Vacuum & Specialty Hoses

Choose the Right Silicone Automotive Vacuum Hose by Inside Diameter

Cracked, hardened, or loose vacuum hoses can create air leaks and interfere with vacuum operated engine controls. Evil Energy automotive vacuum hose is available in eight inside diameters from 7/64 inch to 3/8 inch, with 5FT, 10FT, and 50FT length options. Match the hose ID to the outside diameter of the existing barb or fitting, then measure the complete routed length before ordering. For a single repair, several replacements, or an engine bay refresh, compare silicone vacuum hose sizes and lengths.

Silicone Engine Vacuum Line for Under Hood Routing

This silicone vacuum hose has a 3 mm nominal wall, a listed 43 PSI working pressure, and a temperature range of −40°F to 428°F. It is listed for engine vacuum line replacement, windshield washer fluid routing, turbocharger connections, and air intake components. Confirm the required material, pressure, temperature, and fluid before installation. For gasoline, oil, or emission vapor circuits, compare SAE 30R7 NBR fuel hose options rated for those media. For crankcase ventilation projects, explore oil catch can kits.

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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 Vacuum Hose Tubing Line Silicone 130PSI Max PressureEVIL ENERGY Vacuum Hose Tubing Line Silicone 130PSI Max Pressure
    EVIL ENERGY Vacuum Hose Tubing Line Silicone 130PSI Max Pressure (1/4'' 1/8'' 3/8'' 3/16'' 5/16'' 5/32'' 7/32'' 7/64'') - Black
    Brand EVIL ENERGY Material Silicone Length 5FT/10FT/50FT Size 1/4'' ID:6mm (1/4").OD:12mm 1/8'' ID:3mm (1/8").OD:9mm 3/8'' ID:10mm (3/8").OD:16mm 3/16'' ID:5mm (3/16").OD:11mm 5/16'' ID:8mm (5/16").OD:14mm 5/32'' ID:4m (5/32").OD:10mm 7/32'' ID: 5.5mm (7/32"). OD: 11.5mm 7/64''  ID: 2.8mm (7/64"). OD: 8.8mm Nominal Wall Thickness 3 mm Working Pressure 43PSI Burst Pressure 100PSI(high temperature) 130PSI (room...
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FAQs about Vacuum & Specialty Hoses

What are automotive vacuum hoses used for?

Automotive vacuum hoses carry vacuum or air signals between the intake system and vacuum operated components. Evil Energy silicone vacuum hose is listed for automotive vacuum lines, windshield washer fluid routing, turbocharger connections, and air intake components. Always confirm the required hose size, material, pressure, and temperature for the specific circuit. Power brake systems should use hose specifically rated for brake booster vacuum service.

Match the inside diameter, or hose ID, to the outside diameter of the fitting or hose barb. Measure the old hose opening or the fitting with a caliper rather than ordering by the old hose’s outside diameter. Evil Energy offers 7/64, 1/8, 5/32, 3/16, 7/32, 1/4, 5/16, and 3/8 inch ID options. Measure the complete routing path and allow enough length for the hose to seat fully on both connections.

For gasoline, fuel vapor, engine oil, or PCV service, choose a hose explicitly rated for that medium. A standard silicone vacuum hose should be reserved for the air and vacuum applications identified for the product. PCV and oil catch can circuits may carry oil mist and crankcase vapors, so use the hose material specified for that system. If you smell gasoline, locate and repair the fuel or EVAP leak rather than substituting general vacuum tubing.

Measure each engine vacuum line along its actual routing path, including bends and the portion that seats over each fitting. Add the measurements together and leave a small amount for trimming or future maintenance. A 5FT silicone vacuum hose is practical for one or two localized repairs, 10FT suits several engine bay lines, and 50FT is better for extensive rerouting, multiple vehicles, or workshop inventory. Confirm that the required inside diameter, length, and color combination is available before ordering.

Inspect an engine vacuum line when it becomes cracked, hardened, split, loose, flattened, kinked, or visibly deteriorated. A vacuum leak may be accompanied by hissing, unstable idle, stalling, fault codes, or incorrect operation of a vacuum controlled component. Replace the hose with the correct inside diameter and the required vacuum rating, route it with smooth bends, and secure the connections as specified by the vehicle manufacturer. These symptoms may have other causes, so confirm the leak before replacing parts.

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