SKU: 54242003156

AEM High Flow 400LPH Metric Inline Fuel Pump - 044 Style

Sale price$101.22 Regular price$112.47
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Description

AEM High Flow 400LPH Metric Inline Fuel Pump - 044 StyleAEMs 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

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.

Features

  • 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
  • Compatible with Flex Fuel (E85/E90) and all types of gasoline (100% Alcohol fuels may diminish fuel pump life)
  • Kit includes fuel pump, check valve fitting, terminal nuts & boots, instructions

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)

 *Power rating given using gasoline and assuming a base fuel pressure of 43 PSI, 13.5v at the pump, 6.2 lbs/gal with a BSFC of 0.65. Boost fuel pressure is assumed to be the base pressure of 43 PSI + boost pressure. Flow capability for horsepower support is ultimately dependent on fuel hose diameter, and system electrical voltage and amperage capabilities.

Note:
Your vehicle’s factory fuel pump wiring may not be adequate enough to handle the current draw of AEM’s High Flow Fuel Pump. Please refer to the Electrical Requirements section in the instructions document for proper wiring. You can download a copy of the instructions below.

Although AEM’s High Flow Fuel Pumps are the same physical size as many OEM fuel pumps, they may not be appropriate for a specific application. You can consult the Vehicle Search function on our website to see whether a pump is recommended for your vehicle. The Vehicle Search function should be used as a reference only. It is imperative that you check the fuel pump sizing for your vehicle before purchasing an AEM High Flow Fuel Pump.

AEM does not condone or approve of the modification of a tank to accommodate a High Flow Fuel Pump and cannot guarantee the pump’s performance or operation if any modifications are made.performance or operation if any modifications are made.

AEM Instruction Manual & Tech Sheet

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54242003156

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Sarah cumberland
Draper, US
★★★★★ 4
Great snack !!!
Flavor Name: Herb Medley, Size: 1.1 Ounce (Count of 6)
These olives were very convenient snack to grab on the go. They were very fresh and a actually healthy snack that taste great !!!
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Reviewed in the United States on March 7, 2026
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Rachael
Los Angeles, US
★★★★★ 5
Good travel snack
Flavor Name: Herb Medley, Size: 1.1 Ounce (Count of 6)
Got these for trail snack on long hikes. They pack well and taste great.
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Reviewed in the United States on December 9, 2025
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Traveler MB
Chelsea, US
★★★★★ 3
So So
Flavor Name: Herb Medley, Size: 1.1 Ounce (Count of 6)
Tasted ok but not great. Not a repeat customer. I’ll but olives from the market.
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Reviewed in the United States on December 10, 2025
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Wayne Miranda
Massapequa, US
★★★★★ 5
Surprisingly satisfying, gourmet tasting, with a hint of the grill and that smoky flavor
Flavor Name: Herb Medley, Size: 1.1 Ounce (Count of 6)
I have a new favorite snack. I am a pickle-olive-artichoke fan and could never find these snacks in readily available snack packs. Not only have you made one of the only keto friendly snacks, and there are so few, I am so grateful to have stumbled across these little snacks, so delicious, so convenient, so fresh and gourmet tasting with just a hint of smokiness and whatever herb you order. Not only convenient, and different, but taste is amazing as well. I highly recommend any one and/or all of the choices. YUMMY!
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Angela Mayton
Port Orchard, US
★★★★★ 2
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Reviewed in the United States on January 31, 2026

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