ACDelco MU1321 GM Original Equipment Fuel Pump, Level Sensor, and Sending Unit Module Designed with guide rods to retain proper alignment while reducing pinching Include a reservoir and jet pump to prevent fuel pump starvation when the fuel level is low Most strainers are placed inside the module to help reduce the chance of puncture Acetyl plastic for good high-alcohol fuel tolerance Electrical connections are designed to help eliminate high resistance due to vehicle vibration GM-recommended replacement part for your GM vehicles original factory component Offering the quality, reliability, and durability of GM OE Manufactured to GM OE specification for fit, form, and function