Airtex FS194 Fuel Pump Strainer

Fuel Pump Strainer for Nissan and INFINITI

Airtex FS194 is a specific-fit fuel pump strainer built to filter fuel before it reaches the pump and the rest of the fuel system. It uses gradient-density media to help trap contaminants early, supporting cleaner fuel delivery in Nissan Frontier, Pathfinder, Xterra, Maxima, and INFINITI QX4, G20, and I30 applications.

• Gradient-density media for staged filtration
• Internal fuel pump strainer with push-on attachment
• Specific fit for listed Nissan and INFINITI applications
• White strainer construction
• Fuel pump inlet filtration for OE-style service replacement

Key Fitment and Application Details

Compatible with 1999-2004 Nissan Frontier, 1996-2004 Nissan Pathfinder, 2000-2004 Nissan Xterra, 1997-2003 INFINITI QX4, 1999-2002 INFINITI G20, 1996-1999 INFINITI I30, and 1995-1999 Nissan Maxima. Airtex FS194 is a direct-fit fuel pump strainer for these vehicles, making it a practical choice when servicing the in-tank fuel pickup side of the system.

This part cross-references Delphi FS0169 and Carter STS-136 for the same application.

What It Helps Address

• Sediment and debris entering the fuel pump inlet
• Restricted fuel pickup caused by a clogged strainer
• Premature wear on the fuel pump from contaminated fuel
• Reduced fuel system cleanliness after tank service
• Fuel delivery issues tied to a deteriorated in-tank filter screen

Installation Notes and Tips

Install the strainer on the fuel pump inlet using the push-on attachment style and confirm the inside diameter matches the pump connection. Because this is an internal fuel system component, verify the vehicle application before service and replace the old strainer during fuel pump or tank maintenance. Airtex notes that a new strainer is required to validate the warranty.

Quality Assurance

Airtex fuel pump strainers use gradient-density filtration to provide the first stage of defense against fuel system contaminants. The FS194 is built as a specific-fit replacement for the listed Nissan and INFINITI applications and is intended to support reliable fuel system service.