Fuel Banjo Fittings

Fuel banjo fittings provide a compact way to route fuel lines when a pump, tank, filter or regulator port sits close to the frame, firewall or another engine-bay component. Instead of stacking multiple elbow adapters, the banjo body allows the AN outlet to be positioned in the required direction before the banjo bolt is tightened. This helps reduce sharp hose bends, installation stress and unnecessary connection points.

EVIL ENERGY fuel banjo adapters are machined from 6061-T6 aluminum with a black anodized finish for improved corrosion resistance. The 37-degree AN male flare connects to a matching female AN hose end, while the center bore fits over a compatible banjo bolt. Ten AN-and-bore combinations are available from 3AN through 10AN for compact fuel, oil-cooling and compatible power-steering routing. These aluminum adapters are not intended for brake hydraulic systems.

How Do I Choose the Right Fuel Banjo Fitting?

Choose the two sides of the fitting separately. First, match the AN male outlet to the AN female hose end in your system. AN dash sizes are nominal line sizes, so the actual hose inside diameter may vary between PTFE, CPE and other hose constructions.

Next, match the banjo bore to a compatible banjo bolt. Do not select the bore by simply rounding the measured bolt diameter. Confirm the bolt’s nominal diameter, thread pitch, usable length and compatibility with the component port before ordering.

AN Outlet Nominal Line Size Available Banjo Bore
3AN 3/16 in. 8.5mm or 10.2mm
4AN 1/4 in. 12.5mm or 14.5mm
6AN 3/8 in. 10.5mm, 14.5mm or 18.5mm
8AN 1/2 in. 14.5mm or 16.5mm
10AN 5/8 in. 18.5mm

The nominal line sizes above are sizing references, not guaranteed hose inside diameters. The AN outlet must connect to a matching female AN hose end rather than directly to an unfinished hose.

What Should I Confirm Before Installation?

Fuel line size should be based on the engine’s fuel demand, fuel type, pump flow, system pressure and total line length. Although 6AN is common in many street EFI systems, it is not automatically correct for every EFI, carbureted or boosted application.

Before installation, also confirm whether the selected package includes the banjo bolt and sealing washers. A complete banjo connection normally requires the adapter, a compatible hollow banjo bolt and two new sealing washers. Follow the pump, tank, filter or regulator manufacturer’s torque specification, then pressure-test the completed system for leaks before operating the vehicle.

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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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[1 PC][2 PCS]
EVIL ENERGY AN Flare to AN ORB Male Fuel Rail Adapter Fitting
  • AN to ORB Conversion
    Converts AN flare fittings to ORB ports for fuel rails and aftermarket fuel components.
  • High Pressure Capability
    Rated up to 1500 PSI for reliable performance in fuel and oil systems.
  • Leak Free Sealing Design
    37 degree AN flare seal combined with ORB O ring ensures a secure, leak resistant connection.
  • CNC Machined Aluminum
    Made from 6061 T6 aluminum with black anodized finish for corrosion resistance.
  • Wide Size Availability
    Multiple AN sizes available to support custom fuel system layouts.
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  • EVIL ENERGY EVIL ENERGY Fuel Banjo Fitting Banjo Hole to AN Male Flare Adapter Fitting Aluminum BlackEVIL ENERGY Fuel Banjo Fitting Banjo Hole to AN Male Flare Adapter Fitting Aluminum Black - EVILENERGY
    EVIL ENERGY Fuel Banjo Fitting Banjo Hole to AN Male Flare Adapter Fitting Aluminum Black
    Size 3AN,ID 8.5mm 3AN,ID 10.2mm 4AN,ID 12.5mm 4AN,ID 14.5mm 6AN,ID 10.5mm 6AN,ID 14.5mm 6AN,ID 18.5mm 8AN,ID 14.5mm 8AN,ID 16.5mm 10AN,ID 18.5mm Material Aluminum Brand EVIL ENERGY Color Black Connector Type Flare Thread Type UNF   About this item [Material]: Made of high quality lightweight...
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FAQs about Fuel Banjo Fittings

How Do I Choose the Correct Fuel Banjo Fitting Size?

Match the AN outlet to the female AN hose end first, then match the center bore to a verified banjo bolt. The bore diameter alone does not identify the bolt thread pitch or required length. Confirm the bolt’s nominal diameter, thread pitch, length and component-port fitment rather than rounding a caliper measurement to the nearest available bore.

No. The adapter has a 37-degree AN male flare that connects to a matching female AN hose end. For example, a 6AN adapter requires a 6AN female hose end. The 3/8-inch reference associated with 6AN is a nominal line size and should not be treated as the guaranteed inside diameter of every PTFE or CPE hose.

A typical banjo connection requires the fuel banjo adapter, a compatible hollow banjo bolt, two new sealing washers and a matching female AN hose end. Check the selected product variant and package contents before ordering because the fitting size does not automatically mean that the bolt and washers are included.

Use new fluid-compatible sealing washers on both sides of the banjo adapter and make sure the mating surfaces are clean, flat and undamaged. Position the AN outlet before final tightening, then torque the banjo bolt to the specification provided by the component manufacturer. Do not use PTFE tape on the 37-degree AN flare because the flare surfaces—not the threads—create the seal. Pressure-test the system and inspect it again after the first heat cycle.

These Banjo adapters are designed for compatible fuel, oil-cooling and power-steering assemblies, but the aluminum body alone does not establish compatibility with every fluid, pressure or temperature. Confirm the exact fuel blend and operating conditions for the selected product, banjo bolt and sealing washers before installation. Do not use this aluminum fuel banjo fitting in a brake hydraulic system.

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