Tnisesm 5/16" 6FT Fuel Line Assembly, Black, with Primer Bulb and 304 Stainless Clamps for Outboard & RV

The Tnisesm 5/16" 6FT fuel line assembly is a ready-to-install outboard and RV fuel hose kit that includes a primer bulb, snap-on connector and 304 stainless steel clamps for reliable fuel delivery.

This fuel line assembly is built for small engines and marine applications where a durable, low-permeability fuel hose and secure fittings matter. With 6 feet of 5/16" nitrile rubber tubing, a hand primer bulb, snap-style connector and stainless ear clamps, the kit is designed to handle ethanol-blended fuels and reduce vapor loss while making replacement or installation straightforward.

How does this assembly improve fuel routing on my outboard motor?

The assembly provides a complete, matched path from tank to engine with components chosen to work together: hose material resistant to common marine fuels, a primer bulb for easy starting, and corrosion-resistant clamps. That coordination minimizes leaks and helps maintain steady fuel flow during cranking and low-speed operation.

• 6 ft total hose length (approx. 2.1 m) for flexible routing
• 5/16" (8 mm) inner diameter fits many small outboard fittings
• 304 stainless steel ear clamps for secure, long-lasting connections
• Snap-on connector simplifies attachment to compatible tanks or engines

Is this hose safe for ethanol-blended fuels and marine use?

Yes—the nitrile rubber tubing is formulated for compatibility with ethanol-mixed fuels and features low-permeability properties to limit evaporation. The product should still be stored away from direct sunlight and high heat to preserve material life.

• Engineered low-permeability rubber reduces fuel vapor loss
• Compatible with ethanol blends commonly used in marine and small-engine fuels
• Avoid prolonged sun or heat exposure to prevent premature degradation

What does installation look like and what hardware is included?

Installation is straightforward: cut the hose to required length, push on the snap connector, seat the primer bulb inline, and secure ends with the supplied 304 steel ear clamps. The kit arrives with everything needed to replace an existing fuel line on many boats, RVs, tractors and caravans.

• Snap-on quick connector for fast fitting to compatible ports
• Primer bulb integrated into the line for easy manual priming
• Stainless ear clamps included to crimp and secure hose ends
• 6.88 ft overall packaged length gives working slack for trimming

How long will this assembly last in a marine environment?

Longevity depends on exposure and maintenance, but the combination of nitrile hose and 304 stainless clamps is chosen for durability in fuel service. Regular inspection and avoiding constant UV or heat exposure will extend service life and performance.

• Nitrile rubber resists fuel-related swelling and degradation
• 304 stainless hardware resists corrosion in moist environments
• Periodic checks for cracks, brittleness or clamp looseness are recommended

Who is this for: The Tnisesm 5/16" 6FT fuel line assembly is intended for boat owners, RV and caravan DIY mechanics, small-tractor operators and service technicians who need a reliable, ethanol-compatible fuel hose kit with an integrated primer bulb and corrosion-resistant clamps. It suits anyone replacing an older or leaking fuel line or building a fuel feed for outboards and portable engines where a ready-to-install, matched assembly saves time.