Moeller Aluminum Male Barb Fuel Fitting ā 3/8" x 3/8" NPT (03344310)
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Aluminum Male Barb Fuel Fitting ā 3/8" x 3/8" NPT ā Moeller 03344310
A precision aluminum male barb fitting that bridges a 3/8" flexible fuel hose to a 3/8" NPT-threaded port. One end accepts a standard 3/8" fuel hose over the barb; the other end threads into any 3/8" NPT female port on a fuel tank, fuel pump, or inline fitting. Built to OEM specifications for a reliable, leak-resistant connection in marine fuel systems.
Best Use Case
Use this fitting when connecting a 3/8" flexible fuel hose to a threaded NPT port ā common in custom fuel system builds, tank installations, fuel pump connections, and fuel line re-routes where a barb-to-thread transition is needed. The aluminum construction makes it a durable choice for both freshwater and saltwater environments. For compatible 3/8" fuel line hose assemblies, see the Moeller Mercury Low-Pressure Aluminum Fuel Line Assembly or the Universal Outboard Fuel Line Assembly ā 80" (3/8"). For bulk 3/8" fuel hose, see the Shields Silverado 4000 3/8" Fuel Line (25 ft).
Key Features
- 3/8" hose barb end ā accepts standard 3/8" flexible fuel hose
- 3/8" NPT male thread end ā threads into any 3/8" NPT female port
- Aluminum construction ā corrosion-resistant and built for marine fuel environments
- OEM-specification build quality for reliable, long-term use
- Universal fit ā not engine-brand specific; works with any 3/8" NPT-ported fuel system component
ā Not for use in potable water systems.
Parts Desk Insights
This is a universal barb-to-NPT transition fitting ā not engine-brand specific. The key specs to confirm before ordering are: (1) the hose inner diameter is 3/8", and (2) the receiving port is a 3/8" NPT female thread. NPT threads are tapered ā use thread sealant (PTFE tape or fuel-compatible thread compound) on the male threads when installing to ensure a leak-free seal. Do not overtighten aluminum NPT fittings into steel or cast ports, as the softer aluminum threads can strip. If the customer needs a 1/4" NPT version for a Yamaha or Mercury application, see the Seachoice 1/4" NPT Male Tank Fitting. For engine-brand quick-connect fittings (BRP, Mercury, Yamaha, Honda, Suzuki, Nissan/Tohatsu), see the Fuel Fittings & Connectors collection.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3ā4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
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