ACDelco FLS1077 GM Original Equipment Fuel Pump Level Sensor and Sending Unit Module

The ACDelco FLS1077 is a GM Original Equipment Fuel Pump, Level Sensor, and Sending Unit Module — an all-in-one in-tank assembly designed as a direct replacement for your GM vehicle's original component. As a genuine OE part, it is designed, engineered, tested, and backed by General Motors to deliver the precise fit, form, and function of the factory-installed unit.

This module integrates three critical fuel system functions into a single assembly. The electric fuel pump pressurizes the fuel system and delivers a steady, reliable supply of fuel to the engine's fuel injectors. The integrated fuel level sender uses a float that rides on the surface of the fuel, with a sensing resistor that transmits accurate feedback data to the fuel gauge on the instrument cluster. Together, these components ensure consistent engine performance and accurate fuel level monitoring.

Key Features:

• GM Original Equipment — manufactured to OE specifications for guaranteed fit and function
• Integrated assembly — combines fuel pump, fuel level sensor, and sending unit in one module
• In-tank design — submerged installation keeps the pump cool and primed for reliable operation
• Consistent fuel pressure — delivers a steady, reliable fuel supply to the engine's fuel injectors
• Accurate fuel level sensing — float-and-resistor sender provides precise feedback to the fuel gauge
• Designed, engineered, and tested by General Motors — meets rigorous GM quality standards
• Direct OE replacement — no modification required for installation on compatible GM vehicles

The ACDelco FLS1077 is the recommended replacement for GM vehicles originally equipped with this module, restoring factory-level fuel system performance and fuel gauge accuracy.