Autobest F1257a Fuel Pump Module Assembly

The Autobest F1257A is a complete fuel pump module assembly designed to deliver reliable fuel system performance. This all-in-one assembly replaces the entire fuel delivery system inside your vehicle's gas tank, ensuring consistent fuel pressure and accurate fuel level readings.

Complete Module Assembly Includes:

• Fuel-Resistant Reservoir: Plastic molded body that holds gasoline to ensure fuel availability during all operating conditions, including hard acceleration, cornering, and low fuel levels. Functions as a reserve tank within your gas tank.
• Fuel Strainer: External filter that strains contaminants before fuel enters the module assembly. Some applications include an additional internal strainer (non-serviceable) for enhanced filtration.
• Electric Fuel Pump: High-pressure electric pump that delivers fuel from the tank to the engine at the required pressure for proper combustion.
• Fuel Level Float: Mechanical component attached to the sender unit that rises and falls with fuel level in the tank.
• Sender Unit: Electronic sensor that works with the float to transmit accurate fuel level readings to your vehicle's fuel gauge.
• Expansion Spring: Temperature-compensating spring that keeps the reservoir positioned at the bottom of the tank across varying operating temperatures.

This complete assembly simplifies fuel system repairs by replacing all critical fuel delivery components in one installation, eliminating the need to source individual parts separately.