Attwood Marine Fuel Line Assemblies

Attwood Marine Fuel Line Assemblies: Engineered for Safety on the Water

When it comes to keeping fuel flowing reliably and safely to your outboard motor, few names carry the weight of Attwood Marine. A proven marine industry leader for over 100 years, Attwood has long been at the forefront of fuel system innovation — and their fuel line assemblies are a prime example of that engineering commitment in action.

What Sets Attwood Fuel Line Assemblies Apart

Attwood's fuel line kits are built around three proprietary technologies that work together to improve performance, safety, and environmental compliance:

• Universal Sprayless Connector: This award-winning exclusive fitting eliminates fuel spray when connecting or disconnecting the line from the tank — a meaningful safety upgrade over traditional fittings. It is compatible with all standard marine fuel tanks using a 1/4" NPT output.
• Multi-Layer Low-Permeation Primer Bulb: Unlike conventional single-layer bulbs, Attwood's exclusive multi-layer construction significantly reduces fuel evaporation, helping conserve fuel and reduce emissions.
• Fiber-Reinforced Low-Permeation Fuel Hose: The hose itself is rated up to 100°C and 600 PSI, and is engineered to resist kinking and hardening — even when used with ethanol-blended fuels, which are notorious for degrading lesser hose materials over time.

Stepless 360-degree stainless steel clamps and precision-engineered hose barbs are included across the lineup, designed for pressurized fuel systems and guaranteed to be leak-free — a critical requirement for any on-water application.

Broad Engine Compatibility

Attwood offers fuel line assembly kits tailored to fit the most popular outboard engine brands, including Yamaha, Mercury, Evinrude/Johnson, Honda, and Suzuki, as well as universal configurations for non-OEM-specific setups. Kits are available in multiple lengths (commonly 6 and 12 feet) and in both 3/8" and 5/16" hose diameters to match a wide range of engine requirements. Select kits also include an optional Fuel Demand Valve, which prevents engine flooding caused by pressurized fuel — especially useful on larger or higher-performance outboard setups.

Compliance and Standards

Attwood's fuel line assemblies are EPA compliant and CARB certified, reflecting the brand's long-standing commitment to meeting and exceeding U.S. Coast Guard, ABYC, and CE regulatory standards. For boaters, this means peace of mind knowing the components on their vessel are built to the highest safety benchmarks in the industry.

Whether you're replacing a worn-out assembly before the season starts or upgrading to a safer, more fuel-efficient system, Attwood Marine's fuel line assemblies offer a range of options trusted by both recreational boaters and OEM boat builders alike. Browse the full selection above, or explore everything Attwood Marine has to offer across all marine categories.