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Gas Caps & Deck Fills

      • Moeller Marine Chrome Fuel Deck Fill for 1-1/2" Hose
        List Price: $30.26
        Starting At: $24.21

        Moeller Marine Chrome Fuel Deck Fill for 1-1/2" Hose For use with 1-1/2" I.D. fill hose. Designed with screw mount and splash lip Deck plate fill for gasoline. Cap attached with stainless steel cable. Requires bonding per U.S.C.G. requirements.

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      • Moeller Marine Low Profile Manually Vented Fuel Cap
        List Price: $11.85
        Starting At: $9.25

        Moeller Low Profile Manually Vented Fuel Cap  The Moeller Low Profile Fuel Cap is a Tempo Style vented fuel cap designed for recreational boating. Direct factory replacement parts for your portable fuel tank Used for Topside/Portable Fuel...

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      • Perko Chrome Bronze Replacement Gas Cap with Chain
        List Price: $53.80
        Now: $33.89

        Perko Chrome Bronze Replacement Gas Cap with Chain Chrome plated bronze spare gas cap with stainless steel bead chain for vented or non-vented, angled or straight. For use with Perko 0540 & 0541.

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      • Perko Vented Gas Deck Fill & Tank Vent
        List Price: $31.27
        Now: $22.51

        Integral tank vent with flame arrestor. No deck plate key or ground wire required. Black plastic with flip top cap. 2-7/16" neck length, 1-1/2" for fuel hose, 5/8" for vent hose.

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      • Sea Dog Stainless Steel Deck Plate Key
        List Price: $4.77
        Starting At: $3.77

        Sea Dog Stainless Steel Deck Plate Key Sea Dog investment cast 316 stainless steel deck plate key for use with all fill caps with 1-3/16" holes on center. Fits all Sea Dog cast stainless deck fill caps part #s 351320-351331 and 351-350-351353.

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      • Attwood Replacement Boat Gas Cap and Chain
        List Price: $24.89
        Now: $18.91

        Replacement Cap for gas, diesel and water hose deck fills. For 1-1/4" straight pipe threads. Highly polished finish. Flush cap is slotted for separate key and features an O-ring that seals the cap watertight. Cap is attached by a stainless steel beaded...

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      • Perko Vented Fills for 1.5" Hose - 35° Angled Neck
        List Price: $31.27
        Now: $22.51

        Perko Vented Fills for 1.5" Hose - 35° Angled Neck Features & Specs: 35° Angled Neck Black Polymer Integral Tank Vent with Flame Arrestor No Deck Plate Key or Ground Wire Required Flip Top Cap For Hose Size: 1-1/2" For Vent Size:...

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      • Perko Chrome Gas Deck Fill with Black Plastic Cap and Flange
        List Price: $26.63
        Now: $19.17

        Deck fill with black plastic splash guard and cap with strap. Features key less, easy to use cap with tabs. Chrome Plated zinc alloy. Requires grounding per u.s.c.g. requirements. For Hose Size: 1-1/2" O.D. Flange: 3-1/8" Length of Neck :...

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      • Sea Dog Cast Stainless Fuel Deck Fill with Deck Key
        List Price: $42.43
        Starting At: $30.98

        Sea Dog Cast Stainless Fuel Deck Fill with Deck Key Features: Comes with Deck Plate Key Fits 1-1/2" Fuel Hose Labeled for Gas only The cap threads are 1-1/4" - 11-1/2 NPSM - Straight Investment Cast 316 Stainless

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      • Sea Dog Replacement Deck Fill Gas Cap- Red
        List Price: $8.84
        Starting At: $6.46

        Sea Dog Replacement Deck Fill Gas Cap- Red Features: Fits Sea Dog brand 1-1/2" Deck Fills Cap molded from Fiberglass Filled Nylon The cap threads are 1-1/4" - 11-1/2 NPSM - Straight Gas, diesel and water caps include attachment chains Built-in key for...

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      • Perko Black Plastic Marine Deck Plate Key
        List Price: $5.36
        Starting At: $3.86

        Black plastic deck plate key for deck plate size 1-1/4" and 1-1/2". The keys for 1" thru 1-1/2" deck plates have a 1 inch spade on handle that allows them to fit many other "slot" type opening deck plates.

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      • Sea Dog Flip Top Gas Fill
        List Price: $71.28
        Now: $48.47

        Sea Dog Flip Top Gas Fill Features: Investment Cast 316 Stainless Fits 1-1/2" Fuel Hose

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      • Perko Vented Fill for 1.5" Hose - Straight Neck
        List Price: $62.71
        Now: $45.15

        Perko Vented Fill for 1.5" Hose - Straight Neck Features/Specs: Straight Neck Chrome Plated Bronze Cap Black Polymer Body Stainless Steel Bead Chain Integral Tank Vent with Flame Arrestor and Anti Surge Valve Deck Plate Key and O-Ring...

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      • Sea Dog Stainless Steel Multi-Function Marine Deck Plate Key
        List Price: $8.45
        Starting At: $7.18

        The ultimate deck plate key will fit all Sea-Dog fuel fills as well as most others on the market. Also included on the key is a shackle key, bottle opener and a straight blade screwdriver, plus 5/16" hex head and 7/16" hex head wrench.

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      • Sea Dog Locking Stainless Steel Fuel Deck Fill
        List Price: $77.16
        Starting At: $56.33

        Cast 316 Stainless Steel Locking Gas Fill for 1.5" Hose. Locking Hose Deck Fills prevent fuel theft and include two keys. The cap threads are 1-1/2"-11-1/2 NPSM-Straight and fit all of our 2" stainless steel deck fills. 351330L & 351331L use body part...

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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.