Walker 245-3117 Mass Air Flow Sensor

Walker Complete Assembly Mass Air Flow Sensor

Walker 245-3117 is a complete assembly mass air flow sensor built for direct replacement on select Nissan and INFINITI applications. It is a 100% new, never remanufactured sensor that is programmed and tested for fit, form, and function before release.

This Walker Complete Assembly line includes sensor and housing assemblies for applications where the housing should be replaced along with the sensor. The design uses OEM-quality components, a custom engineered circuit board, and tuned flow characteristics to match the vehicle’s airflow range.

Key Features

• Part number 245-3117
• Complete assembly MAF sensor with housing
• Black housing with oblong connector shape
• Female connector, 5 terminals, pin terminal type
• 4 mounting holes for direct-fit installation
• 100% new, not remanufactured
• Production tested and verified with on-vehicle testing
• Made in the USA on select high-demand SKUs

Vehicle Fitment

• Fits 2020 Nissan NV350 Urvan, Complete Assembly
• Fits 2003-2008 INFINITI FX35, Complete Assembly
• Fits 2004-2007 INFINITI G35, Incl. Housing; Complete Assembly
• Fits 2003-2007 Nissan Murano, Complete Assembly
• Fits 2003-2006 Nissan 350Z, Complete Assembly
• Fits 2002-2006 Nissan Altima, Complete Assembly
• Fits 2003-2006 Nissan Sentra, Complete Assembly
• Fits 2004 Nissan Pathfinder, Complete Assembly
• Fits 2003 INFINITI G35, Complete Assembly

What It Helps Fix

• Rough idle caused by inaccurate airflow readings
• Hesitation or poor throttle response
• Check engine lights related to MAF sensor performance
• Fuel trim issues from incorrect air measurement
• Driveability problems after contamination or sensor wear

Installation Notes

Replace the complete housing assembly when the connector air tubes need cleaning or when the original housing may contaminate the new sensor. Handle the sensing element carefully and avoid touching it with bare hands. Verify connector shape, terminal count, and mounting pattern before installation. Part number 245-3117 is commonly searched for Nissan Altima MAF sensor, Nissan Murano MAF sensor, and INFINITI G35 mass air flow sensor replacement.

Quality Assurance

Walker Products has supplied automotive fuel system components since 1946 and operates as an ISO 9001 and IATF 16949 certified manufacturer. This MAF sensor is programmed, tested, and validated to meet or exceed OE long-term fuel trim expectations. This part cross-references Spectra Premium (e.g., MA202, MA398) for the same application.