Description
The AEM 50-1230 is one of the highest-flow 39mm in-tank fuel pumps available, delivering 400+ LPH @ 40 PSI (13.5V) to support 1,000+ HP on gasoline. Engineered for high-performance naturally aspirated and forced induction EFI vehicles, it maintains strong output under pressure, flowing 330+ LPH @ 70 PSI (13.5V)—sufficient to support around 870 HP on gasoline.
With its compact 39mm body (same size as the Walbro 255), low amperage draw, and robust flow capacity, the 50-1230 is designed to replace many OEM pumps directly. This version features a double barbed 9mm outlet optimized for 3/8-inch ID hose, paired with an 11mm inlet for reliable fuel delivery. Every pump is individually flow-tested to ensure consistent performance.
The AEM 50-1230 is 100% compatible with pump/race gasoline, ethanol up to E100, and methanol up to M100. Its efficient design draws only 12A @ 40 PSI and 15A @ 70 PSI, making it a dependable solution for high-output EFI builds.
Each kit includes a wiring harness, pre-filter, end cap, and rubber buffer sleeve for installation.
Specifications:
| Feature | Specification |
|---|---|
| Flow Rate | 400+ LPH @ 40 PSI; 330+ LPH @ 70 PSI (13.5V) |
| Fuel Type | Gasoline, Ethanol up to E100, Methanol up to M100 |
| Mounting | In-Tank |
| Diameter | 39mm |
| Inlet | 11mm |
| Outlet | 9mm Double Barb (3/8″ ID Hose) |
| Current Draw | 12A @ 40 PSI; 15A @ 70 PSI (13.5V) |
| Part Number | 50-1230 |
| Max HP Support | 1,000+ HP @ 40 PSI; 870 HP @ 70 PSI |
Compatibility Notes:
Ideal for high-output EFI builds requiring 3/8-inch ID hose connections. Compact 39mm size ensures compatibility with a wide range of factory fuel tank setups.
