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AER 18312

Aeromotive Phantom Series Drop In Fuel Pump | 99-04 GMC Sierra / Chevy Silverado (18312/18313/18314)

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1999-2004 GMC Sierra / Chevrolet Silverado Drop In Fuel Pumps by Aeromotive

The 1999-2004 models used a smaller factory fuel sending unit than the later 2005-2017 models. The smaller size limits the pump configurations that this tank will accommodate. These tanks will accommodate single 340, dual 340, and single 450 pump configurations. Any other combination of pumps will physically not fit through the factory sending unit hole.

The Silverado and Sierra tanks have a tank depth of approximately 14.00”, while the other models are more shallow and have depths around 8.25”. The new system will accommodate both of these tank depths. The 2500 truck models can have a deeper tank up to 17.00”; the system will also accommodate these depths as well.


  • Drop in pump system designed specifically for 1999-2004 GM trucks.
  • Accomodates the smaller factory fuel sending unit and Silverado/Sierra tank depths
  • Available in configurations for a single 340lph pump, dual 340lph pumps, or a single 450lph pump.

Please Note: This system is designed to work in plastic fuel tanks only. Some 1999 models used a steel tank. Please ensure that your vehicle has a plastic fuel tank before ordering.


  • 1999 - 2004 Chevrolet Silverado*
  • 1999 - 2004 GMC Sierra*
  • *Designed to work in plastic fuel tanks only. Some 1999 models used a steel tank.

What's In The Box?

  • 1 - Fuel Pump (or set of fuel pumps)
  • 1 - Fuel Pump Strainer (or set of strainers)
  • 1 - Fuel Pump Hanger Assembly
  • 1 - Fuel Pump Foam Baffle Assembly
  • 1 - Foam Extension Piece
  • Plugs, Fittings, and Hardware



  • Manufacturer Standard Warranty