Autobest F2644A Fuel Pump and Sender Assembly

Fuel delivery assembly overview

The Autobest F2644A is an in-tank fuel pump and sender assembly for classic Chevrolet and GMC truck and SUV applications. It combines fuel delivery and fuel level sending functions in one unit for direct replacement service on supported vehicles.

Key features

• In-tank turbine pump design with 12V operation
• Average flow rating of 25 GPH and minimum pump pressure of 14.5 PSI
• Fuel sending unit, strainer, and NBR seal included
• Female connector with rectangular shape and PIN terminals
• Performance-grade assembly with ethanol-tolerant materials
• Limited lifetime warranty

Detailed description

Autobest F2644A is built as a fuel pump and sender assembly for Chevrolet Blazer, GMC Jimmy, and related Chevrolet and GMC truck platforms from 1987-1991. The unit uses a turbine-style pump, external strainer, and a fuel level sender to restore fuel delivery and tank level reporting in one service part. The F2644A is specified with a 25 GPH average flow rating, 14.5 PSI minimum pump pressure, and a 12V electrical design for supported applications. This part cross-references Delphi HP10026 and Spectra Premium SP12L1H for the same application.

Common issues this part can address

• Hard starting caused by weak fuel delivery
• Inaccurate fuel gauge readings from a worn sender
• Fuel starvation under load from a failing pump
• Noise or inconsistent operation from an aging in-tank unit
• Seal leakage at the tank opening

Installation notes and tips

Verify fitment by year, make, model, and tank configuration before ordering. This assembly uses a female connector with two PIN terminals and does not include mounting hardware or a wire harness. Replace the tank seal during service and confirm the outlet and inlet connections match the original setup on the vehicle.

Quality assurance

Autobest states that this assembly is made with quality materials and is tested at multiple points during manufacturing for durability and reliability. The product is backed by a limited lifetime warranty.