Boat Deck Fills, Gas Caps & Tank Keys

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

EPA Compliant Vented Angled 1/4 Turn Deck Fill

White Water Marine Hardware

EPA Compliant Vented Angled 1/4 Turn Deck Fill

Available in 2 options

$74.42 - $79.09

In Stock
Hose Deck Fill - 316 S.S

Sea-Dog Line

Hose Deck Fill - 316 S.S

Available in 10 options

$35.72 - $42.66

In Stock
Replacement Raised Cap Deck Fill Caps

Perko

Replacement Raised Cap Deck Fill Caps

Available in 2 options

$36.22 - $61.74

In Stock
Deck Plate Fill Key

Sea-Dog Line

Deck Plate Fill Key

Available in 2 options

$2.68 - $5.51

In Stock
deck fill cap

Attwood

Replacement Deck Fill Cap & Chain

SKU: 63209 | Item ID: ATT 66074-3

$29.02

In Stock
EPA Compliant Vented Straight 1/4 Turn Deck Fill

White Water Marine Hardware

EPA Compliant Vented Straight 1/4 Turn Deck Fill

Available in 2 options

$74.42 - $79.09

In Stock
054000099b of Perko Gas Cap O-Ring

Perko

Gas Cap O-Ring

SKU: 445253 | Item ID: PKO 054000099B

$3.32

In Stock
REPLACEMENT CAP FOR 351750

Sea-Dog Line

Replacement Cap - for Hose Deck Fill With Splash Guard

SKU: 84245 | Item ID: SDL 351755-1

$11.45

In Stock
Flip Top Gas Fill

Sea-Dog Line

Flip Top Gas Fill - Investment Cast Stainless

Available in 2 options

$62.26 - $68.04

In Stock
Universal Deck Fill Key

Sea-Dog Line

Universal Deck Fill Key

Available in 2 options

$10.38 - $11.71

In Stock
Deck Plates for Pipe

Perko

0528 Pipe Deck Fills - Gas, Diesel, Water, & Unmarked

Available in 19 options

$91.02 - $434.64

In Stock
Vented Fill for 1-1/2" Hose - Straight Neck

Perko

Vented Fill for 1-1/2" Hose - Straight Neck

Available in 2 options

$67.94 - $71.98

In Stock
Image coming soon

Sea-Dog Line

Angled Hose Deck Fill

Available in 7 options

$27.26 - $49.85

In Stock
Gas Fills

Perko

Gas Fills

Available in 3 options

$14.42 - $71.96

In Stock
Deck Fill with Keyless Cap - Nylon

Sea-Dog Line

Deck Fill with Keyless Cap - Nylon

Available in 9 options

$9.07 - $13.25

In Stock
Image coming soon

Sea-Dog Line

Sea-Dog Replacement Deck Fill Caps

Available in 4 options

$8.94

In Stock
Image coming soon

Perko

Perko Replacement Caps for Flush Style Deck Fills

Available in 11 options

$57.68 - $241.38

Out of Stock
Deck Fill with Keyless Cap - 316 S.S

Sea-Dog Line

Deck Fill with Keyless Cap - 316 S.S

Available in 4 options

$31.42

In Stock
Pipe Deck Fill

Buck Algonquin

Pipe Deck Fill

Available in 7 options

$127.88 - $199.00

In Stock
1429 of Perko Flip Top Cap Fills

Perko

Flip Top Cap Fills

SKU: 456221 | Item ID: PKO 1429G00BLK

$39.10

In Stock
Chrome Waste Deck Fill for Hose

Perko

Chrome Waste Deck Fill for Hose

Available in 2 options

$80.50 - $143.16

In Stock
Pipe Deck Fill - 316 S.S

Sea-Dog Line

Pipe Deck Fill - 316 S.S

Available in 5 options

$19.80 - $43.00

In Stock
Whitecap Deck Fills

Whitecap Industries

Whitecap Deck Fills

Available in 5 options

$54.16 - $77.72

In Stock
ssdf66124 of Marine Hardware Deck Fill - Toggle Cap

Marine Hardware

Deck Fill - Toggle Cap

Available in 4 options

$58.84

In Stock
REPLACE. CAP FOR 351520-351523

Sea-Dog Line

Replacement Deck Fill Cap For SeaDog Deck Fills 351320 - 351323

SKU: 49337 | Item ID: SDL 351390-1

$17.72

In Stock
Deck Fill with Guard

Sea-Dog Line

Deck Fill with Guard

Available in 2 options

$15.62 - $34.68

In Stock
O-RING ONLY F/00PDP200

Buck Algonquin

Pipe Deck Fill - Replacement O-Ring

SKU: 157346 | Item ID: B/A ORING200

$4.61

In Stock
Deck Plates for Hose

Perko

0520 Hose Deck Fill - 1-1/2" Hose

Available in 4 options

$87.66 - $151.98

In Stock
Fuel Fill with Locking Cap

Perko

Fuel Fill with Locking Cap

Available in 2 options

$89.20 - $93.66

Out of Stock
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
316 SS Cast Deck Fill Flip-Tab

White Water Marine Hardware

316 SS Cast Deck Fill Flip-Tab

Available in 6 options

$39.81 - $54.94

In Stock
Stainless Deck Fills

Vetus

Stainless Deck Fills

Available in 4 options

$90.00 - $108.99

In Stock
Deck Fill for Hose

Perko

Deck Fill for Hose

Available in 7 options

$8.96 - $284.10

In Stock
Marelon® Deck Fills

Forespar

Marelon Deck Fills

Available in 2 options

$24.76

In Stock
Fuel System Locking Cap

Perko

Fuel System Locking Cap

Available in 2 options

$44.44 - $48.90

In Stock
0553dp0 of Perko Fuel Vent Surge Protector

Perko

Fuel Vent Surge Protector

SKU: 1017030 | Item ID: PKO 0553DP0

$46.47

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
BLACK NYLON HOSE DECK FILL (BODY)

Sea-Dog Line

Hose Deck Fill - Nylon Body Only

SKU: 89103 | Item ID: SDL 357000-1

$10.74

In Stock
Image coming soon

Perko

EPA Compliant Sealed Ratcheting Chromed Scalloped Cap Straight Neck Fuel Fill - with Metallic Decal

SKU: 457665 | Item ID: PKO 0781G00STS

$71.38

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
Waste Deck Fill for Pipe

Perko

Waste Deck Fill for Pipe

Available in 2 options

$117.68 - $184.10

In Stock
Deck Fills with Slotted Caps

Sea-Dog Line

Deck Fills with Slotted Caps

Available in 4 options

$16.34 - $17.75

In Stock
Sealing Ratcheting Gas Cap with VPR - 1-1/2"

Perko

Sealing Ratcheting Gas Cap with VPR - 1-1/2"

SKU: 377570 | Item ID: PKO 0662DPG99B

$48.70

In Stock
Pipe Deck Fill

Buck Algonquin

Pipe Deck Fill - Water

Available in 2 options

$127.84 - $187.96

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

Out of Stock
1-45 results of 94

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.