Autobest F4043 Electric Fuel Pump

Autobest Fuel Pump and Strainer Set F4043

The Autobest F4043 is an in-tank electric fuel pump built for Nissan pickup applications that need steady fuel delivery and ethanol-tolerant materials. It uses a rollervane pump design, 12V operation, and a 5/16 in. hose outlet for direct fuel system service.

Autobest’s Fuel Pump and Strainer Set line focuses on complete pump-side service parts for fuel delivery repairs. This F4043 unit is built with top-grade components and tested throughout manufacturing to support consistent output in demanding daily-driver conditions.

Key Features

• In-tank electric fuel pump for Nissan D21 and Nissan Pickup applications
• Rollervane pump type with 130 GPH average flow rating
• 12V electrical system with 6.5A average current draw
• Operating pressure range of 70 to 90 PSI
• 5/16 in. hose outlet with single outlet configuration
• FKM gasket/seal material for fuel-system durability
• Superior ethanol tolerance for modern fuel blends
• Limited Lifetime Warranty

Detailed Description

Autobest F4043 is an electric fuel pump for in-tank installation on select Nissan D21 and Nissan Pickup models. It is listed for 1986-1987 Nissan D21, 1988-1989 Nissan D21, 1990-1994 Nissan D21, and 1995 Nissan Pickup applications, including KA24E and VG30E configurations noted in the fitment data. For buyers searching for a Nissan D21 fuel pump, Nissan Pickup fuel pump, or an in-tank replacement for a 12V fuel system, this part number provides a direct service option.

The pump uses a rollervane design and is supplied with a gasket/seal. Autobest states that only top-grade components are used and that each pump is tested during manufacturing to help maintain quality control. The F4043 also uses materials selected for better ethanol tolerance, which is important for vehicles exposed to today’s fuel blends. This part cross-references Airtex Fuel Pumps E8032 and Carter P72128 for the same application.

What It Helps Fix

• Hard starting caused by weak fuel pressure
• Engine hesitation or stalling under load
• Fuel starvation from a failing in-tank pump
• Low or inconsistent fuel delivery to the engine
• Driveability issues tied to worn pump internals

Installation Notes and Tips

Confirm the vehicle’s fuel system configuration before ordering, especially on Nissan D21 and Nissan Pickup models with KA24E or VG30E engines. The fitment notes include applications where a strainer is required to validate the warranty, so the correct strainer should be used during installation. This pump uses a male, threaded 2-terminal connection and does not include a wire harness or regulator.

Verify inlet and outlet orientation, fuel line size, and tank access before installation. Because this is an in-tank pump, clean the tank and inspect related fuel system components at the same time to reduce repeat repairs.

Quality Assurance

Autobest builds this fuel pump with top-quality materials and tests it throughout the manufacturing process. The F4043 is backed by a Limited Lifetime Warranty.