Walker 245-2160 Mass Air Flow Sensor

Walker Mass Air Flow Sensor 245-2160

The Walker Mass Air Flow Sensor 245-2160 is a direct-fit engine management component for select Nissan and INFINITI applications. It is built to meet or exceed OEM standards and specifications, with support from Walker’s manufacturing, engineering, and technical teams.

Key Features

• Walker Mass Air Flow Sensor, part number 245-2160
• 5-terminal female connector
• Mounting hardware included
• Housing not included
• Engineered for accurate airflow signal delivery in fuel-injection systems
• Fits 2003 Nissan Pathfinder, N/A
• Fits 2002 INFINITI I35, N/A
• Fits 2002 Nissan Maxima, N/A

Product Details

Walker Products has supplied fuel system and engine sensor components since 1946, and the Walker Mass Air Flow Sensor line reflects that long-running focus on OE-style replacement parts. This sensor is intended for vehicles that rely on precise airflow measurement to support proper fuel delivery and drivability. Part number 245-2160 also cross-references 5S2961 and 105149M3 for the same application.

For buyers searching for a mass air flow sensor for 2003 Nissan Pathfinder, 2002 Nissan Maxima, or 2002 INFINITI I35, this Walker unit provides a fitment-specific replacement option. The 5-terminal female connector and included mounting hardware help match the original service configuration where applicable.

Common Issues This Part May Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or stumble during acceleration
• Reduced fuel economy from incorrect air-fuel calculation
• Check engine light related to mass air flow sensor performance
• Poor throttle response on affected Nissan and INFINITI models

Installation Notes and Tips

Verify connector style, terminal count, and housing requirements before installation. Confirm the vehicle application against the part number 245-2160 and inspect the intake tract for contamination, vacuum leaks, or damaged wiring that could affect sensor performance. After installation, clear diagnostic trouble codes and road test the vehicle to confirm proper operation.

Quality Assurance

Walker Products manufactures engine sensors and fuel system 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.