Best Universal Inline Fuel Pump for EFI and Carbureted Engines

#1 · Best Overall

1. EVIL ENERGY 300 LPH Bracket Pump

• Body Material: Metal
• Compatible with Vehicle Type: Car, Truck
• Outlet Connection Size: 6 millimeters
• Operation Mode: Electric

Best for: EFI flow with bracket mounting.

Why it ranks #1: Its 12V EFI application, 300 LPH maximum listed flow, 75 PSI operating pressure, and included 60mm bracket suit many external EFI installations.

A supplied 60 mm bracket gives the EVIL ENERGY KT04026-AMZ1 a defined mounting format for its external 300 LPH inline pump. It is specified for 12V DC EFI systems, with flow figures at two pressures and compatibility with gasoline, race gas, pump gas, and diesel.

The pump lists 200 LPH at 75 PSI and 255 LPH at 43 PSI on 12V, rising to 300 LPH at 43 PSI and 13.5V. These figures help match output to operating conditions rather than relying on the maximum alone. Its 10 mm inlet and 6 mm outlet identify connection sizes for line planning. The manufacturer recommends mounting below the tank to support gravity-fed fuel flow, and the stated operating-temperature range is −68°F to 194°F.

Skip it if you cannot mount below the tank; the JDMSPEED GSL392 is listed as an external pump without that placement recommendation.

Choose this EVIL ENERGY pump for a 12V EFI build where its pressure-specific flow figures and 60 mm bracket suit the installation. Plan for the recommended below-tank position and the listed 10 mm inlet and 6 mm outlet.

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

#2 · High-Flow EFI

2. EVIL ENERGY 300 LPH Inline Pump

• Body Material: Alloy Steel
• Compatible with Vehicle Type: Car
• Outlet Connection Size: 0.38 in
• Operation Mode: Electric

Best for: EFI pump with alloy-steel body.

Why it ranks #2: This 12V EFI pump lists 200 LPH at 75 PSI and up to 300 LPH at 43 PSI and 13.5V, with gasoline, race gas, and diesel compatibility.

An alloy-steel body distinguishes the EVIL ENERGY KT04002-HW, a 300 LPH external inline pump specified for 12V DC EFI systems. Its pressure-specific test flows and gasoline, race gas, pump gas, and diesel compatibility give buyers concrete points for evaluating an EFI installation.

The listed flow is 200 LPH at 75 PSI and 12V, 255 LPH at 43 PSI and 12V, and 300 LPH at 43 PSI and 13.5V. Those different figures help prevent treating maximum flow as constant across operating conditions. The 3⁄8-inch inlet and outlet provide matching connection sizes for line planning. The manufacturer recommends installation below the tank to ensure gravity-fed flow, and the specified operating-temperature span is −68°F to 194°F.

Skip it if you need a pump with a supplied 60 mm bracket; the EVIL ENERGY KT04026-AMZ1 lists one.

This EVIL ENERGY model suits a 12V EFI installation needing an external pump with a specified alloy-steel body and 3⁄8-inch connections. Plan for the recommended below-tank placement and compare the pressure-specific flow figures with system needs.

Listed on Amazon as: EVIL ENERGY External Inline Fuel Pump 300 LPH High Flow 12V Universal

#3 · Stainless Body

3. CarBole 300 LPH Inline Pump

• Body Material: Stainless Steel
• Compatible with Vehicle Type: Car
• Outlet Connection Size: 0.25 in
• Operation Mode: Automatic

Best for: High-flow EFI conversion.

Why it ranks #3: The external EFI pump lists 300 LPH at 43 PSI and 13.5V and has a stainless-steel body; the manufacturer advises against alcohol and E85 fuels.

A stated maximum flow of 300 LPH at 43 PSI gives the CarBole a high-flow option for 12V EFI systems. Its external inline layout mounts outside the tank, while the included mounting bracket clamp supports installation where an in-tank pump is not wanted.

The flow figures clarify how output changes with pressure: the pump lists 255 LPH at 43 PSI and 200 LPH at 75 PSI, helping EFI builders compare its delivery with their system needs. Stainless-steel body construction provides the specified material for an external installation, and the bracket clamp gives a mounting point. It accepts 10AN inlet and 6AN outlet connections. Use a pre-filter as directed, and note the stated gasoline and diesel suitability excludes recommended use with alcohol or E85 fuels.

Skip it if you need a carburetor pump; the Megaflint E8012S supplies a lower 5–9 PSI output for low-pressure applications.

Choose this CarBole for a 12V EFI installation that calls for substantial external inline flow and uses gasoline or diesel. Its 10AN inlet and 6AN outlet, pre-filter recommendation, and fuel restriction are important installation considerations.

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

#4 · Installation Kit

4. JDMSPEED GSL392 Pump

• Body Material: Metal
• Compatible with Vehicle Type: Car, Truck
• Operation Mode: 12v

Best for: External pump installation kit.

Why it ranks #4: Its external inline design lists 255 LPH and 15–120 PSI operating pressure, and the package includes fittings, clamps, connectors, and mounting cushion.

