Walker 245-1248 Mass Air Flow Sensor

Walker Mass Air Flow Assembly 245-1248

The Walker Mass Air Flow Assembly 245-1248 is a direct-fit mass air flow sensor assembly for select Volkswagen applications. It is built for accurate airflow measurement to support proper fuel delivery, drivability, and engine management performance.

Compatible with 2004-2005 Volkswagen Passat and 2004-2008 Volkswagen Touareg, this Walker mass air flow sensor assembly is a practical replacement for vehicles showing airflow-related fault codes or drivability concerns. The 245-1248 part number is also referenced in OE-style cross applications for the same fitment.

Key Features

• Walker Mass Air Flow Assembly for emission control and engine management service
• Housing included for a complete assembly-style replacement
• 5-terminal female connector
• Direct-fit application for select Volkswagen Passat and Volkswagen Touareg models
• Built by Walker Products, a long-standing manufacturer of fuel system and engine sensor components
• Cross-references FEL-PRO 71012 and Standard Ignition MAS0290 for the same application

Product Details

Walker Products has supplied fuel system and engine sensor components since 1946 and manufactures to meet or exceed OEM standards and specifications. The Walker Mass Air Flow Assembly line focuses on accurate vehicle application coverage, supported by engineering, product management, and technical documentation. Part number 245-1248 is a fitment-based replacement for Volkswagen models that require a complete mass air flow assembly with a female 5-terminal connection.

Fits 2004-2005 Volkswagen Passat, N/A. Fits 2004-2008 Volkswagen Touareg, N/A. Fits 2005 Volkswagen Touareg, N/A. Fits 2006-2008 Volkswagen Touareg, N/A.

Common Issues This Part Can Address

• Check engine light related to mass air flow sensor performance
• Rough idle or unstable engine operation
• Hesitation during acceleration
• Poor fuel metering caused by inaccurate airflow readings
• Driveability problems tied to a failing airflow sensor assembly

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. This assembly includes the housing, and mounting hardware is not included. Confirm the vehicle application by year, make, and model before replacing the sensor to ensure proper fitment on your Volkswagen Passat or Volkswagen Touareg.

Quality Assurance

Walker Products is an ISO 9001/IATF16949 certified manufacturer with in-house engineering and product support focused on accurate applications and quality control. The 245-1248 mass air flow assembly is produced to support OEM-level fitment and specification requirements.