Best Inline Electric Fuel Pump for Carbureted and EFI Setups

#1 · Best Overall

1. Megaflint E8012S

• Material: Zinc
• Compatible with Vehicle Type: Car, Truck
• Outlet Connection Size: 0.31 in
• Inlet Connection Size: 0.31 in

Best for: Low-pressure carburetor replacement.

Why it ranks #1: Its 5–9 PSI output, 30 GPH flow, and 5/16-inch connections suit many low-pressure carbureted setups; it is also listed for booster or independent use.

A 5–9 PSI output paired with 30 GPH flow gives this 12V Megaflint pump a defined low-pressure option for carbureted vehicles and equipment. Its 5/16-inch connections suit that hose size, while the listed 12-inch suction capability supports priming when the installation needs fuel drawn from the tank.

The zinc body and leak-resistant design address durability and sealing, while the stated 5–9 PSI range helps match the pump to low-pressure applications such as vintage cars, boats, trucks, and generators. A 30 GPH flow rate supplies a concrete capacity reference, and 12-inch suction capability supports priming in installations where the pump must draw fuel. The maker also identifies booster, standby, or independent-pump use, giving buyers several possible roles without changing the pump’s stated pressure range.

Skip it if you need high-pressure EFI delivery; the Holley 12-170 lists support for EFI applications and up to 900 naturally aspirated EFI horsepower.

This suits buyers replacing or adding a low-pressure pump for a carbureted car, truck, boat, or generator. Check that the 5/16-inch connections and 5–9 PSI output match the intended fuel system before choosing it.

Listed on Amazon as: Inline Fuel Pump 12V Universal Electric Fuel Pump Low Pressure 5-9 PSI For Gas Diesel E8012S 1-2A | 30GPH | 5/16Inch

#2 · Best Install Kit

2. ENGINEMAN Super 12S Plus

• Material: Copper
• Compatible with Vehicle Type: ATV, Car, Motorcycle, RV, Truck
• Outlet Connection Size: 0.31 in
• Inlet Connection Size: 7.94 millimeters

Best for: High-RPM carburetor builds.

Why it ranks #2: This 5–9 PSI pump lists 130 L/H flow and includes a mounting bracket, fuel filter, and 5/16-inch flex hose for carbureted applications.

Pressure-stabilization technology paired with a stated 130 L/H flow rate gives the ENGINEMAN Super 12S Plus a defined role in high-RPM carbureted engines. Its 5–9 PSI range targets most listed 4-, 6-, and 8-cylinder carburetor applications, with a mounting bracket, fuel filter, and 5/16-inch flex line included.

The 5–9 PSI range and 130 L/H flow figure give buyers specific pressure and flow references for a carbureted setup, while the stated pressure stabilization addresses delivery during acceleration. ENGINEMAN lists compatibility with most 4-, 6-, and 8-cylinder carburetor applications, not a universal fit for every fuel system. The included bracket, filter, and 5/16-inch flex line can simplify gathering installation components, and the 0.31-inch outlet provides a connection-size reference.

Skip it if you need a pump specified for high-pressure EFI; the Holley 12-170 lists EFI support and 100 GPH flow.

This fits owners of high-RPM carbureted muscle or performance vehicles within the listed 4-, 6-, or 8-cylinder applications. Check the 5–9 PSI range and included 5/16-inch line against the intended setup.

Listed on Amazon as: Universal 12 Volt Electric Fuel Pump 5-9 PSI, 35GPH, Super 12S Plus for Gasoline Diesel Engines

#3 · Highest Low-Pressure Flow

3. TREXFLOW TF-12-801

• Compatible with Vehicle Type: Car, Truck

Best for: High-flow carbureted builds.

Why it ranks #3: For low-pressure carbureted builds, it lists 90 GPH at 4 PSI and 107 GPH free flow, plus pre- and post-filters and a one-year warranty.

A stated 90 GPH at 4 PSI gives the TREXFLOW TF-12-801 a higher-flow focus for hot-rod, street, and strip applications. Its 4–7 PSI operating range and rotary-vane inline design suit buyers seeking substantial flow at carburetor-level pressure rather than a high-pressure EFI pump.

