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AEM Electronics 400LPH Metric Inline High Flow Fuel Pump
$169.95
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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.

View Installation Guide Here

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
  • 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
Notes:
  • 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.
  • 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.
  • 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.
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AEM Electronics - Leading Performance Parts for Your VehicleAEM Electronics: Revolutionizing Automotive Performance
History of AEM Electronics

AEM Electronics has been a pioneer in the automotive performance industry since its inception in 1987. Founded by a group of automotive enthusiasts, AEM quickly gained recognition for its innovative approach to performance parts. The brand initially focused on air intake systems, but as the demand for high-quality performance components grew, AEM expanded its product offerings to include a wide range of electronic tuning solutions, fuel management systems, and exhaust systems. Over the years, AEM has established itself as a trusted name among car enthusiasts and professional racers alike.

Categories of Parts Offered by AEM Electronics

AEM Electronics specializes in a variety of performance parts designed to enhance your vehicle's power, efficiency, and overall driving experience. Their product categories include:

  • Cold Air Intakes: AEM's cold air intake systems are engineered to increase airflow and improve engine performance, giving your vehicle the power boost it craves.
  • ECU Tuning: AEM offers advanced engine management systems that allow for precise tuning, ensuring your vehicle runs at its optimal performance.
  • Fuel Management: With AEM's fuel delivery systems, you can achieve the perfect air-fuel ratio for maximum efficiency and power.
  • Exhaust Systems: AEM's exhaust solutions are designed to reduce back pressure and enhance exhaust flow, resulting in improved horsepower and torque.
Why AEM Electronics Stands Out

What sets AEM Electronics apart from other brands in the automotive performance industry is their unwavering commitment to quality and innovation. Each product is meticulously engineered and tested to ensure it meets the highest standards of performance and reliability. AEM's dedication to customer satisfaction is evident in their extensive research and development efforts, which continually push the boundaries of automotive technology. Furthermore, AEM's products are backed by a solid warranty and exceptional customer support, making them the go-to choice for car enthusiasts looking to elevate their vehicle's performance.

In conclusion, AEM Electronics is not just a brand; it's a legacy of performance and innovation. Whether you're a weekend warrior or a professional racer, AEM offers the parts you need to take your vehicle to the next level.

AEM Performance Electronics warrants to the consumer that all AEM Electronics products will be free from defects in material and workmanship for a period of twelve months from the date of the original purchase. Products that fail within this 12-month warranty period will be repaired or replaced when determined by us that the product failed due to defects in material or workmanship. This warranty is limited to the repair or replacement of the AEM Electronics part. This warranty applies only to the original purchaser of the product and is non-transferable. All implied warranties shall be limited in duration to the said 12-month warranty period. Improper use or installation, accident, abuse, unauthorized repairs or alterations performed by the user on any AEM Electronics products voids this warranty.

In no event shall this warranty exceed the original purchase price of the AEM Electronics part nor shall AEM Electronics be responsible for special, incidental or consequential damages or cost incurred due to the failure of this product. AEM Electronics disclaims any liability for consequential damages due to breach of any written or implied warranty on all of its products.

Warranty returns will only be accepted by AEM Electronics when accompanied by a valid Return Merchandise Authorization (RMA) number and a dated proof of purchase. The product must be received by AEM Electronics within 30 days of the date the RMA is issued. Warranty claims to AEM Electronics must be shipped to us prepaid (we recommend a shipping service with package tracking capability). Once your package is received by our warranty and repairs department you will be notified and provided with updates.

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