Walker 245-1072 Mass Air Flow Sensor

Walker Mass Air Flow Assembly 245-1072

Walker Mass Air Flow Assembly 245-1072 is a direct-fit mass air flow sensor assembly for select Infiniti and Nissan applications. It is built with a housing included and a 3-terminal female connector layout for service on vehicles that require this configuration.

Key Features

• Mass air flow sensor assembly for emission control and engine management service
• Housing included for a complete replacement assembly
• 3-terminal female connector
• Manufactured by Walker Products, an ISO 9001/IATF16949 certified company
• Built to meet or exceed OEM standards and specifications

Product Details

The Walker Mass Air Flow Assembly line is part of Walker Products’ engine sensor offering, backed by the company’s manufacturing, engineering, and product support resources. Part number 245-1072 is intended for vehicles that use this sensor and housing configuration, including 1991-1994 Infiniti G20, 1991-1994 Nissan Sentra, 1991-1993 Nissan NX, and 1995 Infiniti G20 built up to April 1995. This part cross-references AP Exhaust 641631 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow signal input
• Check engine light related to mass air flow sensor faults
• Hesitation or poor throttle response during acceleration
• Fuel trim issues tied to incorrect air measurement
• Driveability problems on Infiniti G20 and Nissan Sentra or NX applications

Installation Notes

Verify connector style, terminal count, and housing configuration before installation. This assembly uses a female connector and does not include mounting hardware. Confirm vehicle fitment by year and model, especially for the 1995 Infiniti G20 application, which is listed for vehicles built up to April 1995. Use the existing service information and inspect the intake tract for contamination or leaks before replacing the sensor.

Quality Assurance

Walker Products states that its fuel system and engine sensor components are manufactured to meet or exceed OEM standards and specifications. The company supports production with in-house engineering, product management, and technical documentation, and operates as an ISO 9001/IATF16949 certified manufacturer.