Boat Fuel Filling Cap

Marine-Grade for Gas & Diesel Tanks

Watertight, Vented & UV-Resistant – Fits Standard Deck Plates (1.5″ to 4″ Sizes)

Ensure a secure, leak-proof seal for your boat’s fuel tank with our Marine-Grade Fuel Filling Cap. This heavy-duty replacement cap is designed to withstand harsh marine conditions while preventing water intrusion and fuel evaporation.

Key Features:

✔ Premium Marine Construction:

UV-stabilized polypropylene or 316 stainless steel – Saltwater-proof
Integrated O-ring seal – IP67 waterproof rating (submersion-resistant)
Vented/non-vented options – For permanent or portable tanks
✔ Safety & Compatibility:
Fits standard deck fills (Attwood, Perko, Sea Dog patterns)
Key-lockable option – Prevents tampering/fuel theft
Tool-free installation – Threads or quarter-turn bayonet style
✔ Universal Fit:
Sizes: 1.5″, 2″, 3″, 4″ – Matches most fuel deck plates
Gas/Diesel compatible – Ethanol-resistant materials