The 107 GPH free-flow figure and 90 GPH at 4 PSI provide two useful capacity references for a carbureted build; the 4–7 PSI range keeps the intended pressure context clear. A metal rotor housing is specified instead of plastic, while the supplied pre-filter and post-filter support a filtered installation workflow. The maker recommends mounting low near the tank for gravity-fed flow and placing the post-filter high near the carburetor for circulation and heat dissipation.

Skip it if you need a 5–9 PSI pump with a listed pressure-stabilization feature; the ENGINEMAN Super 12S Plus specifies that range.

This is for carbureted hot-rod, street, or strip builds needing the stated high flow at 4–7 PSI. Plan the low, near-tank pump position and the recommended post-filter placement near the carburetor.

Listed on Amazon as: Inline Electric Fuel Pump 12V 4-7 Psi fuel pump Higher Flow than 12-801-1 for Hot Rod Street Strip application

#4 · Best High-Output EFI

4. Holley 12-170

• Material: Plastic
• Compatible with Vehicle Type: Various Vehicles and Equipment
• Outlet Connection Size: 0.38 in
• Inlet Connection Size: 0.5 in

Best for: High-output EFI installations.

Why it ranks #4: Its 100 GPH roller-vane design is listed to support up to 900 EFI naturally aspirated or 700 EFI boosted horsepower, with E85/E90 compatibility.

Support for up to 900 naturally aspirated EFI horsepower sets the Holley 12-170 apart for high-output builds. Its 100 GPH roller-vane pump also serves boosted EFI and carbureted applications, with PWM compatibility and connections specified as -8 AN female ORB inlet and -6 AN female discharge.

The 100 GPH rating and roller-vane design are paired with stated support for up to 900 naturally aspirated EFI horsepower or 700 boosted EFI horsepower, helping buyers assess its intended output range. PWM compatibility adds an explicitly listed control-system fit, while the -8 AN female ORB inlet and -6 AN female outlet define the plumbing interfaces for installation or replacement. Flex-fuel compatibility includes E85 and E90; the supplied facts caution that 100% alcohol fuels may diminish pump life.

Skip it if you run 100% alcohol fuel; the EVIL ENERGY KT04026-AMZ1 lists gasoline, race gas, and diesel compatibility instead.

This suits high-output EFI buyers, including naturally aspirated or boosted builds, and also lists carbureted use. Plan around its AN port sizes and avoid treating compatibility with E85 or E90 as approval for 100% alcohol fuel.

Listed on Amazon as: Holley 12-170 100 GPH Universal In-line Electric Fuel Pump

#5 · Best Included Wiring

5. JDMSPEED JDM-E012

• Material: Metal
• Compatible with Vehicle Type: ['ATV', 'Motorcycle']
• Outlet Connection Size: 0.31 in
• Inlet Connection Size: 0.32 in

Best for: Low-pressure small-engine service.

Why it ranks #5: This 3–6 PSI pump lists flow above 70 L/H and includes socket wire, making it a useful low-pressure option for carburetors and small engines.

A 3–6 PSI output and stated flow above 70 L/H make the JDMSPEED kit a low-pressure option for carburetors and small engines. The 12V package includes a socket wire, giving buyers a supplied electrical connection component alongside the aluminum-bodied pump.

The 3–6 PSI range and flow above 70 L/H point to low-pressure fuel-transfer and carburetor uses rather than high-pressure injection. Its 0.315-inch tubing interface and 2.638-inch installation-hole distance provide concrete dimensions for planning hose and mounting placement. The included socket wire supports the electrical hookup workflow, while the metal pump body is specified as aluminum. Listed uses include gasoline or diesel engines, with vehicle compatibility naming ATVs and motorcycles.

Skip it if you need high-pressure EFI output; the EVIL ENERGY KT04026-AMZ1 lists operation at 75 PSI.

This suits a buyer replacing a low-pressure pump on a carbureted lawn mower, ATV, motorcycle, or similar 12V application. Check the 0.315-inch tubing interface and mounting-hole spacing against the planned installation.

