Autobest F4559 Electric Fuel Pump

Electric Fuel Pump for Mitsubishi Lancer

Autobest F4559 is an in-tank electric fuel pump built for 12V fuel systems that need steady pressure and consistent delivery. It is a turbine-style pump with a 70-90 PSI operating range and an average flow rating of 105 GPH, making it a direct-fit option for select Mitsubishi Lancer applications.

Compatible With 2002-2007 Mitsubishi Lancer applications, including SOHC listings where noted. The F4559 is also referenced for Mitsubishi Lancer fuel pump replacement searches where ethanol tolerance, in-tank mounting, and OE-style electrical connections matter.

• In-tank electric fuel pump with turbine design
• 12V operation with 5.3 amp average current draw
• Average flow rating of 105 GPH
• Operating pressure range: 70-90 PSI
• Male connector with 1 rectangular connector and 2 male terminals
• Filter inlet with male tube / 1 barb outlet
• Performance-grade construction using top-quality materials
• Superior ethanol tolerance for modern fuel blends
• Limited Lifetime Warranty

Detailed Product Overview

Autobest F4559 is an electric fuel pump for select Mitsubishi Lancer models from 2002 through 2007. It is engineered as an in-tank, performance-grade turbine pump with a single outlet and filter-style inlet, and it is supplied with the accessories needed for a complete installation, excluding the strainer. Autobest states that each pump is built from top-grade components and tested throughout manufacturing to help maintain consistent output and reliability. This part number, F4559, is also cross-referenced with Airtex E8548 for the same application.

Common Fuel System Issues

• Hard starting caused by low fuel pressure
• Engine hesitation or stumble under load
• Fuel delivery loss from a worn in-tank pump
• Intermittent drivability problems tied to inconsistent pump output
• Replacement needs for Mitsubishi Lancer fuel pump service

Installation Notes and Tips

Confirm vehicle year, engine configuration, and tank setup before ordering. For listed Mitsubishi Lancer applications, a strainer is required to validate the warranty on certain fitments, and some rows note that the tank seal is included. Verify connector style, inlet and outlet orientation, and pressure requirements before installation. The F4559 uses a male connector and in-tank mounting, so matching the original fuel module layout is important for proper fitment.

Quality Assurance

Autobest uses top-quality materials and tests fuel pumps during manufacturing to support consistent performance. The F4559 includes a Limited Lifetime Warranty and is built for ethanol-tolerant operation in today’s fuel systems.