External fuel pump

External fuel pumps are high-performance external electric fuel pumps designed to be mounted outside of the fuel tank. They are a popular choice for performance vehicles, engine swaps, and EFI upgrades because they offer incredible installation flexibility and easy serviceability. Unlike in-tank pumps that must be submerged inside the fuel tank, an external pump can be conveniently and safely mounted to a frame rail, firewall, or near the fuel filter, making it the ideal fuel delivery solution for custom builds.

Why Choose an External Fuel Pump?

For many custom projects, especially classic cars being converted from carburetor to EFI, using an external fuel pump is the simplest and most effective option.

  • Easy to Install & Service: The single biggest advantage is that there is no need to drop or modify the fuel tank. This makes installation, inspection, and future replacement incredibly straightforward.
  • Powerful Performance: High-flow models, specifically an external efi fuel pump, can deliver extremely high flow rates (e.g., 300LPH or 405LPH) to easily support high-horsepower turbocharged or V8 engines.
  • Universal Application: They are a 'universal' solution that can be adapted to almost any vehicle. They are also the perfect choice for setting up dual-pump systems or fuel surge tanks.
  • Effective Cooling: Mounting the pump in the airflow under the chassis helps it stay cool during operation.

EVIL ENERGY Fuel Pump: The Reliable Choice for External Pumps

When you need an external electric fuel pump that is both powerful and durable, an EVIL ENERGY fuel pump is your guarantee of quality. EVIL ENERGY specializes in providing external pumps that have been rigorously tested on both the street and the track.

We offer high-pressure external EFI fuel pump models designed for modern fuel injection, ensuring stable, uninterrupted fuel delivery even under high boost and high RPM. Every EVIL ENERGY fuel pump is built to be the reliable heart of your high-performance engine.

Important Note: High-Pressure (EFI) vs. Low-Pressure (Carb)

It is critical to select the correct external fuel pump for your application:

  • External EFI Fuel Pump: This is a high-pressure pump (43-58+ PSI) designed only for fuel injection systems.
  • External Carburetor Pump: This is a low-pressure pump (5-9 PSI) designed only for carburetors.

EVIL ENERGY offers both types of external pumps. Please ensure you choose the correct model for your project.

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EVIL ENERGY PTFE Hose End Fitting for PTFE Hose Only (3/4/6/8/10/12AN) - Black - EVILENERGY[Straight,1PC]
EVIL ENERGY PTFE Hose End Fitting for PTFE Hose Only (3/4/6/8/10/12AN) - Black

Engineered for high-pressure, high-temperature fuel systems, the EVIL ENERGY PTFE Hose End Fitting delivers leak-proof performance for PTFE fuel lines in performance builds, LS swaps, boosted engines, and ethanol-based fuel setups. Made from 6061-T6 aluminum with a 360° swivel design, these AN fittings ensure a clean, secure, and easy-to-assemble connection—ideal for builders who demand durability and precision.

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[Black,Without Bracket] black inline evil energy fuel filter with directional arrow and multiple AN fuel line fittingsevil energy fuel filter kit with stainless steel inline fuel filter, AN fittings, and mounting hardware
EVIL ENERGY Inline Fuel Filter with 6AN 8AN 10AN Adapter and Bracket Universal 10/30/40/100 Micron - Black

[Application] Universal fuel filter, includes an6, an8, an10 adapters for different size applications. With mounting bracket keeps the engine bar stylish and clean.

  • [Material] Aluminum alloy fuel filter can and stainless steel filter element.
  • [O-ring] The o-ring provides a tight seal for fittings and end caps.
  • [Function] Can be used for filtering gasoline, diesel, etc. Captures contaminant particles of 10 micron and above to protect the fuel system of the vehicle.
  • [Feature] Removable design, easy to clean or replace filter element at regular time.
  • [Installation Tips] We have debugged the installation direction of the fuel filters before delivery. Please check and ensure the closed end of the filter element docks with the spring. Let the liquid flow following the arrow from the spring end to the other end, and the fuel filter will serve longer.
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[20FT] EVIL ENERGY PTFE Fuel Line Kit, complete black hose & fittings set, 180-day return[16FT] EVIL ENERGY PTFE Fuel Line Kit, black braided hose, fittings, free shipping & return
EVIL ENERGY 4/6/8/10AN PTFE Fuel Line Kit | E85 Nylon Braided Hose | 16/20FT Black Black with Comprehensive Fittings

Three-Layer Construction: Our fuel lines are constructed with a triple-layer material for unparalleled performance and protection. The innermost layer is made of PTFE for maximum chemical resistance, a braided stainless steel layer for strength and durability, and an outer nylon layer for added abrasion resistance and protection.

