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AEM - 400LPH (Metric) Inline High Flow Fuel Pump - 50-1009

AEM
AEM50-1009
Out of stock
Fuel Pump
$213.95
M18x1.5 Inlet - M12x1.5 Outlet Overview The 400lph Metric High-Flow Inline Fuel Pump has an M18X1.5...

AEM - 400LPH (Metric) Inline High Flow Fuel Pump - 50-1009

M18x1.5 Inlet - M12x1.5 Outlet

Overview

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.

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 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.

Features:

  • Designed for high output naturally aspirated and forced induction EFI vehicles
  • 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)
  • Installs externally or in-tank
  • Each pump individually tested to flow minimum of 400LPH (100gph) @ 40 PSI
  • Compatible with Flex Fuel (E85/E90) and all types of gasoline (100% Alcohol fuels may diminish fuel pump life)

Specs:

  • Application: Universal
  • Brand: AEM
  • Category: Air and Fuel Delivery
  • Emission Code: 5
  • Free Flow GPH: 100
  • Free Flow LPH: 400
  • Fuel System: Carbureted, EFI
  • Fuel Type: E85, Gasoline
  • Material: Steel
  • Product Type: Fuel Pump
  • Pump Body Color: Black
  • Sub Category: Fuel Pumps and Related Components
  • Warranty: Manufacturer's 1 Year Warranty
  • UPC: 840879025892
  • Part Number: 50-1009

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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Shipping

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All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.

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If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.

Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

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