Description
Nautilus Fuel Master ISO 7840 A1 Fuel Hose – 6 mm (¼″), 8 mm (5⁄16″), 10 mm (⅜″)
Description
A marine- and aviation-grade fuel hose designed to meet ISO 7840 A1 standards. The Nautilus Fuel Master series is engineered for safe, durable fuel delivery and offers excellent resistance to petrol, diesel, ethanol-blended fuels, heat, abrasion, and flame. Suitable for use in Rotax 912, 912iS, and 914 engines.
Available Sizes
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6 mm (¼″) internal diameter — widely used for carburettor feed lines
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8 mm (5⁄16″) internal diameter — suitable for moderate-flow systems
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10 mm (⅜″) internal diameter — often used for fuel return or filter connections
Technical Specifications
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Working Pressure: 10 bar (145 PSI)
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Burst Pressure: ≥ 30 bar
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Material: Nitrile inner tube with textile reinforcement and neoprene outer layer
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Temperature Range: –35 °C to +100 °C
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Minimum Bend Radius:
– 6 mm: approx. 60 mm
– 8 mm: approx. 70 mm
– 10 mm: approx. 80 mm -
Fuel Compatibility:
– Petrol (including AVGAS and MOGAS)
– Diesel
– Ethanol blends up to E10 (10% ethanol content)
Benefits
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ISO 7840 A1 certified for low-permeation, flame-resistant operation
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Ethanol-tolerant up to E10 — compatible with standard unleaded fuels
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Reinforced design prevents kinking, collapse, and vibration fatigue
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Robust outer jacket resists oil, abrasion, and engine bay heat
Applications
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Use in feed and return lines, fuel pump connections, and carburettor links
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Ideal for Rotax 912 and 914 engine installations
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Approved for both aviation and marine applications requiring ISO 7840 A1
Installation Notes
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Secure with aviation-grade hose clamps matched to outer diameter
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Avoid tight bends below the rated radius
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Inspect annually and replace every 5 years or as per service schedule
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Not recommended for ethanol levels above E10
