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      Gas Caps & Deck Fills

      • Perko Vented Gas Deck Fill & Tank Vent
        $39.49
        $28.49

        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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      • Perko Vented Fills for 1.5" Hose - 35° Angled Neck
        $39.49
        $28.49

        Perko Vented Gas Fill for 1.5" Hose - 35° Angled Neck Th Perko Vented Gas Fill is constructed of durable black polymer and features a 35 degree angled neck. This gas fill has an integral tank vent with an anti-surge valve. Deck plate key not...

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      • Perko Black Plastic Marine Deck Plate Key
        $6.99
        $4.99

        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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      • Perko Vented Gas Fill for 1.5" Hose - Straight Neck
        $78.99
        $56.99

        Perko Vented Gas Fill for 1.5" Hose - Straight Neck The Perko 0541 series of vented fills are built to be durable and long lasting. This fill is marked for gas and features a 2-7/16" straight neck. Perko's 0541 series fills are constructed with a black...

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      • Perko Fuel Fill Locking Insert
        $55.99
        $34.99

        Perko Fuel Fill Locking Insert Perko fuel system locking insert for use with 1-1/2" vented fills. This locking insert fits most Perko vented fills and features a polymer body with zinc alloy lock cylinder. A dual purpose key opens the fill cap and...

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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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      • Perko Gas Tank Vent w/Swivel Elbow
        $20.49
        $15.49

        Perko Gas Tank Vent w/Swivel Elbow This Perko gas tank vent sits at a 90° angle made of zinc alloy, with a black polymer cap. It also includes a removable 30 mesh stainless steel wire screen flame arrestor. The design of this ventilator allows the...

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      • Perko Plate Key for Deck Plates
        $19.99
        $10.49

        Deck Plate Key for Perko Deck Plate models 0552,m 0568, 0580, 0581 0582 and 0583. Also fits with Perko 1 1/4" and 11/2" Deck Plates and many other "Slot" type opening decl plates. Black Plastic 2 Holes for key chain Center to Center of lugs 1...

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      • Perko Replacement Cap with VPR
        $63.99
        $47.99

        Perko Replacement Cap with VPR This Perko replacement gas cap with VPR is EPA compliant sealed. It is built from black polymer, and comes with an O-ring and retainer. Made for 1-1/2" fills for hose.

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      • Perko Angled Neck Vented Fill for 1-1/2" Hose
        $50.99
        $37.99

        Perko Angled Neck Vented Fill for 1-1/2" Hose This angled neck vented fill gas cap from Perko has a black polymer cap, body, and strap. No ground wire is required for this item. Specifications: Fits hose size: 1-1/2" Fits vent hose: 5/8" O.D...

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      • Perko Straight Neck Vented Fill - for 1-1/2" Hose
        $38.99
        $28.99

        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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      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.