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AEM- 320 High Flow Fuel Pump

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AEM’s High Flow In-Tank Fuel Pump is designed for high performance naturally aspirated and forced induction EFI vehicles. It delivers reliable performance and high volumes of fuel flow for roughly half the cost of comparable performance fuel pumps.

The AEM High Flow In-Tank Fuel Pump (PN 50-1000) flows 320 lph (84 gph) at 43 PSI and is capable of supporting over 1,000 HP at 43 PSI.* Click on the flow curves and current draw vs. fuel pressure graphs below for more information.

AEM High Flow In-Tank Fuel Pump Features:

  • Designed for high output naturally aspirated and forced induction EFI vehicles
  • In-Tank design
  • Tested to flow 320 lph @ 43 PSI
  • 39mm diameter fits most applications
  • Offset inlet design eases installation
  • Each pump individually tested
  • For gasoline vehicles (pump life may be diminished when used with E85 fuel)
  • Kit includes fuel pump, rubber sleeve and end caps, pre filter, hose, clamps and flying lead



Weight: 10.1oz (285grams)

Outside Diameter: 39mm OD

External Materials: Black plated steel with laser etching

Inlet Fitting: 7.7mm ID, 11.0mm OD

Outlet Fitting: 8 mm hose clamp

PRV Activation: 90 PSI

Impeller Design: Single Scroll Hard Anodized Aluminum Turbine


Connector Terminal: 6 mm Spade (pos/neg)

Min Voltage Input: 6 volts

Max Voltage Input: 18 volts

Current Draw (40 psi): 12 amps (13.5v)

Current Draw (80 psi): 15 amps (13.5v)

* Power rating given at 43 PSI, 13.5v at the pump with a BSFC of .5. Flow capability for horsepower support is ultimately dependent on fuel hose diameter, and system electrical voltage and amperage capabilities.

3 Reviews

  • 5
    aem fuel pump

    Posted by nick on 16th Jan 2017

    Required a little modification. Pretty easy install on my 99 cobra.

  • 5
    Works Excellent! And the pricing is superb!

    Posted by Stephen Martindale on 16th Feb 2016

    I installed this pump on my 2003 maxima, only took 40 mins, a slight amount of trimming was needed to make this fit but once everything fit, the car fired up on the first try! The harness was plug and play as well!

  • 5
    Works verry good best price around!!!

    Posted by sorn on 18th Nov 2013

    I used this pump for my 2003 mustang GT with a vortech supercharger. Install is pretty easy all you have to do is trim a little bit off the fuel basket top and splice a few wires.