ZTTM Nylon Fuel Line Replacement Hose — 25 ft 5/16 in ID, Fuel-Resistant Flexible Tubing

ZTTM Nylon Fuel Line 800-071 is a 25-foot, 5/16-inch inside-diameter universal fuel hose designed to replace worn or leaking fuel lines with a durable, flexible nylon solution.

This nylon fuel line is engineered as a general-purpose replacement for small engines, lawn equipment, generators, and many automotive low-pressure applications. Offered in a full 25-foot length, the 5/16" inside diameter fits a wide range of standard barbed fittings and fuel system layouts. The material balances flexibility for routing in tight spaces with chemical resistance to common fuels and additives, making it a practical service part for DIYers and mechanics alike.

Will this hose fit my equipment and existing fittings?

The 5/16" internal diameter is a common size for carburetor, fuel tank, and valve connections on many small engines and aftermarket parts. It accepts standard barbed connectors and clamps and can be trimmed to length for custom routing. Check your OEM line size or measure the inner diameter of the hose you’re replacing to confirm compatibility.

• Internal diameter: 5/16" (approx. 7.9 mm)
• Total length: 25 feet for multiple runs or spares
• Works with standard barbed fittings and worm-drive clamps
• Trim-to-fit for carburetors, tanks, filters, and pumps

How durable and fuel-resistant is the nylon construction?

The tubing is manufactured from fuel-resistant nylon formulated for exposure to gasoline, diesel blends, and common stabilizers. Nylon offers good abrasion resistance and retains flexibility in a range of temperatures, which helps prevent kinking or cracking under normal use. For high-temperature engine compartments or pressurized lines, verify suitability with the engine maker.

• Resists common fuels and fuel additives
• Flexible but abrasion-resistant for routing through chassis or mounts
• Low permeability compared with some soft rubbers
• Not intended for high-pressure fuel-injection systems

What’s the easiest way to install and secure this replacement line?

Cut to the required length using a sharp utility knife or hose cutters for a square end. Push the hose fully onto barbed fittings and secure with a stainless-steel worm clamp or spring clamp to prevent leaks. When routing, avoid sharp edges, heat sources above the hose’s rating, and tight bends that could impede fuel flow.

• Cut cleanly and deburr before fitting
• Use clamps rated for fuel service (stainless recommended)
• Route away from exhaust and moving parts
• Replace if you see swelling, cracking, or hardening

How much extra material and flexibility does a 25-foot roll provide?

A full 25-foot length supplies ample hose for multiple repairs or a single long run with spare leftover for future use. The extra material lets you route around obstacles, replace multiple short sections at once, or keep a service coil in your workshop. Coil storage preserves shape and keeps the hose ready for on-the-spot repairs.

• Enough length for several small hoses or one long run
• Coilable for neat storage in a toolbox or shop
• Leftover pieces saved as spares for later repairs
• Can be cut to exact lengths for clean installations

Who is this for? This ZTTM 800-071 25-foot nylon fuel line is aimed at home mechanics, landscapers, fleet maintenance crews, and hobbyists who need a reliable, fuel-resistant replacement hose for small engines, garden equipment, and other low-pressure fuel systems. If you need a versatile, trim-to-fit tube that accepts standard fittings and clamps, this roll provides a durable, cost-effective solution for repairs and preventive maintenance.