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BARTOO Marine Fuel Line Assembly Review: Reliable primer hose for outboards?

BARTOO Marine Boat Fuel Line Assembly, 5/16'' 8mm Nylon Braided 7FT Fuel Hose Line with Connector and Primer Bulb for Yamaha Outboard Motors
4.7
[Ethanol-Compatible Construction]  Works with ethanol-blended fuels; low-permeation material reduces fuel evaporation.
[Complete Fuel Line Kit]  Includes premium primer bulb, 6ft x 5/16in hose and 360° stainless steel clamps.
[Universal Compatibility]  Universal fit for boats, RVs, tractors and caravans; no engine or tank fittings included.
[Backflow Prevention]  Unidirectional valve arrow prevents backflow and ensures smooth, consistent fuel flow.
[Care and Storage]  Store away from direct sunlight, high heat, and rough environments to prolong lifespan.
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BARTOO Marine Fuel Line Assembly is a marine fuel line assembly designed to keep small outboards primed and running reliably. A compact primer bulb and prepared hose cut down fuss when preparing the engine, giving reassurance before heading out on the water. Will universal fittings and the chosen materials stand up to regular use and ethanol-blended fuels?

⚡ At a Glance
  • Unidirectional Flow: Arrow-marked primer bulb prevents backflow and ensures consistent fuel delivery
  • Best for: Boat owners, caravan and RV users needing a universal replacement fuel line
  • Not ideal for: Engines or tanks that require bespoke fittings, as no engine or tank fittings are included

Includes a rubber primer bulb, nylon-braided hose and 360° stainless steel clamps. Designed as a universal fuel line assembly without engine or tank fittings supplied.


Reliable manual priming, with the supplied rubber primer bulb

Primer bulb contains a unidirectional valve marked by an arrow, so squeezing draws fuel from the tank toward the engine while preventing reverse flow. The inline configuration places the bulb where it is easy to reach for repeated priming.

Faster, more dependable starting for outboards after storage or long idles, especially useful for occasional sailors and trailer boats.

Reduced vapour loss, with engineered low-permeation material

Hose material is formulated to resist permeation from ethanol-blended fuels, lowering the rate at which fuel vapour passes through hose walls. That reduces both smell and gradual fuel loss during storage.

Longer-lasting fuel freshness and less evaporation while the craft is stored or transported, helpful for seasonal use and infrequently used engines.

Secure fittings, with nylon-braided hose and 360° stainless steel clamps

Nylon-braided construction adds abrasion resistance and maintains hose shape under vibration, while 360° stainless steel clamps distribute compression evenly over the barbed connections. The combination aims to reduce leak risk where the hose meets fittings.

A robust connection that tolerates boat vibration and movement, giving reassurance for day trips and longer passages where leak prevention matters.

✨ The 4 Key Reasons for BARTOO Marine Fuel Line Assembly
  1. Primer bulb included, quick manual priming for faster engine starts
  2. Nylon-braided hose, resists abrasion and reduces kinking over time
  3. 360° stainless steel clamps, even compression for fewer leaks under vibration
  4. Storage guidance included, reduces rubber degradation when stored away from sunlight
📋 Technical Details at a Glance
  • Category: Home Improvement, Marine Fuel Line Assembly
  • Brand: BARTOO
  • Product ID: B0C8NLB2WX
  • Hose length: 6 ft (listed in product descriptions)
  • Hose diameter: 5/16 in (8 mm)
❓ Frequently Asked Questions

Q: Is the fuel line compatible with ethanol-blended fuels?

A: Yes, engineered low-permeation material makes the hose compatible with ethanol-blended fuels and helps reduce vapour escape.

Q: Are engine or tank fittings included with the assembly?

A: No, the assembly is universal and does not come with engine or tank fittings, so separate fittings may be required for some installations.

Q: Does the primer bulb prevent fuel flowing back to the tank?

A: Yes, the rubber primer bulb has an arrow indicating flow direction and a unidirectional valve to prevent backflow while priming.

🏆 Our Verdict

Suitable for boat owners and owners of caravans or tractors who need a ready-to-fit fuel line and primer bulb. Low-permeation hose material and an arrow-marked primer bulb help reduce vapour loss and prevent backflow, while stainless clamps support secure connections. The assembly is a practical, long-lasting choice for routine maintenance and seasonal storage, representing sensible value over time.