SKU: 50688249082

AEM 400LPH Inline High Flow Fuel Pump M18X1.5 Inlet and M12X1.5 Outlet

Sale price$92.98 Regular price$103.31
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Ships within 48 hours · Estimated delivery Sep 29 - Oct 4

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Description

AEM 400LPH Inline High Flow Fuel Pump M18X1.5 Inlet and M12X1.5 OutletAEM 400lph Inline High Flow Fuel Pump. 400lph@40psi, 300LPH@120psi. M18x1. 5 Inlet & M12x1. 5 Outlet. Includes Fuel Pump, installation instructions, check valve fitting, wiring terminal ends covers nuts. Included hardware is not application specific AEMs 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

AEM 400lph Inline High Flow Fuel Pump. 400lph@40psi, 300LPH@120psi. M18x1.5 Inlet & M12x1.5 Outlet. Includes Fuel Pump, installation instructions, check valve fitting, wiring terminal ends/covers/nuts. Included hardware is not application specific

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
  • 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

    *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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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: 50688249082

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DZKimmi
Los Angeles, US
★★★★★ 5
Fit perfect, easy to install.
Size: 24" + 19"(Pair for Front Windshield Lock)
Excellent replacement wiper blades. Easy to install, fit my 2023 Honda Civic perfectly.
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Reviewed in the United States on March 27, 2026
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wendell thibodeaux
Waukegan, US
★★★★★ 5
Great
Size: 24" + 19"(Pair for Front Windshield Lock)
Way cheaper than buying local and come in a set work great
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Reviewed in the United States on March 18, 2026
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Brian
Phoenix, US
★★★★★ 5
Seriously good wipers
Size: 24" + 19"(Pair for Front Windshield Lock)
These things are awesome. I'd say they are on par with what comes on the car from factory.
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Reviewed in the United States on April 16, 2026
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Miguel Perez
Lake Worth, US
★★★★★ 5
Limpia l
Size: 24" + 19"(Pair for Front Windshield Lock)
Excelentes en temporada de lluvia me han sido útiles
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Reviewed in the United States on May 25, 2026
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Julie
Birmingham, US
★★★★★ 5
Perfect fit for my 2018 Civic—easy, affordable, and worth it
Size: 9.5" x 10.9" x 2.1"
I’ve bought this cabin air filter multiple times for my 2018 Honda Civic, and it’s consistently great quality. It fits perfectly and is super easy to install—takes just a few minutes to swap out, and I always do it myself. Way cheaper than going to a shop or dealership. The airflow is smooth, there’s no smell at all, and it keeps the inside of my car feeling clean and fresh. No weird odors, no dust blowing in—just a solid, dependable filter that does its job well. This is the only one I’ll keep buying.
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Reviewed in the United States on May 11, 2025

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