AEM 400LPH High Pressure Inline Fuel Pump – M18x1.5 Female Inlet to M12x1.5 Male Outlet — 50-1009

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

The AEM X-Series Wideband Gauge and X-Series Inline Controller support the 4.9LSU sensor and offer both factory calibration resistor and free-air calibration methods. Factory calibration provides precise calibration when the sensor is new, while free-air calibration can help correct sensor drift as it ages. AEM Wideband UEGO (Universal Exhaust Gas Oxygen) Controllers accurately monitor engine Air/Fuel Ratio (AFR), providing critical data for tuning. Running rich can reduce power, while running too lean may cause engine damage, making accurate AFR monitoring important for optimizing power and efficiency. The UEGO sensor connector should not be modified because it contains a calibrated resistor specifically matched to the sensor; modification will invalidate the sensor output. Independent testing by 360° Product Testing against 17 competitor wideband UEGO controllers found the AEM X-Series Inline and X-Series Wideband UEGO AFR Gauge with 4.9LSU sensors recorded the fastest response times. Wideband UEGO sensors are wear items and can be affected by leaded fuels, automotive fluids, particulates, mechanical or thermal shock, and unheated exposure to exhaust. Free-air calibration may correct sensor drift, but sensor replacement as part of regular vehicle maintenance is recommended; follow the instruction manual when calibrating. AFR ranges include Gasoline 8.5:1-18.0:1 via 0-5V and 8.0:1-20.0:1 via CANbus; Lambda .58-1.23 via 0-5V and .55-2.00 via CANbus; E85 5.7:1-12.0:1; Ethanol 5.2:1-11.0:1; and Methanol 3.75:1-8.0:1.

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.

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.

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.

The AEM 400LPH AN Fittings 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.

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

AEM 400LPH (Metric) Inline High Flow Fuel Pump

400lph Inline Hi Flow Fuel Pump

M18x1.5 Inlet – M12x1.5 Outlet

Installs externally or in-tank

FP KIT 400 LPH HF PUMP METRIC

AEM – Inline Hi Flow Fuel

Inline Hi Flow Fuel

Electric Fuel Pump

400LPH (Metric

AEMEFUELPUMP

Product resources

• User 1
• Installation Instructions