Boat Deck Fills, Gas Caps & Tank Keys

96 results
CategoryBoat Plumbing Fixtures & Supplies
CategoryBoat Deck Fills, Gas Caps & Tank Keys
Show In-Stock Only

Gas Fills

Perko

Gas Fills

Available in 3 options

$14.42 - $71.96

In Stock
Deck Fill

Vetus

Deck Fill

Available in 4 options

$56.99 - $81.99

Special Order Only
Stainless Deck Fills

Vetus

Stainless Deck Fills

Available in 4 options

$90.00 - $108.99

In Stock
Waste Deck Fill for Hose

Perko

Waste Deck Fill or Replacement Cap

Available in 2 options

$17.60 - $56.82

In Stock
Fuel Fill with Locking Cap

Perko

Fuel Fill with Locking Cap

Available in 2 options

$89.20 - $93.66

Out of Stock
Pipe Deck Fill

Buck Algonquin

Pipe Deck Fill - Unmarked

Available in 2 options

$66.87 - $220.87

In Stock
Deck Fill for Hose

Perko

Deck Fill for Hose

Available in 7 options

$8.96 - $284.10

In Stock
0791 of Perko EPA Straight Gas Fill

Perko

EPA Straight Gas Fill

SKU: 1003522 | Item ID: PKO 0791DPGCHR

$141.56

Out of Stock
Chrome Waste Deck Fill for Hose

Perko

Chrome Waste Deck Fill for Hose

Available in 2 options

$80.50 - $143.16

In Stock
Push Up Deck Fill with 2" Hose - Diesel

Whitecap Industries

Push Up Deck Fill for 2" Hose (Diesel)

SKU: 389297 | Item ID: WHT 6895

$91.28

In Stock
STAINLESS UNIVERSAL DECK PLATE KEY

Sea-Dog Line

Universal Deck Fill Key - Small

SKU: 70814 | Item ID: SDL 335695-1

$7.50

In Stock
2IN BRZ DIESEL PIPE DECK PLATE

Buck Algonquin

Pipe Deck Fill - Diesel

SKU: 126194 | Item ID: B/A 00PDP200D

$200.14

In Stock
1-5-st-s-316 of Buck Algonquin Standard Sounding Tube Deck Fit

Buck Algonquin

Standard Sounding Tube Deck Fit

SKU: 1010750 | Item ID: B/A 1.5-ST-S-316

$297.50

In Stock
Pipe Deck Fill

Buck Algonquin

Pipe Deck Fill - Water

Available in 2 options

$127.84 - $187.96

In Stock
CHROME ZINC GAS FILL W/SPLASH GUARD

Sea-Dog Line

Hose Deck Fill With Splash Guard - "Gas"

