This part cross-references 2-14861 and MA1358 for the same application.

Fits 2020-2024 Buick Encore GX, N/A; Fits 2021-2024 Buick Envision, N/A; Fits 2020-2024 Cadillac CT4, N/A; Fits 2020-2024 Cadillac CT5, N/A; Fits 2019-2024 Cadillac XT4, N/A; Fits 2020-2024 Cadillac XT5, N/A; Fits 2021-2024 Cadillac XT6, N/A; Fits 2023-2024 Chevrolet Equinox, N/A; Fits 2021-2024 Chevrolet Trailblazer, N/A; Fits 2020-2023 GMC Acadia, N/A.

Common Replacement Reasons

• Rough idle caused by inaccurate airflow readings
• Check engine light related to mass air flow sensor faults
• Hesitation or poor throttle response during acceleration
• Reduced fuel economy from incorrect air-fuel calculations
• Driveability issues after sensor contamination or electrical failure

Installation Notes and Tips

Verify connector shape, terminal count, and mounting style before installation. The MAS0523 uses a female oval plug-in connector with a push-on attachment and 2-bolt mounting pattern, so matching the OE connector and air intake configuration is important for a proper repair. Inspect the intake tract for leaks or contamination before replacing the sensor.

Quality Assurance

Standard Ignition states that this sensor is tested to OE specifications and manufactured under complete quality control throughout the production process. That approach supports consistent performance and dependable fitment for the listed Buick, Cadillac, Chevrolet, and GMC vehicles.