Multiple Sizes: We offer our fuel lines in 4AN, 6AN, 8AN, and 10AN sizes, catering to the diverse needs of various fuel delivery systems.

Fitting Types: Our kit includes a variety of fittings at 0°, 90°, 45°, and 180° angles, ensuring versatility and flexibility during installation, allowing for custom routing in tight or complex spaces.

Precision Fit and Leak-Free Performance: The combination of the PTFE inner layer and the high-quality aluminum hose ends ensures a precision fit and leak-free connection, even under extreme pressure, providing a safe and reliable fuel system.

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[20FT] EVIL ENERGY PTFE Fuel Hose Kit, complete black braided hose & fittings set[10FT] EVIL ENERGY PTFE Fuel Hose Kit, complete black braided hose & fittings set
EVIL ENERGY 6AN 3/8-inch PTFE LS Swap EFI Fuel Line Fitting Kit | E85 Nylon Braided Fuel Hose With Fittings 10-26FT
  • Parameter: Working temperature range: -76℉ to 446℉ (-60℃ to 230℃). Maximum working pressure: 1,500 PSI. Bursting pressure: 4,500 PSI.
  • Applicable Medium: EVIL fuel line kits are suitable for all automotive fuels, lubricants, and coolants.
  • Suitable for Wide Usage: The PTFE nylon braided fuel line is ideal for use in various high-temperature and high-pressure applications.
  • Notice: The PTFE hose is relatively hard and can't be bent or folded in half. Professional installation is highly recommended.

PTFE nylon braided fuel line kit offers superior durability for high-pressure and high-temperature applications, making it perfect for EFI systems, turbo setups, and all automotive fuels.

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  • EVIL ENERGY 20-120PSI EFI Fuel System Kit with 300LPH Inline Fuel Pump & 10 Micron Fuel FilterEVIL ENERGY 20-120PSI EFI Fuel System Kit with 300LPH Inline Fuel Pump & 10 Micron Fuel Filter
    EVIL ENERGY 20-120PSI EFI Fuel System Kit with 300LPH Inline Fuel Pump & 10 Micron Fuel Filter
    Brand EVIL ENERGY Fuel Pressure Regulator 20-120PSI External Inline Fuel Pump Test Flow:300 LPH (43 PSI&13.5V)Operating Pressure:75PSI Fuel Filter Mounting Bracket ID:50mm+60mm (with the insert) Fuel Filter 10 Micron Package Fuel Pressure Regulator*1 External Inline Fuel Pump *1 10 Micron Fuel Filter*1 Bracket *2...
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    EVIL ENERGY External Inline Fuel Pump Electric 300LPH High Flow 12V with 60 mm Bracket Clamp Red - Black
    ---!@!start!@!---Specifications---!@!end!@!--- Brand EVIL ENERGY Fitment  fit 12V DC EFI systems only Vehicle Most Car Material Alloy Steel Lift Type Electric Fuel Pump Test Flow  200 LPH (at 75 PSI & 12V) 255 LPH (at 43 PSI & 12V) 300 LPH (43 PSI & 13.5...
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  • EVIL ENERGY 300LPH High Flow External Inline Fuel Pump Kit Universal 12V with AN6 Adapter Fittings & Bracket BlackEVIL ENERGY 12V Inline Fuel Pump product parameters showing 75 PSI working pressure, 300 LPH flow rate, and -68°F to 194°F temperature range
    EVIL ENERGY 300LPH High Flow External Inline Fuel Pump Kit Universal 12V with AN6 Adapter Fittings & Bracket Black

    EVIL ENERGY 300LPH High Flow External Inline Fuel Pump Kit - Power Your Performance

    • High Flow: Delivers an impressive 300LPH at 43 PSI / 13.5V, with a maximum pressure of 75 PSI, ensuring ample fuel supply for high-performance EFI builds.

