SKU: 50-1235 / UPC: 090127819838
AEM 400 LPH High Flow In-Tank Fuel Pump Kit – Single Barb – Ethanol Compatible
The AEM LPH High Flow In-Tank Fuel Pump is engineered for high-performance naturally aspirated and forced induction EFI vehicles. This pump delivers an impressive 400+ liters per hour (106+ GPH) at 40 PSI while drawing only 12 amps, making it one of the highest-flowing 39mm body pumps available.
It maintains excellent flow under boosted conditions, pushing 330+ LPH at 70 PSI (13.5V) enough to support approximately 870+ horsepower on gasoline. Fully compatible with ethanol (up to E100) and methanol (up to M100), this pump is ideal for high-performance street, track, and race applications. The single barb outlet is designed for 5/16″ ID hose, and the kit includes everything needed for a clean installation.
Key Features
- 400+ LPH Flow Rate – Supports 1000+ horsepower on gasoline at 40 PSI
- High Boost Capability – Maintains 330+ LPH at 70 PSI (supports ~870 HP)
- Ethanol & Methanol Compatible – Safe for E100 and M100 fuels
- Low Amperage Draw – Only 12A at 40 PSI and 15A at 70 PSI
- Compact 39mm Body – Direct replacement for many OEM fuel pumps (same size as Walbro 255)
- Single Barb Outlet – Ideal for 5/16″ ID fuel hose
- Complete Installation Kit – Includes wiring harness, pre-filter, end cap, and rubber buffer sleeve
Specifications
| Detail | Value |
|---|---|
| Part Number | 50-1235 |
| Brand | AEM |
| Type | 400 LPH High Flow In-Tank Fuel Pump Kit |
| Flow Rate | 400+ LPH @ 40 PSI (13.5V) |
| Flow at Boost | 330+ LPH @ 70 PSI (13.5V) |
| Body Diameter | 39mm |
| Inlet Size | 11mm |
| Outlet Type | Single Barb (5/16″ ID Hose Compatible) |
| Fuel Compatibility | Gasoline, E85, E100, M100 |
| Amperage Draw | 12A @ 40 PSI / 15A @ 70 PSI |
| Country of Origin | United States |
| Warranty | AEM Limited Warranty |
Whats Included
- AEM 400 LPH Fuel Pump
- Wiring Harness
- Pre-Filter
- End Cap
- Rubber Buffer Sleeve
- Installation instructions
Product Notes
- Supports 1000+ HP on gasoline at 40 PSI
- Single barb outlet designed for 5/16″ ID fuel hose
- Professional installation recommended
Installation Notes
- Direct replacement for many OEM in-tank fuel pumps
- Estimated time: 1–3 hours (depending on vehicle)
- Professional installation strongly recommended
This Part Fits
| Application | Notes |
|---|---|
| High-Performance Vehicles | Compatible with most EFI vehicles using a 39mm in-tank fuel pump |
| Forced Induction & Modified Engines | Excellent for turbocharged and supercharged applications |
Why Choose AEM High Flow Fuel Pumps?
- Industry-leading flow rates and reliability
- Ethanol and methanol compatible for modern performance builds
- Low amperage draw reduces electrical load on the vehicle
- Proven performance in high-horsepower applications
Frequently Asked Questions
- Q: Will this pump support 1000 HP?
A: Yes, at 40 PSI it flows enough to support 1000+ horsepower on gasoline. - Q: Is this pump ethanol compatible?
A: Yes, it is fully compatible with ethanol blends up to E100. - Q: What size hose does the outlet fit?
A: The single barb outlet is designed for 5/16″ ID fuel hose. - Q: Is professional installation required?
A: Professional installation is strongly recommended for safety and proper fuel system function.
Shipping & Handling
- Method: Ground UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Secure AEM retail packaging
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