Listed on Amazon as: Universal Electric Fuel Pump Kit 12v 3-6 PSI Low Pressure Replacement For Carburetor Lawn Mower Gas Diesel Fuel Transfer Pump

#6

6. INPOST E8090

• Material: Metal
• Compatible with Vehicle Type: Truck
• Outlet Connection Size: 0.38 in
• Inlet Connection Size: 0.38 in

Best for: 3/8-inch line replacement.

Why it ranks #6: Its 5–9 PSI and 30 GPH listing suits low-pressure replacement needs, while the 3/8-inch inlet and outlet distinguish it from smaller-hose options.

Its 3/8-inch inlet and outlet connections distinguish the INPOST E8090 for installations already using that line size. The inline electric pump is specified at 5–9 PSI and 30 GPH, giving truck owners a clearly stated low-pressure replacement option without relying on smaller hose connections.

The listed 5–9 PSI range identifies the pump as a low-pressure choice, while its 30 GPH rating supplies a stated flow reference for comparing it with an existing setup. Both ports measure 0.38 inches, so the connection size can suit a 3/8-inch line arrangement. INPOST describes it as an OEM/replacement service part, making that role explicit; the supplied compatibility listing names trucks, so buyers should keep that stated application in view.

Skip it if you need a pump explicitly listed for cars and generators; the Megaflint E8012S names both alongside trucks.

Choose this for a truck installation needing an inline electric pump with 3/8-inch ports and a 5–9 PSI range. Its compactly stated application details are limited, so match pressure, flow, and line size to your specific setup.

Listed on Amazon as: INPOST E8090 ELECTRIC FUEL PUMP IN LINE 5psi-9psi 3/8 Line 30gph UNIVERSAL

#7

7. SOLLON HEP-02A

• Material: Brass
• Compatible with Vehicle Type: Lawn Mower
• Outlet Connection Size: 0.35 in
• Inlet Connection Size: 0.32 in

Best for: Compact low-pressure transfer.

Why it ranks #7: The 2.5–4 PSI, 30 GPH specification fits low-pressure transfer and carburetor uses; its listing also identifies a built-in check valve.

A built-in check valve to prevent backflow distinguishes the SOLLON pump within its 2.5–4 PSI, 30 GPH low-pressure specification. Its 12V operation and 8 mm, or 5/16-inch, hose size suit listed carburetor, lawn mower, boat, generator, ATV, and other small-engine applications.

The 2.5–4 PSI output and 30 GPH flow identify a low-pressure transfer role, while the check valve is specified to prevent fuel flowing backward. Its plunger-type fuel supply and stronger suction are stated performance features; the compact 5.24-by-3.9-by-2.91-inch dimensions can help buyers plan space for an inline installation. The listed 8 mm (5/16-inch) hose size gives a practical connection reference across its stated 12V applications.

Skip it if you need a high-pressure EFI pump; the CarBole 10103174-P lists flow at 43 and 75 PSI.

This suits buyers needing a compact 12V low-pressure pump for a carburetor, mower, boat, generator, or listed small vehicle. Match the 8 mm hose size and 2.5–4 PSI range to the installation.

Listed on Amazon as: Electric Fuel Pump 12V Universal Low Pressure 12 Volt Transfer Inline Fuel Pump for Lawn Mower Carburetor Gas Diesel Engine 2.5-4psi HEP-02A

#8

8. EVIL ENERGY 300 LPH

• Material: Metal
• Compatible with Vehicle Type: Car, Truck
• Outlet Connection Size: 6 millimeters
• Inlet Connection Size: 10 millimeters

Best for: High-pressure 12V EFI systems.

Why it ranks #8: This external pump is for 12V DC EFI systems and lists 255 LPH at 43 PSI and 300 LPH at 43 PSI with 13.5V.

A 300 LPH maximum flow rating at 43 PSI and 13.5V gives the EVIL ENERGY pump a high-pressure EFI focus. It is specified for 12V DC EFI systems, with additional flow figures at 43 and 75 PSI to help buyers compare capacity at operating pressure.