A package containing fuel fittings, electrical connectors, crush washers, clamps, and a mounting cushion makes the JDMSPEED GSL392 a ready-to-assemble external-pump option. Its stated 255 LPH flow and 15–120 PSI operating range target higher-pressure applications with a regulator setting final pressure.

The 255 LPH flow figure gives a defined output reference, while the broad 15–120 PSI operating range leaves final fuel pressure to the regulator. That makes regulator selection part of planning rather than an assumed pump setting. The included 3/8-inch hose-barb fittings, electrical connectors, washers, mounting clamps, and cushion supply key installation pieces. It mounts outside the tank, and the listing identifies it as a GSL392 replacement for vehicles and trucks.

Skip it if you need a low-pressure carburetor pump; the SOLLON 06SL01HEP lists a 2.5–4 PSI output.

This JDMSPEED kit fits buyers assembling an external, higher-pressure fuel-pump installation who can set pressure with a regulator. Account for the regulator and confirm the supplied 3/8-inch hose-barb fittings suit the plumbing plan.

Listed on Amazon as: High Flow Pressure External Inline 255LPH Fuel Pump With Installation Kit Replacement For GSL392 400-939 Universal

#5

5. Pindex 116 PSI Inline Pump

• Body Material: Copper
• Compatible with Vehicle Type: Car
• Outlet Connection Size: 0.25 in
• Operation Mode: Electric

Best for: High-pressure injection replacement.

Why it ranks #5: This high-pressure inline option lists 72.5–116 PSI operation and 120 LPH at 6 bar, with numerous compatible part numbers provided.

A listed operating-pressure range of 72.5–116 PSI sets the Pindex apart for high-pressure injection applications. It is an external 12V inline pump with a mounting bracket clamp, and its extensive compatible-part-number list helps buyers identify specified replacement references.

Pindex lists 120 LPH at 6.0 bar and 100 LPH at 7.0 bar, giving buyers pressure-specific flow figures for matching a fuel-injection setup. The 1⁄2-inch inlet and 1⁄4-inch outlet define the connection sizes to account for during plumbing. A mounting bracket clamp supports external installation, and the listed compatible references include 0580464070 and 0580453911 among many others. Its specified pressure and flow make system matching essential before installation.

Skip it if you need carburetor-level pressure; the JDMSPEED JDM-E012 is specified at 3–6 PSI.

Consider the Pindex for an external injection-pump replacement when its pressure range, flow figures, and compatible reference list match the system. Verify that the 1⁄2-inch inlet and 1⁄4-inch outlet suit the planned plumbing.

Listed on Amazon as: Pindex Universal External In Line Fuel Pump With Mounting Bracket Clamp,116 PSI High Pressure 12V Electric Pump Injection Systems Compatible with 0580464070 0580453911 0580463017 0580464023,Red

#6 · Carburetor Kit

6. ENGINEMAN 12S Plus Pump

• Body Material: Copper
• Compatible with Vehicle Type: ATV, Car, Motorcycle, RV, Truck
• Outlet Connection Size: 0.31 in
• Operation Mode: Electric

Best for: Carbureted performance engines.

Why it ranks #6: For carbureted applications, it lists 5–9 PSI and 130 L/H and includes a mounting bracket, fuel filter, and 5/16-inch flex line.

Pressure-stabilization technology paired with a stated 5–9 PSI output positions the ENGINEMAN FP106122 for carbureted engines that need fuel delivery during high-RPM operation. Its 130 L/H flow and included installation components give builders useful figures and hardware for planning a setup.

The pump is specified for most 4-, 6-, and 8-cylinder carburetor applications, linking its 5–9 PSI delivery to common engine configurations. Its stated 130 L/H flow and pressure-stabilization technology are intended to support fuel delivery during acceleration and high-RPM operation. The kit includes a mounting bracket, fuel filter, and 5/16-inch flex hose, helping cover basic installation needs. Gasoline and diesel are listed, while the 5/16-inch connection size should be considered when routing fuel lines.

Skip it if you need high-pressure EFI delivery; the Pindex pump lists operation up to 116 PSI.

Choose the ENGINEMAN for a carbureted 4-, 6-, or 8-cylinder setup where the listed pressure range and included filter, bracket, and hose fit the installation. It is not the high-pressure EFI option in this group.

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

#7

7. Megaflint E8012S Pump

• Body Material: Zinc
• Compatible with Vehicle Type: Car, Truck
• Outlet Connection Size: 0.31 in
• Operation Mode: Electric

Best for: Low-pressure carburetor setups.

Why it ranks #7: This 12V low-pressure pump lists 5–9 PSI and 30 GPH, with a 12-inch suction capability and applications including vintage cars, boats, trucks, and generators.

A controlled 5–9 PSI output makes the Megaflint E8012S a low-pressure inline choice for carbureted applications. Its stated 30 GPH flow and 12-inch suction capability support fuel delivery where priming and a modest pressure range matter more than high-pressure EFI flow.

The 5–9 PSI range is explicitly aimed at reducing carburetor flooding or fuel starvation, making its output relevant to low-pressure setups. Up to 12 inches of suction capability can help with fuel pickup and priming, while 30 GPH provides the listed flow figure for planning. Its 5/16-inch connections match the stated hose size. The pump is described for gasoline and diesel use and may serve as a booster, standby unit, or independent installation.

