The best pump depends on whether your system needs genuinely low fuel pressure or an in-tank EFI pump that operates at higher pressure. The SOLLON and Megaflint pumps provide low-pressure output but are inline designs, not in-tank units. For in-tank installations, the EVIL ENERGY and Achilioson pumps are performance options, while the A-Premium assembly is listed for specific Kia Soul model years. Confirm your vehicle fitment and required pressure before choosing.
| Product | Best for | Pressure or fitment note |
|---|---|---|
| EVIL ENERGY EFI 255LPH | In-tank EFI replacement or upgrade | 15–90 PSI operating range |
| A-Premium Module Assembly | Specified Kia Soul applications | 2014–2015 Kia Soul |
| Achilioson 340LPH | Compatible high-flow EFI setups | Verify 39 mm pump layout |
| SOLLON 12V Inline Pump | Low-pressure carbureted systems | 2.5–4 PSI; inline, not in-tank |
| Megaflint 12V Inline Pump | Low-pressure engines needing more output | 5–9 PSI; inline, not in-tank |
EVIL ENERGY EFI 255LPH In-Tank Pump
This pump is designed for 12-volt EFI systems and is rated at 255 liters per hour at 43 PSI and 190 liters per hour at 80 PSI. Its stated operating pressure is 15–90 PSI, with final fuel pressure set by the regulator. That makes it an in-tank EFI option, not a low-pressure carburetor pump.
Best for: Buyers replacing or upgrading a compatible EFI pump who need the listed flow and pressure range. It was selected because it is explicitly designed for in-tank EFI use. The caution is important: the pump is specified for gasoline only, and high-impurity fuel may reduce lifespan and performance. Avoid it if your system requires only a few PSI.
A-Premium Kia Soul Pump Module
This is a fuel pump module assembly with a pressure sensor, listed for the 2014–2015 Kia Soul. The supplied reference numbers include 31110-B2500, 31110B2500, FG1898, and SP3303M. The package contains one boxed pump assembly.
Best for: Owners of the listed Kia Soul years seeking a vehicle-specific module rather than a universal pump. It is included because its assembly format is relevant to an in-tank replacement. The listed details do not state its output pressure or flow rate, so verify the required specification and reference number before ordering. Do not assume it suits another vehicle based on appearance alone.
Achilioson 340LPH High-Flow Pump
This universal-style in-tank EFI pump is rated at 340 liters per hour and is designed for compatible 39 mm pump bodies with a GSS340-style center inlet. The manufacturer describes it as a higher-flow performance upgrade, not an identical-spec replacement for a 255LPH GSS340-style pump.
Best for: Builders increasing fuel capacity in a compatible modified EFI system. It was selected because it is an in-tank unit with a clearly stated high-flow rating. Fitment requires careful measurement: compare pump diameter, dimensions, inlet and outlet positions, connector, strainer orientation, hanger clearance, and mounting method. Actual flow varies with system conditions, so a 340LPH rating alone does not establish suitability for every engine.
SOLLON 2.5–4 PSI Inline Pump
The SOLLON is a 12-volt inline pump with a stated 2.5–4 PSI output, 30 GPH flow, and 8 mm (5/16-inch) hose size. Its listed uses include carbureted vehicles, lawn mowers, generators, boats, and other 12-volt applications. A built-in check valve is described as helping prevent backflow.
Best for: Buyers whose priority is low-pressure fuel delivery for a carbureted or small-engine setup. It was selected for its low stated pressure, but it is not an in-tank pump. Choose it only if an inline installation and its pressure range suit the system; it is not a direct substitute for an EFI in-tank pump.
Megaflint 5–9 PSI Inline Pump
This 12-volt inline pump is listed at 5–9 PSI and 30 GPH, with a 5/16-inch connection. The product information also states up to 12 inches of suction lift and describes it for applications such as vintage cars, boats, trucks, and generators.
Best for: Low-pressure setups that need a higher stated pressure range than the SOLLON offers. It was selected as a comparison option for carbureted and other low-pressure applications. It is not an in-tank unit, and its 5–9 PSI range may be unsuitable for systems requiring lower pressure. Check the engine or regulator requirements before installation.
Buying Guide: How to Choose a Low-Pressure Fuel Pump
Does the pump need to sit inside the tank?
Check the required mounting location before comparing flow figures. An in-tank pump is installed in the tank or its assembly; the SOLLON and Megaflint products listed here are inline pumps. If your vehicle needs a complete module, confirm the exact application and reference numbers, as with the A-Premium Kia Soul assembly.
What pressure does the engine require?
Match the pump’s stated pressure to the engine and fuel-system design. The SOLLON is listed at 2.5–4 PSI, while the Megaflint is listed at 5–9 PSI. The EVIL ENERGY pump is designed for EFI and lists a 15–90 PSI operating range. These are not interchangeable pressure categories.
Should you prioritize flow or fitment?
For a replacement, physical fitment and vehicle application come first. For a modified EFI setup, compare required flow at operating pressure, not just the headline flow rating. Wiring, voltage, hose size, filters, and regulator settings can affect delivered flow. A high-flow pump is not automatically the right choice for a stock or low-pressure system.
What should you verify before ordering?
Check voltage, fuel type, connector, inlet and outlet layout, pump dimensions, mounting method, required pressure, and whether the product is a complete module or pump-only unit. For universal in-tank pumps, compare the original pump and hanger carefully. Confirm that the fuel type is supported; the EVIL ENERGY listing specifies gasoline only.
Frequently Asked Questions
Is an in-tank fuel pump the same as an inline pump?
No. An in-tank pump mounts inside the fuel tank or module, while an inline pump mounts along the fuel line. The SOLLON and Megaflint models here are inline designs.
Can a low-pressure pump run an EFI engine?
Only if its pressure and flow meet the engine’s fuel-system requirements. The listed 2.5–9 PSI pumps are low-pressure options, while the EVIL ENERGY pump is specified for EFI operation at a higher pressure range.
Which listed pump has the lowest stated pressure?
The SOLLON has the lowest stated output pressure at 2.5–4 PSI. It is an inline pump, not an in-tank pump.
Is the 340LPH pump a direct replacement for every GSS340-style pump?
No. It requires a compatible 39 mm body and center-inlet layout, and the listing describes it as a performance upgrade. Verify the complete physical fit before ordering.