dojobkinb 3/8in (10mm) Fuel Line Hose 15ft NBR Rubber — 300 PSI High-Pressure, Heat & Oil Resistant

This heavy-duty NBR (nitrile butadiene rubber) fuel hose delivers a balance of flexibility and toughness for fuel delivery, venting, cooling, and oil-transfer tasks around cars, trucks, small engines, and equipment. With a 3/8" (10 mm) inner diameter and 2/3" (17 mm) outer diameter, the hose is supplied in a 15-foot length and is rated for continuous working pressure up to 300 PSI and an extreme burst rating for extra safety. It works with gasoline, diesel, biodiesel blends, oil, grease, air and water, so it suits many under-hood and marine service needs when matched to the application's pressure and temperature requirements.

What temperatures and pressures can this NBR hose safely handle?

The hose is built to operate in a wide temperature window and to withstand high pressure loads typical of fuel and fluid systems. Its working temperature range spans from -40°F to 257°F, while the continuous working pressure is 300 PSI and the burst pressure reaches approximately 1160 PSI.

• Working temperature: -40°F to 257°F (-40°C to 125°C)
• Working pressure: 300 PSI
• Burst pressure: ~1160 PSI for safety margin
• Constructed for repeated flexing and thermal cycling in engine bays

Which fluids and systems are compatible with this fuel line?

NBR material resists petroleum-based fluids and many common engine liquids, making the hose appropriate for fuel delivery, venting, oil cooling, and some pneumatic or coolant roles. Always confirm chemical and pressure compatibility for your specific use before installation.

• Compatible: gasoline, diesel, biodiesel blends, engine oil, grease, air and water
• Not recommended for prolonged contact with aggressive solvents unless specified
• Suitable for fuel system lines, return lines, oil cooler lines and emission vent tubing
• Check clamps and fittings for matching pressure and temperature ratings

How does size, flexibility and fittings affect installation?

The 3/8" ID and 2/3" OD provide a standard fit for many push-lock and barb fittings used in automotive and small-engine systems. The hose's flexibility eases routing through tight engine bays, while its wall thickness supports higher pressure with reliable sealing at clamps.

• Inner diameter: 3/8" (10 mm) — common for fuel and return lines
• Outer diameter: 2/3" (17 mm) — accounts for durable wall thickness
• Length: 15 feet — allows cuts to required lengths for multiple runs
• Use corrosion-resistant clamps sized for 3/8" ID to prevent leaks

What maintenance and safety steps should I follow when using this hose?

Routine checks and correct installation extend service life and reduce failure risk. Inspect clamps, cut ends and routing regularly, and replace hoses showing abrasion, cracking or fuel seepage.

• Visually inspect for chafing, hardening or swell every service interval
• Replace if you find cracks, kinks, or fuel smell near fittings
• Secure with proper clamps and avoid tight bends below the hose's bend radius
• Cut squarely and remove debris from the hose before attaching fittings

Who is this for: dojobkinb's 3/8" ID NBR fuel line is suited to DIY mechanics, professional technicians and builders of performance or utility equipment needing a resilient, heat-resistant fuel and fluid hose. Choose this hose if you require a 15-foot length that can be trimmed to size, can handle petroleum-based fluids, and must resist the temperature and pressure demands of modern engine bays. If your application uses aggressive chemicals or requires certified OEM-specific hoses, verify compatibility first or consult a specialist.