Autobest F4170 Electric Fuel Pump

Autobest F4170 Electric Fuel Pump

The Autobest F4170 is an external electric fuel pump built for Porsche fuel delivery systems that need steady high-pressure output and ethanol-tolerant construction. It is a 12V rollervane pump with a 135 GPH average flow rating, 123.25 to 145 PSI operating range, and a screw-style connector layout for service-focused installations.

Key Features

• External 12V electric fuel pump for performance-grade fuel delivery
• Average flow rating of 135 GPH with 9.5A average current draw
• Rollervane pump design for high-pressure fuel system applications
• Operating pressure range of 123.25 to 145 PSI
• Two connectors with screw-style connector shape and threaded terminals
• Male threaded M12 x 1.5 outlet and 0.524-inch barb inlet
• Built with top-grade components and tested throughout manufacturing
• Superior ethanol tolerance for modern fuel blends
• Limited Lifetime Warranty

Detailed Description

Autobest F4170 is an external electric fuel pump engineered for Porsche 911, Porsche 924, and Porsche 928 fuel delivery applications that require a high-pressure external pump. The pump uses a rollervane design, draws an average of 9.5 amps, and supports a 12V electrical system. Its 135 GPH average flow rating and 123.25 to 145 PSI pressure range make it a direct-fit style solution for demanding fuel system service on classic Porsche models.

This part cross-references Bosch 69466 for the same application. Autobest part number F4170 is also a relevant search term for Porsche 911 external fuel pump replacement and Porsche 924 high-pressure fuel pump service.

What It Helps Address

• Fuel starvation caused by a weak or failing external pump
• Low fuel pressure in Porsche 911, 924, or 928 fuel systems
• Hard starting related to insufficient fuel delivery
• Engine hesitation under load from unstable pump output
• Poor drivability caused by inconsistent high-pressure fuel supply

Installation Notes and Tips

Compatible With 1977 Porsche 911, externally mounted pump; 1978-1983 Porsche 911; 1986-1989 Porsche 911, front pump; 1991-1992 Porsche 911, front pump; 1993-1994 Porsche 911, externally mounted pump; 1977-1982 Porsche 924, externally mounted high pressure pump; and 1978-1979 Porsche 928, externally mounted high pressure pump. Some Porsche 924 and 928 applications note that two fuel pumps may be required, including an in-tank pump and an externally mounted pump. The strainer is sold separately, and the package does not include a gasket or seal.

Before installation, confirm inlet and outlet routing, electrical connector style, and mounting location against the vehicle’s existing fuel system. Use the listed fitment notes for Porsche 911, Porsche 924, and Porsche 928 applications to verify whether the vehicle uses a front-mounted or externally mounted pump configuration.

Quality Assurance

Autobest states that only top-quality materials and top-grade components are used in this fuel pump, with testing performed at multiple stages of manufacturing. The F4170 is supplied with a Limited Lifetime Warranty.