Walker 245-2123 Mass Air Flow Sensor

Walker Mass Air Flow Sensor 245-2123

Restore accurate air measurement with the Walker Mass Air Flow Sensor 245-2123. This replacement sensor is built for Mercedes-Benz applications that rely on precise airflow data for proper fuel delivery and engine management.

Walker Products has supplied fuel system and engine sensor components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards. The Walker Mass Air Flow Sensor line is backed by that experience for dependable replacement on select Mercedes-Benz models.

Key Features

• Mass air flow sensor for engine management and fuel control
• 5-terminal design with female connector
• Mounting hardware included
• No housing included
• Walker part number 245-2123
• Cross-reference: Delphi AF10388

Detailed Description

Walker 245-2123 is a direct-fit style mass air flow sensor for a wide range of Mercedes-Benz vehicles, including the SLK55 AMG, G55 AMG, G500, ML500, R500, C55 AMG, CL500, CLK500, CLK55 AMG, CLS500, E500, E55 AMG, S430, S500, SL500, E320, CLK430, ML55 AMG, CL55 AMG, CL600, E430, S55 AMG, S600, ML430, and C43 AMG. It is engineered to provide the airflow signal the engine control system uses to manage air-fuel ratio and drivability. If you are searching for a Mercedes-Benz mass air flow sensor replacement, Walker 245-2123 is listed for 1998-2010 applications across multiple V8 and AMG models.

What It Helps Solve

• Rough idle caused by inaccurate airflow readings
• Hesitation or sluggish throttle response
• Check engine light related to air metering faults
• Poor fuel economy from incorrect fuel delivery
• Driveability issues on Mercedes-Benz MAF sensor applications

Installation Notes

Verify connector style, terminal count, and vehicle application before installation. This sensor uses a female connector and 5 terminals, and it does not include a housing. Use the included mounting hardware as needed and inspect the intake tract for contamination, leaks, or damaged wiring before replacing the sensor. For fitment-based searches, this part is commonly referenced for Mercedes-Benz SL500, E500, and ML500 mass air flow sensor replacement needs.

Quality Assurance

Walker Products manufactures engine management components to meet or exceed OEM standards and specifications. The company is ISO 9001 and IATF 16949 certified, with product management and engineering support used to maintain application accuracy and technical documentation.