Updated: 17 Feb 2025

marine locking gas caps

Explore up to 29% Off

Updated: 17 Feb 2025

#1

Best Choice
Seachoice 32051 Deck Mount Gas Fill Plate with Locking Cap – Cast 316 Stainless Steel – Includes 2 Keys

9.8

SEACHOICE

-29%

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Main highlights

Locking cap marked “GAS” in red

Includes 2 keys

Fabricated of investment cast 316 stainless steel for superior corrosion resistance

-29%
#2

Value for Money
Perko 1399DP0CHR Locking Gas Fill with Black Polymer Flange and Cap for 1.5" Hose

9.7

Perko

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Main highlights

Item Package Weight - 0.55 Pounds

Item Package Dimension: 7.36L x 4.76W x 3.39H inches

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#3
Perko 1324DP1BLK Fuel System Locking Gas Cap and O-Ring for 1.5" Non-Vented Fills

9.6

Perko

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Main highlights

Two keys included

For use with 1-1/2" non-vented fills; Fits Perko Fills: 0520, 0527, 0528, 0557, 0599 and 1270

Constructed of black polymer materials
#4
Perko 1324DP0BLK Locking Gas Cap

9.3

Perko

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Main highlights

For use with 1-1/2 non-vented fills

Built-in lock cylinder

Black polymer with gasket
#5
Sukemichi Locking Gas Cap for Boat, Anti-Theft Fuel Door Cover Gas Tank Doors Locks for Polaris RZ Ranger 900 1000 XP PRO XP Sportsman, Replace for# 5433687/5435534/5450389/5439075

9.2

sukemichi

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Wide Application: Locking Gas Cap compatible with 2015-2020 Polaris RZR Ranger Sportsman 570 800 900 1000 XP Turbo S. Compatible with Most Polaris ATVs, Pontoon Boat, Rangers, and RZRs; Replace OEM Part Number: 5433687, 5435534, 5450389, 5439075

Good protection against vandals: Sukemichi locking fuel cap tank, Sturdy and easy lockin/unlocking. Unique lock cylinder anti-theft design, a lock has a unique key. Allows you to keep others out of your fuel tank. Note: Please keep your keys

(NOTE : Please check your size before buying) it fits a 2 1/4" threaded hole
#6
Perko - 1324DP1BLK FUEL LOCKING CAP

9.1

Perko

-19%

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Main highlights

Product type: Auto_Accessory

Package quantity: 1

Country of Origin: United States

-19%
#7
JHD-TOGO Locking Gas Cap for Boat, Fuel Gas Tank Cap Compatible with Polaris RZR Ranger 900 1000 XP PRO XP Sportsman Anti-Theft Boat UTV Replace for# 5433687 5435534 5450389 5439075

9.0

JHD-TOGO

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VERSATILE: The locking fuel tank cap can effectively prevent fuel theft and improve the anti-theft performance of the vehicle. You can easily open the fuel cap with the key without other tools

HIGH QUALITY: Locking gas cap replacement crafted from premium ABS plastic and rubber material, which is built to last and can adapt to harsh weather and environments.

COMPATIBLE : Fuel gas lock cap compatible with 2015-2020 Polaris RZR Ranger Sportsman 570 800 900 1000 XP Turbo S. Most Polaris ATVs, Pontoon Boat, Rangers, and RZRs. This UTV replacement fuel tank cap can replace # 5433687, 5435534, 5450389, 5439075
#8
Seachoice Replacement Gas Fill Cap, Cast Stainless Steel

8.9

SEACHOICE

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Main highlights

When open, cap is tethered by included beaded chain

High-quality replacement cap for Seachoice deck mount fill plates

Fabricated from cast stainless steel for superior corrosion resistance
#9
2"(50mm) Boat Gas/Fuel Deck Fill/Filler with Keyless Cap，2inch Stainless Steel Deck Filler Marine Hardware for Boat, Yacht, Caravan, Mirror- Polished Head

8.8

Boltigen

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Main highlights

【Size】 The boat gas deck filler is 2” (50mm)，ideal for use with 2’’ I.D. fill hose. This size is commonly used in marine applications and come with stainless steel retaining chain, to avoid losing or misplacing cap.

【Material】 The gas boat deck filler is constructed from stainless steel, known for its exceptional corrosion resistance and durability. It ensures a long lifespan, even when exposed to harsh marine environments, preventing rust and deterioration caused by saltwater and UV exposure.

【Design】The keyless cap design of the deck filler allows for convenient and secure fill access without the need for a separate key. This feature is particularly advantageous in boating situations where quick and easy refilling is required. The secure locking mechanism on the cap minimizes the risk of accidental fuel spillage or contamination.
#10
The Flow Security Systems Non-Vented Locking Fuel Tank Cap | For Transfer Tanks & Above Ground Commercial Tanks | Prevents Theft & Fuel Vandalism | Secures Fuel Tanks | FSS 376M | Male 2" Std Thead

8.7

Flow Security Systems

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Why we love it

Heavy-duty locking cap prevents fuel theft.

Retaining chain prevents loss during refueling.

Easy installation and secure locking mechanism.

Main highlights

Heavy Duty Locking Cap
Heavy duty locking cap with a 10-inch retaining chain to prevent loss, seals vented tanks, and helps prevent fuel theft.

Ideal for Securing Fuel Tanks
Perfect for securing diesel fuel tanks to prevent tampering and theft, ensuring peace of mind for users.

Praised for Quality and Ease of Use
Customers appreciate the high-quality construction, ease of installation, and the ability to lock the cap securely.

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marine locking gas caps

Seachoice 32051 Deck Mount Gas Fill Plate with Locking Cap – Cast 316 Stainless Steel – Includes 2 Keys

9.8

Main highlights

Perko 1399DP0CHR Locking Gas Fill with Black Polymer Flange and Cap for 1.5" Hose

9.7

Main highlights

Perko 1324DP1BLK Fuel System Locking Gas Cap and O-Ring for 1.5" Non-Vented Fills

9.6

Main highlights

Perko 1324DP0BLK Locking Gas Cap

9.3

Main highlights

Sukemichi Locking Gas Cap for Boat, Anti-Theft Fuel Door Cover Gas Tank Doors Locks for Polaris RZ Ranger 900 1000 XP PRO XP Sportsman, Replace for# 5433687/5435534/5450389/5439075

9.2

Main highlights

Perko - 1324DP1BLK FUEL LOCKING CAP

9.1

Main highlights

JHD-TOGO Locking Gas Cap for Boat, Fuel Gas Tank Cap Compatible with Polaris RZR Ranger 900 1000 XP PRO XP Sportsman Anti-Theft Boat UTV Replace for# 5433687 5435534 5450389 5439075

9.0

Main highlights

Seachoice Replacement Gas Fill Cap, Cast Stainless Steel

8.9

Main highlights

2"(50mm) Boat Gas/Fuel Deck Fill/Filler with Keyless Cap，2inch Stainless Steel Deck Filler Marine Hardware for Boat, Yacht, Caravan, Mirror- Polished Head

8.8

Main highlights

The Flow Security Systems Non-Vented Locking Fuel Tank Cap | For Transfer Tanks & Above Ground Commercial Tanks | Prevents Theft & Fuel Vandalism | Secures Fuel Tanks | FSS 376M | Male 2" Std Thead

8.7

Why we love it

Main highlights

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