    • Wide Fuel Compatibility: Works with gasoline, pump gas, race gas, diesel, and alcohol/ethanol — one pump for any fuel strategy.

    • Built to Endure: Constructed from high-grade aluminum alloy, operates reliably from -68°F to 194°F, engineered for extreme conditions.

    • Complete Kit: Includes 1× 300LPH external inline fuel pump, 1× 60mm black mounting bracket, 1× AN6 to 3/8 inch aluminum line fitting kit, 1× M12×1.5 to AN6 adapter, and 1× AN6 to M18×1.5 straight adapter — everything needed for a clean, bolt-on install.

    • Optimal Installation: Best mounted under the fuel tank for efficient, gravity-fed fuel flow. Universal fit with no modification required.

    Maximize your vehicle's fuel efficiency with EVIL ENERGY. Order now for high-performance and reliable fueling!

    $153.99
    $153.99
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  • EVIL ENERGY 300LPH External Inline Fuel Pump Kit with regulator, 100-micron filter, 10-micron filter, AN fittings, aluminum fuel line, and installation toolsEVIL ENERGY 12V Inline Fuel Pump product parameters showing 75 PSI working pressure, 300 LPH flow rate, and -68°F to 194°F temperature range
    EVIL ENERGY 300LPH High Flow External Inline Fuel Pump Kit Universal 12V with Pressure Regulator

    Weak fuel flow, pressure drop, or pump failure can hold back your EFI build. The EVIL ENERGY 300LPH External Inline Fuel Pump delivers a steady fuel supply for 12V EFI systems, supporting turbo, supercharged, LS swap, street, and track builds. Rated 300 LPH at 43 PSI with max 75 PSI, it ensures reliable fuel delivery for gasoline or diesel when properly installed.

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  • [Fuel Filter Regulator Kit(No Lines)][LS Swap CPE Fuel Kit]
    EVIL ENERGY Midfield Engine Position Kit Fuel System Soccer Gear - Compatible with E85/Gas/Diesel

    High-Performance LS Fuel System Kit

    • Optimized for 1999-2014 Chevy LS engines (4.8L/5.3L/6.0L) and swaps(LS-based engines).
    • this complete fuel system upgrade includes a 58psi fuel pressure regulator with 10-micron filtration, a high-flow fuel pump (200-300LPH), and 6AN PTFE braided fuel lines (1500psi rated). Ensures reliable fuel delivery for gasoline, E85, and diesel applications. Ideal for LS engine builds, performance upgrades, and boosted applications with durable, precision-engineered components.
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FAQs about External fuel pump

What is an external fuel pump?

An external fuel pump, also known as an inline fuel pump, is an external electric fuel pump that is installed outside of the fuel tank. Unlike an 'in-tank' pump, which is submerged in fuel, an external pump draws fuel through a line from the tank and pushes it toward the engine.

The primary advantage is ease of installation and service. Because it's mounted outside the tank (often on the vehicle's frame rail), you do not need to drop or remove the fuel tank to install or replace it. This makes it a top choice for EFI conversions on classic cars, custom builds, or for anyone who wants easier maintenance.

This is the most important question. It depends entirely on your engine:

  • External EFI Fuel Pump: Choose this if you have a fuel-injected engine. These are high-pressure pumps (43- 58+ PSI) needed to run injectors.
  • External Carburetor Pump: Choose this if you have a carbureted engine. These are low-pressure pumps (5-9 PSI).
  • Warning: Using an external efi fuel pump on a carburetor (without a special, step-down regulator) will flood it. Using a low-pressure pump on an EFI system will not supply enough fuel for the engine to even start.

For best results, you should mount the pump as close to the fuel tank as possible and below the fuel level of the tank. External pumps are designed to 'push' fuel effectively but are not as efficient at 'pulling' it over long distances or uphill. Mounting it low and close to the tank ensures it gets a steady supply of fuel (gravity-fed) and prevents it from running dry, which can cause damage.

An EVIL ENERGY fuel pump is designed for performance and reliability. Whether you need a high-flow external EFI fuel pump for your 500+ HP V8 swap or a steady, reliable low-pressure pump for your classic carburetor, our pumps are built to last. They provide the consistent flow rates you need for your engine to perform at its best.

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