Dorman Nylon Fuel Line 3/8 in x 10 ft — Flexible, Crush-Resistant Replacement Hose

Dorman 800-075 is a 10-foot length of 3/8-inch nylon fuel line engineered as a direct, durable replacement for damaged or leaking fuel hoses.

This OE-style nylon fuel line is built to move gasoline and common automotive fuels safely while resisting the harsh conditions found under the hood and beneath the vehicle. Manufactured by Dorman with aftermarket experience and backed by ASE Certified technical support, the 3/8-inch line gives you a long, flexible run to repair or reroute fuel delivery components without resorting to short, pieced-together sections.

How does this nylon fuel line hold up in tough underhood environments?

The Dorman nylon compound is formulated to resist common stresses such as heat, vibration and exposure to fuels and oils. It maintains dimensional stability where rubber lines can swell, harden, or crack over time, helping reduce the chance of leaks and fuel odor.

• 3/8-inch inner diameter for a broad range of fuel fittings and applications
• Nylon construction resists fuel absorption and chemical attack
• Flexible yet crush-resistant for routing in confined engine bays
• 10-foot length provides material for long runs or multiple repairs

Will this fuel line work with my vehicle's fuel system?

This 3/8-inch line is compatible with many domestic and import vehicles that use 3/8" fuel hose for return or feed lines. It’s ideal for sections of line that require a tougher, low-permeability material than traditional rubber hose.

• Suitable for fuel feed and return lines using 3/8" connectors
• Can be cut to length and attached with approved clamps or crimp fittings
• Not intended as a replacement for high-pressure fuel injection piping without proper fittings
• Check vehicle service manual for correct hose diameter and routing

How easy is it to install and what tools or accessories are recommended?

Installation is straightforward for anyone with basic automotive repair skills: cut the line to length, fit to the appropriate barb or fitting, and secure with fuel-rated clamps or crimp connectors. Use clean cuts and proper clamps to ensure a leak-free connection and long service life.

• Recommended tools: tubing cutter or sharp utility knife, hose clamp pliers, measuring tape
• Use fuel-rated clamps or crimp sleeves; avoid generic non-rated fasteners
• Flush lines of debris before installation to protect fuel system components
• Trim squarely and install without twisting to maintain sealing surface integrity

Who is this for? Technicians, DIY mechanics, and fleet maintenance teams needing a reliable, cost-effective replacement fuel line will find the Dorman 800-075 useful for repairs and retrofits. It’s particularly well suited for jobs where a long continuous run of 3/8" nylon line is needed, or when upgrading rubber sections to a more fuel-resistant material. Pair it with proper fuel-rated fittings, clamps, and adherence to vehicle-specific routing and pressure considerations for best results.