Moeller 3/8" Bulkhead Mount Fuel Fitting – 03321010
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
3/8" Bulkhead Mount Fuel Fitting – Moeller 03321010
A heavy-duty bulkhead mount fuel fitting designed to route a 3/8" fuel line cleanly and securely through a boat’s hull, deck, or divider panel. The 03321010 creates a sealed, leak-free fuel passage through any panel where the fuel line needs to transition from one compartment to another — built to OEM specifications with o-ring construction for a reliable, long-term installation.
Best Use Case
Use this fitting when a fuel line needs to pass through a structural panel — such as a transom, deck, or bulkhead wall — without an exposed, unsupported hose run. It’s commonly used in custom fuel system builds, tank relocations, and fuel line re-routes where a clean, protected through-panel connection is required. Compatible with 3/8" fuel line hose. For 3/8" fuel line assemblies that connect to this fitting, see the Moeller Mercury Low-Pressure Aluminum Fuel Line Assembly or the Universal Outboard Fuel Line Assembly – 80" (3/8").
Key Features
- Bulkhead mount design — routes 3/8" fuel line through hull, deck, or divider panels
- O-ring seal construction for a leak-free through-panel connection
- OEM-specification build quality for long-term marine fuel system use
- Robust assembly at 454g — includes mounting hardware for a secure panel installation
- Compatible with standard 3/8" marine fuel line hose
⚠ Not for use in potable water systems.
Parts Desk Insights
Bulkhead fittings are a niche but important part of custom and rebuilt fuel systems. Customers asking for this are typically doing a tank relocation, a full fuel system re-route, or building a custom installation where the fuel line must pass through a structural panel cleanly. Confirm the customer’s fuel line diameter is 3/8" before ordering — this fitting is sized specifically for 3/8" hose. For the fuel line hose that connects to this fitting, see the Moeller Mercury Low-Pressure Fuel Line Assembly or the Universal 80" Fuel Line Assembly. For bulk 3/8" fuel line hose by the foot, see the Shields Silverado 4000 3/8" Fuel Line (25 ft) or the 50 ft roll. For engine-brand-specific quick-connect fittings, see the Fuel Fittings & Connectors collection.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
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.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.