Skip it if you need EFI pressure; the Pindex external pump lists operation up to 116 PSI for injection systems.

The Megaflint suits a vintage car, boat, truck, generator, or carbureted engine needing a 12V low-pressure pump. Choose it for its suction and pressure specifications, not for a high-pressure fuel-injection installation.

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

#8

8. SOLLON HEP-02A Pump

• Body Material: Brass
• Compatible with Vehicle Type: Lawn Mower
• Outlet Connection Size: 0.35 in
• Operation Mode: Electric

Best for: Small-engine low-pressure transfer.

Why it ranks #8: Its 2.5–4 PSI output and 30 GPH flow suit low-pressure carburetor and small-engine use; the listing also describes a built-in check valve.

A compact 5.24-by-3.9-by-2.91-inch body and 2.5–4 PSI output make the SOLLON 06SL01HEP a low-pressure option for space-conscious small-engine installations. Its 30 GPH flow and built-in check valve address fuel movement and backflow in a 12V setup.

The 2.5–4 PSI output places this pump in low-pressure territory for carburetors and listed equipment such as lawn mowers, ATVs, boats, and generators. Its 30 GPH flow provides a stated delivery figure, while the built-in check valve is specified to prevent backflow. The plunger-type supply and stronger suction are also listed performance features. An 8 mm (5/16-inch) hose size helps guide line selection, and the small dimensions can ease placement where room is limited.

Skip it if you need 5–9 PSI for a carbureted performance engine; the ENGINEMAN FP106122 lists that output range.

The SOLLON is a fit for a 12V lawn mower, carburetor, ATV, boat, or generator requiring modest pressure and a compact pump. Check that its 2.5–4 PSI output and 5/16-inch hose size match the application.

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

#9

9. ENGINEMAN HEP-02A Kit

• Body Material: Copper
• Compatible with Vehicle Type: ATV, Car, Motorcycle, Truck
• Operation Mode: Electric

Best for: Complete low-pressure line kit.

Why it ranks #9: This 12V kit is intended for low-pressure carburetor and transfer applications and includes a fuel filter and 6.56-foot, 5/16-inch-ID fuel line.

A 6.56-foot fuel line and included fuel filter make the ENGINEMAN 106052 a kit-focused choice for low-pressure fuel transfer. The 12V pump is specified for 3–6 PSI and gasoline or diesel use, with applications spanning vehicles, boats, lawn mowers, and small engines.

The listed 3–6 PSI output positions this pump for carburetors and other low-pressure setups rather than high-pressure EFI. The 6.56-foot length of 5/16-inch-ID fuel line gives installers a defined line supply, while the included filter adds a specified filtration component to the kit. Its 12V operation and stated use across cars, trucks, boats, lawn mowers, small engines, ATVs, UTVs, and generators offer broad application coverage. Alcohol-based fuels such as E85 are excluded.

Skip it if you use E85; the EVIL ENERGY KT04026-AMZ1 lists gasoline, race gas, pump gas, and diesel compatibility.

Choose this ENGINEMAN kit for a 12V carburetor or small-engine installation that can use its 3–6 PSI range, filter, and supplied 5/16-inch line. Its stated fuel exclusion makes it unsuitable for E85 use.

Listed on Amazon as: Universal Electric Fuel Pump Kit 12V 3-6 PSI Low Pressure with Fuel Filter 6.56 FT 5/16" ID Fuel Line Replacement For Carburetor Lawn Mower Gas Diesel Fuel Transfer Pump

#10

10. JDMSPEED 3–6 PSI Pump

• Body Material: Aluminum
• Compatible with Vehicle Type: ['ATV', 'Motorcycle']
• Outlet Connection Size: 0.31 in
• Operation Mode: Electric

Best for: Carburetor and mower transfers.

Why it ranks #10: Its 3–6 PSI output and flow above 70 L/H suit low-pressure carburetor or transfer duties, but it is not the high-pressure EFI style sought by many inline-pump buyers.

A listed output above 70 L/H at 3–6 PSI makes the JDMSPEED JDM-E012 a low-pressure transfer pump for carburetors, lawn mowers, and similar 12V equipment. Its package includes a socket wire, while stated interface dimensions help plan hose and mounting placement.

The 3–6 PSI output and flow above 70 L/H are the key figures for judging whether this pump suits a low-pressure transfer application. Its 12V supply and listed compatibility with gasoline or diesel engines cover common equipment types including cars, trucks, boats, carburetors, lawn mowers, and generators. The tubing interface is 0.315 inch, and installation holes are 2.638 inches apart. A socket wire is included, simplifying the specified electrical connection component of installation.

Skip it if you need 5–9 PSI for a carbureted engine; the Megaflint E8012S lists that higher pressure range.

The JDMSPEED suits a 12V carburetor, mower, generator, or transfer setup using gasoline or diesel. Its modest pressure range, 0.315-inch tubing interface, and 2.638-inch mounting-hole spacing are the main fit considerations.

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