Description
The genuine AEM 400LPH High-Flow Inline Fuel Pump is designed for high-performance naturally aspirated and forced-induction EFI vehicles. It delivers reliable, high-volume fuel flow for modified, turbocharged and racing engines.
This powerful pump flows:
- 400 LPH at 40 PSI
- 340 LPH at 73 PSI
- 270 LPH at 120 PSI
According to AEM, it can support over 1,200 HP on naturally aspirated engines and up to 860 HP at 30 PSI boost, depending on the fuel system, wiring, voltage and engine setup.
Product specifications:
- Brand: AEM Performance Electronics
- Part number: 50-1009
- Type: High-flow inline fuel pump
- Configuration: 044-style
- Inlet: M18 × 1.5 female
- Outlet: M12 × 1.5 male
- Voltage: 12V system
- Fuel compatibility: Petrol and E85/E90
- Application: Universal
- Body material: Black-plated steel
- Suitable for naturally aspirated and turbocharged engines
- Installation by a qualified professional is recommended
Vehicle compatibility and fuel-system requirements must be checked before purchase. A suitable relay, fuse, wiring, fuel lines and pressure regulator may be required.


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