ACDelco M100121 GM OE Fuel Pump Module Assembly Without Fuel Level Sensor

The ACDelco M100121 is a GM Original Equipment fuel pump module assembly designed without a fuel level sensor. This in-tank, gerotor-style electric fuel pump module delivers a steady, reliable fuel supply directly to your vehicle's fuel injectors, engineered to match the fit, form, and function of the original factory component it replaces.

As a true GM OE part, the M100121 is manufactured to the same rigorous design and quality standards as the pump originally installed during GM vehicle production. The OEM part number cross-reference for this assembly is 13589708.

Key Features:

• GM Original Equipment — engineered and tested to OE specifications for reliable, long-term performance
• Gerotor pump design — optimized for consistent fuel flow and reduced operating noise
• In-tank mounting — installs inside the fuel tank for direct, efficient fuel delivery
• No fuel level sensor included — module assembly without sending unit; retains your existing sensor
• Electrical connections engineered to minimize high resistance caused by vehicle vibration
• Outlet connection: 0.25-inch hose barb; inlet connection type: hose barb
• Operating voltage: 12V DC
• Compatible fuel type: Gasoline
• OEM cross-reference: 13589708

The ACDelco M100121 fuel pump module is sold individually and is a direct-replacement solution for GM vehicles requiring a pump module without an integrated fuel level sensor.