AEM 400LPH High Pressure Inline Fuel Pump - M18x1.5 Female Inlet to M12x1.5 Male Outlet

AEM's 400LPH High Flow, High-Pressure Fuel Pump (AEM 50-1005) is capable of supporting over 1,200 HP normally aspirated and a whopping 860 HP at 30 psi boost!* It flows 400LPH (100 gph) at 40 PSI, 340LPH (90 gph) at 73 PSI, and 270LPH (71 gph) at 120 PSI. Complete flow curves from 35 to 120 PSI and current draw vs. fuel pressure charts are available in the Specs tab.
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.
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.

• Compatible with Flex Fuel (E85/E90) and all types of gasoline (100% Alcohol fuels may diminish fuel pump life)


• Popular "044 Style" physical configuration but with AN inlet & discharge port connections


• Maintains very high flow even at boosted fuel pressures; 340LPH @ 73 PSI (30 psi boost)


• Designed for high output naturally aspirated and forced induction EFI vehicles


• Each pump individually tested to flow minimum of 400LPH (100gph) @ 40 PSI


• Installs externally or in-tank