Gates Fuel/Vacuum Hose 3/8" ID 25 ft – Spiral-Reinforced, Heat & Oil Resistant

Gates 27004 is a 3/8" inner-diameter, 25-foot multi-purpose fuel and vacuum hose designed for return fuel lines, PCV and EEC systems and compatible with gasoline, diesel and common fuel blends.

This reinforced hose provides a durable, heat- and oil-resistant path for low-pressure fuel return and crankcase ventilation applications. Manufactured to meet SAE J30R7 and DIN 73379 requirements (except tolerances), the Gates 27004 balances flexibility with reinforced strength so it can be routed through engine bays, routed along chassis rails, or stored for shop use in convenient two-foot segments.

What environments and fuels can this Gates hose handle?

The Gates 27004 is formulated for use with leaded and unleaded gasoline, diesel, and common oxygenated blends including ethanol (E85), methanol and ethers within EPA-allowed limits. Its materials resist heat, oil, ozone and weathering so it performs reliably in under-hood and exposed installations.

• Temperature range: -40°F to +257°F (-40°C to +125°C) for gasoline blends.
• Compatible with diesel, gasoline, and ethanol blends up to legal limits.
• Cover resists oil, heat, ozone and weathering for outdoor or engine-bay use.

How strong and flexible is the hose for automotive routing?

Spiral reinforcement gives the hose structural integrity while preserving flexibility for bends and clips. The upgraded inner tube resists swelling and deterioration from modern fuel chemistries, reducing the chance of soft spots or early failure in return-line and vacuum scenarios.

• Spiral-reinforced construction maintains shape under low vacuum and 50 psi rating.
• Upgraded tube resists heat and oil to reduce fuel-induced degradation.
• 25-foot length allows cutting to fit and saves trips to hardware stores.

Can I use Gates 27004 on fuel-injection pressure lines or cooling systems?

No — this hose is intended for return fuel lines, PCV and EEC systems, not high-pressure fuel-injection supply lines or cooling system use. For pressure-side fuel injection applications, choose a dedicated fuel injection hose rated for those higher pressures.

• Rated at 50 psi and 24 in/Hg vacuum — not for high-pressure injection lines.
• Do not use in cooling systems; use the appropriate coolant hose instead.
• Intended for fuels with MTBE concentrations no greater than 15% by volume.

How is the product packaged and measured for DIY or shop use?

Gates supplies this hose in a reusable, recyclable package with convenient two-foot cutting marks for quick self-service. The full reel is 25 feet long so you can cut multiple segments sized for clamps, fittings, or length-specific runs without waste.

• 25-foot total length, sold in a display-friendly package for easy storage.
• Marked for cutting into convenient 2-foot segments for quick installs.
• Reusable packaging that can hang on pegboard for retail or shop display.

Who is this for: Gates 27004 is aimed at professional mechanics, restoration enthusiasts, and DIY owners who need a reliable, low-pressure hose for fuel return, PCV, or EEC vacuum lines. If you require a hose that stands up to modern fuels, heat, and oil exposure for non-pressure fuel or ventilation lines, this product provides a practical, serviceable solution — but choose a certified fuel-injection hose for high-pressure supply lines.