SKU: 89102 | Item ID: SDL 351750-1

$18.92

Special Order Only
CHR BRZ ANGLED WATER FILL VENT

Perko

0590 Vented Angled Neck Deck Fill - 1-1/2" Hose

SKU: 172894 | Item ID: PKO 0590DPWCHR

$111.94

In Stock
S.S. CAST HOSE DECK FILL BODY ONLY

Sea-Dog Line

Key-Free Hose Deck Fill

SKU: 85010 | Item ID: SDL 351300-1

$37.10

Special Order Only
BLK ANGLED GAS FILL VENT

Perko

0542 Vented Angled Neck Deck Fill - 1-1/2" Hose

SKU: 73856 | Item ID: PKO 0542DPGBLK

$46.90

In Stock
Image coming soon

Perko

Perko Replacement Caps for Flush Style Deck Fills

Available in 11 options

$57.68 - $241.38

In Stock
Image coming soon

Perko

0591 Vented Straight Neck Deck Fill - 1-1/2" Hose

SKU: 378771 | Item ID: PKO 0591DPDCHR

$111.94

In Stock
Image coming soon

Perko

EPA Compliant Sealed Stainless Ratcheting Scalloped Cap Angled Fuel Fill

SKU: 1003523 | Item ID: PKO 0782DPGSTS

$101.74

In Stock
Plastic Gas Fill

Perko

Plastic Gas Fill

Available in 2 options

$20.36 - $20.86

In Stock
BLK ZINC LOCKING INSERT F/0540/0541

Perko

Fuel System Locking Insert - 0525

SKU: 168985 | Item ID: PKO 0525DP0BLK

$45.00

In Stock
0662 of Perko Angled Neck Cap Fill

Perko

Angled Neck Cap Fill

SKU: 1010757 | Item ID: PKO 0662G00BLK

$56.01

In Stock
0663dpgblk of Perko Sealed Ratcheting Cap - Straight Neck

Perko

EPA Compliant Black Deck Fill - Ratcheting, Straight Neck

SKU: 1012055 | Item ID: PKO 0663DPGBLK

$83.01

In Stock
1428 of Perko Sealed Flip Top Cap Fills - Angled Neck

Perko

Sealed Flip Top Cap Fills - Angled Neck

SKU: 1009910 | Item ID: PKO 1428G00BLK

$39.51

Out of Stock
Fuel System Locking Cap

Perko

Fuel System Locking Cap

Available in 2 options

$44.44 - $48.90

In Stock
Image coming soon

Perko

Fuel Inlet Check Valve - NPTF Threaded, Straight, EPA Compliant

SKU: 392600 | Item ID: PKO 0584T00

$40.78

In Stock
EPA Compliant Sealed Stainless Vented Fill for 1-1/2" Hose

Perko

Vented Angled DeckFills for 1-1/2" Hose w/ Color Coded Resin Inserts

SKU: 1041308 | Item ID: PKO 0582DP0STS

$77.66

In Stock
0570 of Perko Splash Guard Cap

Perko

Splash Guard Cap

SKU: 381114 | Item ID: PKO 0570B0099A

$3.79

Out of Stock
2IN SS GAS PIPE DECK PLATE

Buck Algonquin

Pipe Deck Fill - Gasoline

SKU: 167200 | Item ID: B/A 70PDPS200G

$199.65

Special Order Only
BLK COMPACT DECK PLATE KEY

Perko

Deck Plate Key

SKU: 24512 | Item ID: PKO 1247DP0BLK

$8.90

In Stock
1-1/2IN HOSE BLK 35DEG GAS FILL/VENT

Perko

1318 Vented Angled Neck Deck Fill - 1-1/2" Hose

SKU: 131150 | Item ID: PKO 1318DPGBLK

$35.90

In Stock
CHR BRZ ANGLED GAS FILL VENT

Perko

0540 Vented Angled Neck Deck Fill - 1-1/2" Hose

SKU: 131149 | Item ID: PKO 0540DPGCHR

$71.98

In Stock
0557dpgchr of Perko 0557 Water & Fuel Deck Fill - 1-1/2" Hose

Perko

Fuel and Water Fills

Available in 3 options

$88.56

Due to Extreme Lead Times Contact Customer Service for Options
Image coming soon

Perko

EPA Angled Fuel Fill - Fume Free

SKU: 377588 | Item ID: PKO 0780DPGSTS

$101.74

In Stock
fs3816 of Vetus Splash-Stop for Fuel

Vetus

Splash-Stop for Fuel

Available in 3 options

$148.84

In Stock
0782 of Perko Sealed Ratcheting Cap Fill

Perko

EPA Compliant Sealed Ratcheting Cap Fill

SKU: 1012023 | Item ID: PKO 0782DPGCHR

$112.18

Due to Extreme Lead Times Contact Customer Service for Options
07-n-11-8 of PSS Shaft Seals O-Ring Pack and Screw Set

PSS Shaft Seals

O-Ring Pack and Screw Set

SKU: 195885 | Item ID: PSS 07-N-11-8

$4.39

In Stock
Image coming soon

Perko

0579 Vented Angled Neck Deck Fill - 2" Hose

SKU: 188412 | Item ID: PKO 0579D00CHR

$292.08

Due to Extreme Lead Times Contact Customer Service for Options
Image coming soon

Perko

EPA Compliant Sealed Ratcheting Straight Fuel Fill - Gas

Available in 2 options

$71.38 - $101.74

Due to Extreme Lead Times Contact Customer Service for Options
Image coming soon

Davis Instruments

Snap Tool - Stainless Steel Multi Purpose Deck Key

SKU: 455668 | Item ID: DAV 382

$16.20

In Stock
BLK STRAIGHT GAS FILL VENT

Perko

0543 Vented Straight Neck Deck Fill - 1-1/2" Hose

SKU: 190511 | Item ID: PKO 0543DPGBLK

$46.90

Due to Extreme Lead Times Contact Customer Service for Options
EPA Compliant Sealed Replacement Cap with VPR

Perko

EPA Compliant Sealed Replacement Cap with VPR

SKU: 1036540 | Item ID: PKO 0660DPG99A

$84.27

Out of Stock
Image coming soon

Perko

Sealed Ratcheting Polymer Cap Fuel Fill - EPA Compliant

Available in 2 options

$29.86

Due to Extreme Lead Times Contact Customer Service for Options
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Secure and Compliant Boat Gas and Fuel Caps from Fisheries Supply


Fisheries Supply offers a wide selection of marine gas caps, boat fuel caps, and fuel fillers from trusted brands like Perko and Sea Dog Line.

EPA-Compliant and Spill-Resistant

Our marine gas caps and fuel caps are designed to meet stringent EPA regulations, ensuring a secure and spill-resistant solution for your vessel. With vapor-tight construction and gasketed seals, these caps help prevent leaks, spills, and potential fuel theft, safeguarding your investment and the environment.

Versatile Options for Every Vessel

Whether you need fuel caps for a sailboat, bass boat, pontoon, or any other type of vessel, we have you covered.
Our extensive selection includes:
  • Combination cap/vents
  • Stainless steel boat water intakes
  • Diesel deck fills (USCG-mandated)
  • Freshwater tank fills

Tailored Solutions from Knowledgeable Representatives

Our knowledgeable representatives can help you select the optimal gas caps, fuel caps, and deck fills for your boat.

Convenient Replacements and Accessories

In addition to our comprehensive selection of fuel system components, we also offer spare gas cap keys and clearly labeled replacement caps for easy access and identification. Our commitment to providing a complete solution ensures you have everything you need to maintain your boat's fuel system effectively.

At Fisheries Supply, we take pride in offering top-quality marine gas caps, boat fuel caps, and fuel fillers. Browse our selection today and experience the confidence that comes with secure, compliant, and durable products designed to protect your boat and the environment.
If you are also setting up the tank, browse our great selection of boat fuel tank vents.