The listed test rates—255 LPH at 43 PSI and 12V, and 200 LPH at 75 PSI and 12V—show how the stated output changes with pressure. Its 300 LPH maximum is specified at 43 PSI and 13.5V, so buyers can distinguish that condition from 12V figures. The maker recommends mounting below the tank for gravity-fed fuel flow. Gasoline, pump gas, race gas, and diesel are listed as compatible media; the 12V DC EFI-only limitation narrows its intended system fit.

Skip it if you need a low-pressure carburetor pump; the Megaflint E8012S specifies 5–9 PSI and 30 GPH for that role.

This fits buyers assembling a 12V DC EFI system who need the stated high-pressure flow figures and can mount the pump below the tank. Its EFI-only application is a firm boundary for carbureted setups.

Listed on Amazon as: EVIL ENERGY External Inline Fuel Pump 300 LPH 12V with 60mm Bracket Black

#9

9. CarBole 300 LPH

• Material: Stainless Steel
• Compatible with Vehicle Type: Car
• Outlet Connection Size: 0.25 in
• Inlet Connection Size: 0.63 in

Best for: High-flow external EFI pump.

Why it ranks #9: Its external EFI pump lists 255 LPH at 43 PSI and 300 LPH at 43 PSI with 13.5V; the listing does not recommend alcohol or E85 fuels.

A 300 LPH maximum flow rate at 43 PSI and 13.5V gives the CarBole pump a clear high-flow role in 12V EFI systems. Its external inline format avoids an in-tank mounting requirement, with 200 LPH at 75 PSI and 255 LPH at 43 PSI also specified at 12V.

The three flow figures distinguish operating conditions: 200 LPH at 75 PSI and 12V, 255 LPH at 43 PSI and 12V, and a 300 LPH maximum at 43 PSI and 13.5V. That context helps buyers compare output without treating the maximum as the 12V figure. The external design does not require tank mounting, and the listed 10AN inlet and 6AN outlet define the plumbing connections. The maker recommends using a pre-filter and cautions against alcohol/E85 fuels.

Skip it if you need stated E85 compatibility; the EVIL ENERGY KT04026-AMZ1 lists gasoline and race gas without CarBole’s alcohol-fuel caution.

This suits buyers seeking an external high-flow pump for a 12V EFI system who can use the stated AN connections and add a pre-filter. Its alcohol/E85 caution makes fuel choice an important boundary.

Listed on Amazon as: CarBole Universal Electric External Inline Fuel Pump, 12V 300LPH High Flow Rate, with Mounting Bracket Clamp

#10

10. JDMSPEED High-Pressure Pump

• Material: Alloy Steel, Brass, Rubber
• Compatible with Vehicle Type: Car, Truck, Other High-Performance/MODIFIED…
• Outlet Connection Size: 0.25 in
• Inlet Connection Size: 0.5 in

Best for: Adaptable external EFI replacement.

Why it ranks #10: This external injection pump lists a 15–90 PSI range with final pressure set by a regulator, but offers less clearly specified flow data than the other options.

Its 15–90 PSI pressure range, with final pressure set by a regulator, makes this JDMSPEED external pump an option for fuel-injection systems needing regulated delivery. The pump mounts outside the tank, and the package includes a mounting clamp, rubber connection covers, terminals, gaskets, nuts, and a bracket bolt.

An external installation avoids placing this pump inside the tank, while the supplied clamp and bracket hardware support mounting it outside. The 15–90 PSI range is not a fixed delivered pressure: the supplied facts say a regulator sets final fuel pressure, so the system must account for that component. Brass and alloy-steel construction is specified, with 1/2-inch inlet and 1/4-inch outlet connections. The maker notes that some adapting may be required depending on the application.

Skip it if you need a low-pressure carburetor pump without regulator-set EFI pressure; the SOLLON 06SL01HEP specifies 2.5–4 PSI.

This suits buyers adapting an external fuel-injection pump installation who can provide pressure regulation and accommodate the listed port sizes. Allow for application-specific adapting rather than assuming a direct-fit installation.

Listed on Amazon as: Universal External In Line Fuel Pump High Pressure With Mounting Bracket Clamp 12V Gasoline Fuel Injection Pump Replacement 0580464070 0580453911 0580463017 Red Electric Injection Systems