Walker 245-1142 Mass Air Flow Sensor

Walker Mass Air Flow Assembly for BMW

The Walker Mass Air Flow Assembly helps maintain accurate airflow measurement for engine management systems that rely on precise sensor input. This Walker Mass Air Flow Assembly, part number 245-1142, is built for BMW applications and is a direct-fit style replacement for select 2001-2006 BMW models.

Key Features

• Mass air flow sensor assembly for engine management applications
• Housing included for a complete sensor assembly setup
• 3-terminal female connector
• Walker part number 245-1142 for easy identification
• Engineered by Walker Products, a long-standing fuel system and engine sensor manufacturer

Product Details

Walker Products has supplied fuel system and engine management components since 1946, with manufacturing and engineering processes focused on meeting or exceeding OEM standards and specifications. The Walker Mass Air Flow Assembly line is built for accurate vehicle application coverage, and this part is listed for BMW X5, BMW 330xi, BMW 330Ci, BMW 330i, BMW 530i, and BMW Z3 applications. If you are searching for a BMW mass air flow sensor replacement or a Walker 245-1142 MAF sensor for select BMW models, this part is a direct reference point for those applications.

This part cross-references Delphi AF10222 for the same application.

What It Helps Address

• Rough idle caused by incorrect airflow readings
• Hesitation or stumble during acceleration
• Check engine light related to mass air flow sensor performance
• Fuel trim issues from inaccurate air metering
• Poor drivability tied to engine management sensor faults

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. This unit uses a female connector with 3 terminals and includes the housing; mounting hardware is not included. Confirm exact vehicle coverage by year and model before ordering, especially on BMW 330Ci and BMW 330i applications with production-date limitations noted in the fitment data.

• Fits 2004-2006 BMW X5, N/A
• Fits 2001-2005 BMW 330xi, N/A
• Fits 2003 BMW 330Ci, N/A; fits vehicles up to March 2003
• Fits 2003 BMW 330i, N/A; fits vehicles up to September 2002
• Fits 2001-2003 BMW 530i, N/A
• Fits 2001-2003 BMW X5, N/A
• Fits 2001-2002 BMW 330Ci, N/A
• Fits 2001-2002 BMW 330i, N/A
• Fits 2001-2002 BMW Z3, N/A

Quality Assurance

Walker Products is an ISO 9001 and IATF 16949 certified manufacturer with in-house product management and engineering support. That process helps maintain accurate vehicle coverage, technical documentation, and production consistency for engine sensor applications such as this Walker Mass Air Flow Assembly 245-1142.