Description

In-Line Fuel Demand Valve

Attwood’s exclusive Fuel Demand Valve eliminates engine flooding and spillage by preventing pressurized fuel from reaching the engine. The valve ensures that fuel is supplied to the engine only when demanded during start-up or engine operation. Designed in partnership with OEM engine manufacturers,  Attwood’s Fuel Demand Valve is compatible with all OEM engine brands.

Features:

  • Prevents engine flooding and fuel spillage due to pressurized fuel
  • Allows only the amount of fuel requested by the engine and prevents a pressurized “slug” of fuel from reaching the engine
  • Made of high-strength composite material designed to withstand the harsh marine environment
  • Compatible with 3/8″ and 5/16″ fuel hose
  • Installs between the fuel tank and the primer bulb
  • Low vacuum restriction helps ensure proper engine function during startup and engine operation (less than 2kPa at 125 liters/hour)
  • Built-in manual override
  • Compatible with Ethanol blended fuels

Specifications:

  • Operating Temperature: -4 degrees F to 176 degrees F / -20 degrees C to 80 degrees C /
  • Storage Temperature: -40 degrees F to 176 degrees F / 40 degrees C to 80 degrees C
  • Operating Input Pressure: 138 kPa (20 psi) protected for 276 kPa (40 psi) psi pressure spike
  • Flow Performance: 125 L/H (33 GPH) at <2 kPa (10" gasoline)
  • Hose Size: (inch) 5/16″ – 3/8″ / (mm) 8 – 10

*Fuel Demand Valve keeps all pressure at the fuel tank when the engine is off

Shipping & Delivery

⚓ Smooth Sailing Shipping

Enjoy FREE standard shipping on most orders over $250 within the continental U.S. (excl. heavy/oversized/hazardous items).

We ship via UPS, FedEx, and USPS . Orders are processed in 1–2 business days with typical delivery in 1–5 business days .

🧭 Track The Voyage

You’ll receive tracking info by email once your order ships. If your package is marked “delivered” but not received, please wait 48 hours then reach out to our team.

🛟 Hassle-Free Returns & Exchanges

Returns accepted within 30 days of delivery. Items must be unused and in original packaging.

  • Mistaken or damaged cargo? We’ll handle return shipping.
  • Changed your course? Return shipping is on you.
  • Report defects or damage within 7 days for a free exchange.

💰 Anchor Your Refund

Refunds go back to your original payment method within 5–7 business days after inspection.

📨 Contact the Crew

Questions about your order? Drop anchor at sales@marineelec.com .