3/8 Inch 6FT boat fuel line with primer bulb Nylon Braided

This complete fuel line kit includes a 6-foot length of 3/8" (inner) nylon-braided hose, an inline primer bulb with integrated check valves, and steel hose clamps—assembled to deliver low-permeation performance for gasoline, diesel and ethanol-blend fuels. Built from durable rubber with a braided jacket, the hose balances flexibility for routing in tight spaces with resistance to kinking and abrasion. The primer bulb's check valves let you prime engines in multiple orientations while preventing backflow, and the included steel clamps provide a secure, leak-minimizing connection at fittings.

How does this fuel line handle ethanol-blended fuels and reduce evaporation?

The hose uses engineered low-permeation rubber to limit fuel vapor migration, which helps preserve fuel quality and reduces odor around storage areas. Nylon braiding adds an extra barrier against permeation while improving tensile strength and abrasion resistance.

• Low-permeation rubber compound compatible with ethanol blends
• Nylon braid for added durability and reduced fuel vapor loss
• Designed for long runs without excessive softening or swelling

Can I prime my outboard or RV fuel system with this assembly?

Yes—this kit includes a hand primer bulb with built-in check valves that draw fuel and prevent backflow, making it simple to prime carbureted or EFI prime-inlet systems. The bulb functions in multiple orientations so you can use it while the hose is routed around engine compartments or tank openings.

• Primer bulb with dual check valves for reliable suction
• Works in several positions without interrupting fuel flow
• Quick manual priming for faster engine starts

What sizes, fittings and accessories are part of the kit?

The hose inner diameter measures 3/8" (10mm) with an approximate outer diameter of 5/8" (16mm) and a total length of 6 feet—suitable for many small boats, outboards, motorcycles and RVs. The kit includes steel hose clamps to secure connections and prevent leaks at tank fittings and carburetor or primer-in ports.

• 3/8" (10mm) internal diameter; 5/8" (16mm) outer diameter
• 6-foot pre-cut length for flexible routing
• Sturdy steel hose clamps included for a tight seal

How do I install and maintain the fuel line safely?

Installation is straightforward—route the hose to avoid tight bends and heat sources, attach with the supplied clamps, then use the primer bulb to draw fuel into the line. Store the hose away from direct sunlight when not in use and inspect periodically for wear or softening.

• Avoid routing near exhaust manifolds or sharp edges
• Clamp at both tank and engine/t fitting points for leak prevention
• Store out of direct sunlight and check for cracking or hardening

Who this is for: Boaters, RV owners, small-engine technicians and anyone who needs a reliable, universal fuel transfer and priming solution will find this YIENAKFUN assembly useful. It suits marine outboard motors, portable tanks, lawn equipment, motorcycles and many light vehicles where a 3/8" hose, manual priming and secure clamp connections are required. If you need a straightforward, ethanol-compatible hose with a dependable primer bulb for easier starting and fuel transfer, this kit is designed for that purpose.