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AEM Electronics

AEM Electronics 400LPH Metric Inline High Flow Fuel Pump

AEM Electronics 400LPH Metric Inline High Flow Fuel Pump

Regular price $148.46 USD
Regular price $184.00 USD Sale price $148.46 USD
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AEM Electronics 400LPH Metric Inline High Flow Fuel Pump


SKU: 50-1009

AEM's 400lph Metric High Flow, high pressure Inline Fuel Pump (PN 50-1009) is the perfect direct replacement upgrade for 044 pump users who want more fuel flow for their high performance vehicle!

The 400lph Metric High-Flow Inline Fuel Pump has an M18x1.5 female inlet and M12x1.5 male outlet. It utilizes the industry standard ?044 Style? envelope. It is capable of supporting over 1,200 HP normally aspirated and a whopping 860 HP at 30 psi boost!* It flows 400lph (105 gph) at 40 PSI, 340 lph (90 gph) at 73 PSI, and 270 lph (71 gph) at 120 PSI. Complete flow curves from 35 to 120 PSI and current draw vs. fuel pressure charts are available on the Specs tab.

The AEM 400lph Metric High Flow Fuel Pump is rated for use with ethanol-blended fuels, (E85/E90) and all types of gasoline, but pump life will be diminished if used with 100% ethanol fuels.


  • Designed for high output naturally aspirated and forced induction EFI vehicles
  • Popular ?044 Style? physical configuration with metric fittings for direct replacement of 044 pumps!
  • Maintains very high flow even at boosted fuel pressures; 340 lph @ 73 PSI (30 psi boost)
  • Each pump individually tested to flow minimum of 400lph (105gph) @ 40 PSI
  • For gasoline vehicles (pump life will be diminished when used with alcohol fuels)
  • Kit includes fuel pump, check valve fitting, terminal nuts & boots, instructions
  • Compatible with Flex Fuel (E85/E90) and all types of gasoline

Technical Specs:

  • Weight: 35.8oz (1015 grams)
  • Outside Diameter: 60mm OD
  • External Materials: Black plated steel with laser etching
  • Inlet Fitting: M18x1.5 female
  • Outlet Fitting: M12x1.5 male
  • PRV Activation: 150 PSI
  • Impeller Design: Roller vane with ceramic end plate

Voltage Specs:

  • Connector Terminal: 6mm stud positive, 5mm stud negative
  • Min Voltage Input: 10 volts
  • Max Voltage Input: 18 volts
  • Current Draw (40 psi): 9.73 amps no check valve, 10.68 amps with check valve (13.5v)
  • Current Draw (120 psi): 16.07 amps no check valve, 17.13 amps with check valve (13.5v)
  • Fuse: 25 amps (13.5v), 30 amps (13.5v) MAx


Product image for illustration purposes only. Actual product may vary.

NOTE: Sezzle Takes 2-3 Days to Process Your Order.

If your vehicle or part is not listed please call us or email us and we will shoot a quote right over to you 1(732)-329-7511 (No texts, please)

TEXT US FOR A QUOTE HERE: 1-347-833-7483


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