Gas Caps & Deck Fills

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      • Sea Dog Marine Bronze Adjustable Deck Plate Key
        $55.99
        $37.99

        Sea Dog Bronze Adjustable Deck Plate Key This Sea Dog Deck Plate Key opens to a maximum of 6" and comes with two sizes of stainless steel pins, 3/16" and 5/16" allowing it to fit most plates or caps. Features a drilled hole in the handle for the...

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      • Whitecap Stainless Steel 1-1/2" Angled Gas Deck Fill w/ Key
        $67.49
        $49.49

        Whitecap Stainless Steel 1-1/2" Angled Gas Deck Fill w/ Key The Whitecap Stainless Steel 1-1/2" Angled Gas Deck Fill w/ Key is imprinted and color coded with the international standard symbols. Features: Flange: 3" Hose: 1-1/2" Angle:...

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      • Perko Locking Gas Deck Fill for 1-1-2" Hose
        $78.99
        $56.99

        Locking deck fill with black plastic splash guard along with cap and strap. Locking cap has cover for the key slot. Chrome plated zinc alloy. Includes 2 keys, also requires grounding per U.S.C.G. requirements. TECH INFO: For Hose Size: 1-1/2" O.D...

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      • Perko Replacement Locking Gas Cap
        $50.99
        $36.49

        Fuel System Locking Cap for 1-1/2" Non-Vented Fills. Black Plastic with Gasket Built in Lock Cylinder Fits PERKO Fills 0520, 0527, 0528, 0557, 0599 and 1270

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      • Whitecap Stainless Angled EPA Pull Up Deck Fill - Water
        $102.99
        $72.99

        Whitecap Stainless Angled EPA Pull Up Deck Fill - Water The Whitecap Stainless Steel Angled EPA Pull Up Water Deck Fill is EPA approved for visual/audible open/close of cap. Features imprints and color coded international standard symbols...

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      • Gen3 Marine Stainless Steel Gas Deck Fill w/ Key
        $33.99
        $28.99

        Gen3 Marine Stainless Steel Gas Deck Fill w/ Key Gen3 Marine Gas Deck Fills are constructed of corrosion-resistant 316 stainless steel that's durable and long-lasting. The slotted cap of this deck fill requires a key to open for added security. The cap...

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      • Gen3 Marine Stainless Steel Fuel Deck Fill w/ Key
        $33.99
        $28.99

        Gen3 Marine Stainless Steel Fuel Deck Fill w/ Key Gen3 Marine Fuel Deck Fills are constructed of corrosion-resistant 316 stainless steel that's durable and long-lasting. The slotted cap of this deck fill requires a key to open for added security. The...

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      • Sea Dog Cast Stainless Hose Deck Fill - Body Only
        $35.49
        $25.99

        Sea Dog Keyless Fills are made from Cast 316 Stainles steel with the cap molded from fiberglass filled nylon. Each deck fill has a specail cap with a built-in key for easy cap removal. The hinged key can be locked in the upright position to open or close...

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      • Whitecap Stainless EPA Angled Pull Up Deck Fill - Waste
        $102.99
        $72.99

        Whitecap Stainless Steel Angled EPA Pull Up Deck Fill - Waste The Whitecap Stainless Steel Angled EPA Pull Up Waste Deck Fill is EPA approved for visual/audible open/close of cap. Features imprints and color coded international standard symbols...

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      • Whitecap 6394C Stainless Gas Hose Deck Fill
        $93.99
        $68.49

        Whitecap 6394C Stainless Gas Hose Deck Fill The Whitecap Stainless Gas Hose Deck Fill is imprinted with international standard symbols. Specifications: Hose: 2" Flange: 3-1/2" Angle: 90° Chain Included Fastener: 10 Material: 316 Stainless...

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      • Whitecap Stainless Steel Tapered Hose Deck Fill - Diesel
        $112.99
        $80.49

        Whitecap Stainless Steel Tapered Hose Deck Fill - Diesel The Whitecap Stainless Steel Tapered Hose Diesel Deck Fill features a large opening to allow for a better seal with a nozzle. Features: Flange: 3-1/2" Hose: 1-1/2" Angle: 90° Fastener:...

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      • Whitecap 6395C Stainless Diesel Hose Deck Fill
        $93.99
        $68.49

        Whitecap 6395 Stainless Diesel Hose Deck Fill The Whitecap Stainless Diesel Hose Deck Fill is color coded and imprinted with international standard symbols. Specifications: Hose: 2" Flange: 3-1/2" Angle: 90° Chain Included Fastener: #10 316...

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      • Perko Straight Neck Vented Fill - for 1-1/2" Hose
        $35.49
        $26.99

        Perko Straight Neck Vented Fill - for 1-1/2" Hose Made from white polymer. Straight neck, with an integral tank vent with flame arrestor, and a flip top cap. No ground wire required. Specifications: For Hose Size: 1-1/2" For Vent Hose Size:...

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      • Whitecap Stainless Diesel Hose Deck Fill - Chain & Key
        $62.99
        $45.99

        Whitecap Stainless Diesel Hose Deck Fill - Chain & Key The Whitecap Stainless Diesel Hose Deck Fill is keyed and comes with a cap chain. The deck fill is imprinted with international standard symbols and color coded. Features: Flange: 3" Hose:...

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      • Whitecap 1-1/2" Gas Hose Deck Fill w/Splash Shield
        $115.49
        $85.49

        Whitecap 1-1/2" Gas Hose Deck Fill w/Splash Shield This Whitecap gas hose deck fill is made from 316 stainless steel and is designed for use in both fresh and saltwater environments. Accepts hoses up to 1-1/2" and requires no deck fill key to open...

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      Boat Gas Caps

      Some boat owners will take the trouble to use fuel additives to protect their gas from deteriorating, but overlook a leading cause of fuel contamination: water seeping in from failed boat gas caps. Since these components are your fuel line (and engine’s) first line of defense, it makes sense to ensure that they are in good working order. Make checking your boat’s gas cap part of your pre- and post-trip maintenance. Since rubber components like O-rings degrade over time, it is important to check your gas cap after every trip and replace the gas cap’s rubber parts once a year.

      Need boat gas cap replacement parts? Wholesale Marine has a great selection! We carry caps from all the best brands like Attwood, Davis Instruments, Moeller Marine, Perko Marine, and Sea Dog, and An economical choice is Perko’s Vented Fill, for gas only. Thinking of upgrading from plastic to metal?Sea Dog offers a Cast Stainless Fuel Deck Fill with Deck Key also at an affordable price that accepts a standard 1-½” fuel hose.

      Got a Question? Ask the Pros at Wholesale Marine

      Did you know that there are replacement inserts for your gas cap? This way you’ll save money and extend your gas cap’s service life. Perko has a replacement a href="https://www.wholesalemarine.com/perko-fuel-fill-locking-insert.html">Fuel Fill Locking Insert for just that purpose. Concerned about someone siphoning your tank? Perko also offers Replacement Locking Gas Caps to thwart fuel thieves!  While you’re at it, stock up on Sea Dog O-Rings so you’ll always have spares on hand.

      Turn to Wholesale Marine whenever your boat requires a replacement part or upgrade.Give us a call and be sure to ask about the special programs we have for our customers including flat rate shipping for $6.99 and our Captain’s Club Rewards Program for great discounts on future Wholesale Marine purchases. We’re here Monday through Friday from 9:00 AM until 6:00 PM EST at (877) 388-2628.