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Attwood Marine 9300FDV7 Fuel Demand Valve for 3/8" and 5/16" Hose

Manufacturer

Attwood Marine

<h3>About Attwood Marine</h3><p><strong>Attwood Marine</strong> has been a cornerstone of the boating world for well over a century. <a href="/7239-attwood-marine">Founded in 1893</a>, the company began by manufacturing precision underwater hardware and on-deck fittings — rudders, struts, cleats, and lights — and quickly earned a reputation for fine engineering and enduring quality. After World War I, the brand's craftsmanship was so well regarded that legendary boatbuilder Chris-Craft turned to Attwood for brass fittings on their iconic pleasure boats.</p><p>Today, Attwood operates as part of the Navico Group by Brunswick, a global family of industry-leading marine companies, yet it has never lost the boater-first focus that built its name. What distinguishes Attwood from many competitors is their end-to-end philosophy: they design, manufacture, test, and distribute their own products rather than simply sourcing components from third parties. Every item in the Attwood catalog is rigorously tested to meet or exceed U.S. Coast Guard (USCG), American Boat and Yacht Council (ABYC), and CE standards — giving boaters and OEM manufacturers alike the confidence to rely on Attwood gear season after season.</p><h3>A Complete Marine Accessories Ecosystem</h3><p>Attwood's catalog spans an impressively broad range of marine needs. On the comfort and ergonomics side, their <a href="/7239-attwood-marine-seat-pedestal-packages-200926">Seat &amp; Pedestal Packages</a> deliver complete, ready-to-install seating system solutions backed by decades of engineering refinement. For boaters who prefer to build or customize their setup, Attwood's Fixed Mount Pedestals provide a sturdy, reliable foundation engineered for lasting stability on the water.</p><p>When it comes to protecting your hull at the dock, Attwood's <a href="/7239-attwood-marine-fenders-200396">Fenders</a> offer dependable, marine-grade cushioning against docks, pilings, and other vessels — an often-overlooked but essential piece of gear for every boat owner. Getting on and off the boat safely is equally important, and Attwood's <a href="/200179-boarding-ladders-attwood-marine-7239">Boarding Ladders</a> are designed with heavy-duty construction, rated hardware, and user-friendly features to make every entry and exit as secure as possible.</p><p>Beyond these categories, Attwood is also widely recognized for its bilge and aerator pumps, navigation lighting, fuel systems, rod holders, and trailering accessories — making the brand a true one-stop resource for outfitting or refreshing virtually any powerboat, fishing boat, or recreational vessel.</p><h3>Why Boaters Choose Attwood</h3><ul style="list-style:disc"><li><strong>100+ Years of Proven Experience</strong> — A heritage of quality engineering stretching back to 1893.</li><li><strong>Multi-Standard Compliance</strong> — Products tested to USCG, ABYC, and CE standards for safety and performance.</li><li><strong>OEM-Trusted</strong> — A leading supplier to major boat manufacturers across a wide range of product categories.</li><li><strong>Corrosion-Resistant Materials</strong> — Extensive use of 304 and 316 stainless steel, chrome-plated zinc, and marine-grade synthetics built for harsh saltwater environments.</li><li><strong>In-House Engineering</strong> — Advanced prototyping, simulation, and real-world testing ensure reliability before any product reaches the water.</li></ul>

Part Number

9300FDV7
09/12/2036 5:11 AM
Sale Price

$30.42

2 left at this price

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Attwood Marine 9300FDV7 Fuel Demand Valve is designed to address engine flooding and fuel spillage issues caused by modern pressurized fuel systems. With EPA regulations requiring portable fuel tanks to remain sealed up to a minimum of 5 PSI, this inline valve ensures that fuel reaches your engine only when demanded during startup or operation, not as a result of tank pressure.

Key Features:

  • Prevents engine flooding and eliminates fuel spray when connecting or disconnecting fittings at the engine
  • Stops pressurized "slugs" of fuel from reaching the engine, preventing potential damage
  • Compatible with 3/8" and 5/16" fuel hose sizes
  • Installs between the fuel tank and primer bulb for above-deck use only
  • Built-in manual override for added convenience
  • Low vacuum restriction (less than 2 kPa at 125 liters/hour) ensures proper engine function
  • 20 PSI maximum nominal input pressure, protected for 40 PSI pressure spikes
  • Compatible with ethanol-blended fuels
  • Constructed from high-strength composite material designed to withstand harsh marine environments

Developed in partnership with OEM engine manufacturers, this fuel demand valve is compatible with all major outboard engine brands. The valve eliminates potential service and warranty issues related to pressurized fuel lines while ensuring reliable engine performance. No siphon protection feature. Use with Attwood Universal Sprayless Connector (8838US6, sold separately) for complete fuel system protection.

Products specifications

Flow Performance

125 L/H (33 GPH) at <2 kPa (10" Gas line)

Fuel Demand Valve

In-Line

Microns

No Siphon Protect

Model

No Siphon Protect

Operating Input Pressure

138 kPa (20psi) protected for 276 kPa (40psi) psi pressure spike

so far great, checking on some other stuff,now. thank you!

GREAT!!!!!!

great parts selection and FREE SHIPPING !! Thanks

super easy checkout with amazon link! Let's you know if in stock or not, which is critical when ordering racing components.

Fast shipping, great price, product was somewhat hard to install but got it done, love the outcome of it. Overall happy.

Best price on the Internet.

incredibly fast processing, inventory, and price.shipped next day. awesome site

First order. Lets see how it goes.

Low price I like that fast to order

Excellent prices, but after a week and a half of hearing nothing I called to find out that my item, the customer service rep said it had been back ordered and I would receive an email once it shipped...my item arrived the next day and I received the shipping email four days later, no big deal just takes a while to get items, but you cannot beat the prices!

There.was a bit of miscommunication between sales and shipping departments, but my order was filled and shipped as stated. Very low price, in fact the lowest on the net, and I did alot of research. Other than the shipping issue, I'm very satisfied and will buy more parts from them soon. Thank you!!!

Greta n fast...

The availability to pay with Amazon.

great and quick

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