Boat Deck Fills, Gas Caps & Tank Keys

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

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
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
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
ssdf66124 of Marine Hardware Deck Fill - Toggle Cap

Marine Hardware

Deck Fill - Toggle Cap

Available in 4 options

$58.84

In Stock
Image coming soon

Sea-Dog Line

Sea-Dog Replacement Deck Fill Caps

Available in 4 options

$8.94

In Stock
Replacement Raised Cap Deck Fill Caps

Perko

Replacement Raised Cap Deck Fill Caps

Available in 2 options

$36.22 - $61.74

Out of 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
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
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
Combination Gas Fill & Tank Vent

Perko

1319 Vented Straight Neck Deck Fill - 1-1/2" Hose

Available in 2 options

$35.90

In 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
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
O-RING ONLY F/00PDP200

Buck Algonquin

Pipe Deck Fill - Replacement O-Ring

SKU: 157346 | Item ID: B/A ORING200

$4.61

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
ALUMINUM FLIP TOP GAS FILL

Sea-Dog Line

Flip Top Gas Fill - Cast Aluminum

SKU: 206371 | Item ID: SDL 351800

$29.82

In Stock
Image coming soon

Sea-Dog Line

Angled Hose Deck Fill

Available in 7 options

$27.26 - $49.85

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
Flip Top Gas Fill

Sea-Dog Line

Flip Top Gas Fill - Investment Cast Stainless

Available in 2 options

$62.26 - $68.04

In Stock
Deck Plate Fill Key

Sea-Dog Line

Deck Plate Fill Key

Available in 2 options

$2.68 - $5.51

In Stock
SS GAS DECK FILL W/KEY 1-1/2IN BARB

Sea-Dog Line

Hose Deck Fill With Key

Available in 2 options

$41.28

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
Image coming soon

Perko

Perko Replacement Caps for Flush Style Deck Fills

Available in 11 options

$57.68 - $241.38

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
0553dp0 of Perko Fuel Vent Surge Protector

Perko

Fuel Vent Surge Protector

SKU: 1017030 | Item ID: PKO 0553DP0

$46.47

In Stock
Fuel Fill with Locking Cap

Perko

Fuel Fill with Locking Cap

Available in 2 options

$89.20 - $93.66

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
Image coming soon

Perko

EPA Compliant Sealed Ratcheting Cap Fill for 1-1/2" Hose

SKU: 456431 | Item ID: PKO 0663G00BLK

$53.34

In Stock
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
Stainless Deck Fills

Vetus

Stainless Deck Fills

Available in 4 options

$90.00 - $109.00

Out of Stock
deck fill cap

Attwood

Replacement Deck Fill Cap & Chain

SKU: 63209 | Item ID: ATT 66074-3

$29.02

In Stock
Image coming soon

Perko

EPA Sealed Ratcheting Chrome Cap Fuel Fill w/ Pressure Relief Valve

SKU: 456430 | Item ID: PKO 0660DPGCHR

$120.78

In Stock
EPA Compliant Sealed Replacement Cap with VPR

Perko

EPA Compliant Sealed Replacement Cap with VPR

SKU: 1036540 | Item ID: PKO 0660DPG99A

$84.27

In Stock
Marelon® Deck Fills

Forespar

Marelon Deck Fills

Available in 2 options

$24.76

In Stock
357390 of Sea-Dog Line Emergency Deck Fill Plug - Bulks

Sea-Dog Line

Emergency Deck Fill Plug - Bulk

SKU: 1022856 | Item ID: SDL 357390

$10.12

In Stock
Waste Deck Fill for Hose

Perko

Waste Deck Fill or Replacement Cap

Available in 2 options

$17.60 - $56.82

In Stock
1429 of Perko Flip Top Cap Fills

Perko

Flip Top Cap Fills

SKU: 456221 | Item ID: PKO 1429G00BLK

$39.10

In Stock
Image coming soon

Perko

EPA Sealed Ratcheting Chromed Scalloped Cap Straight Neck Fuel Fill

Available in 2 options

$91.62 - $102.79

In Stock
dpa4 of Beckson Beckson DPA-4 Deck Plate Key

Beckson

Beckson DPA-4 Deck Plate Key

SKU: 389882 | Item ID: BEC DPA-4

$8.73

Special Order Only
Whitecap Deck Fills

Whitecap Industries

Whitecap Deck Fills

Available in 5 options

$54.16 - $77.72

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
Waste Deck Fill for Pipe

Perko

Waste Deck Fill for Pipe

Available in 2 options

$117.68 - $184.10

In Stock
SPARE BLK MOUNTING RING F/FILLS

Perko

Replacement Mounting Ring for Vented Deck Fills

SKU: 96454 | Item ID: PKO 0540DPRBLK

$11.38

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
0791 of Perko EPA Straight Gas Fill

Perko

EPA Straight Gas Fill

SKU: 1003522 | Item ID: PKO 0791DPGCHR

$141.56

In Stock
Deck Fill

Vetus

Deck Fill

Available in 4 options

$51.82 - $70.69

Special Order Only
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.