Best Locking Gas Tank Doors of 2025

David Davis Avatar
David Davis
Last Updated: Jan 5, 2025

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Locking gas tank doors are a simple yet effective way to protect your vehicle from fuel theft. These doors come with a locking mechanism that prevents unauthorized access to your gas tank, ensuring that your fuel stays safe and secure. Locking gas tank doors are available in a variety of styles and finishes to match your vehicle's aesthetics, and they are easy to install without any professional help. Whether you are looking to protect your car or truck from fuel theft or simply want to add an extra layer of security, locking gas tank doors are a smart investment that can save you time, money, and hassle in the long run.

At a Glance: Our Top Picks

Locking Fuel Filler Door Gas Cap Tank Cover for Hummer H2 Cover #TOP 1
Locking Fuel Filler Door Gas Cap Tank Cover for Hummer H2
ftb score rating icon 9.9
A ABIGAIL Fuel Filler Door Cover for Jeep Wrangler Cover #TOP 2
A ABIGAIL Fuel Filler Door Cover for Jeep Wrangler
ftb score rating icon 9.8
u-Box Locking Gas Cap Cover Cover #TOP 3
u-Box Locking Gas Cap Cover
ftb score rating icon 9.6

Top 10 Locking Gas Tank Doors

#TOP 1

Locking Fuel Filler Door Gas Cap Tank Cover for Hummer H2

W-220803
Silver
Locking Fuel Filler Door Gas Cap Tank Cover for Hummer H2 Cover
Silver Heavy Duty Barrel Lock Aluminum Exterior Accessories Chrome Locking Fuel Filler Door Gas Cap Tank Cover for Hummer H2 2003-2009

The Silver Heavy Duty Barrel Lock Aluminum Exterior Accessories Chrome Locking Fuel Filler Door Gas Cap Tank Cover is a high-quality accessory that fits Hummer H2 SUV & SUT Models 2003-2009. It not only adds a sporty look to your car but also provides protection to the fuel tank and prevents dust, sand, scratches, and abrasions. This fuel door is easy to install with two keys, stainless steel hardware, and installation instructions. It is machined from solid block 6061-T6 billet aluminum and triple chrome-plated for anti-wear, anti-corrosion, and deformation protection. The fuel door features a pressure-closed design that eliminates rattling and is resistant to gasoline and other harsh automotive-related chemicals.

What We Like
Easy to install
Provides protection to the fuel tank
Prevents dust, sand, scratches, and abrasions
Resistant to gasoline and other harsh automotive-related chemicals
Made of high-quality materials
#TOP 2

A ABIGAIL Fuel Filler Door Cover for Jeep Wrangler

A7006F
Black
With key
A ABIGAIL Fuel Filler Door Cover for Jeep Wrangler Cover
Fuel Filler Door Locking Gas Tank Cap Cover Compatible with 2007-2018 Jeep Wrangler JK JKU Sport Rubicon Sahara Unlimited

The A ABIGAIL Gas Cap Cover is designed specifically for 2007-2018 Jeep Wrangler models, ensuring a perfect fit. Made from high-quality stainless steel and ABS, this cover is built to resist rust and corrosion, keeping your vehicle looking great. Its stylish black powder coating enhances your Jeep's appearance, giving it a more fashionable touch. Installation is a breeze with no drilling required; simply attach it with screws for a secure fit. Enjoy the peace of mind with a 100% satisfaction guarantee, and if you encounter any issues, customer service is ready to assist you.

What We Like
High-quality materials
Easy installation
Stylish design
Fits multiple Jeep models
#TOP 3

u-Box Locking Gas Cap Cover

SH-983
black
w/Lock
u-Box Locking Gas Cap Cover Cover
TJ Wrangler Locking Gas Cap Cover Fuel Filler Tank Gas Door Compatible with 1997-2006 Jeep Wrangler TJ & LJ

The u-Box Gas Cap Cover is specifically designed for 1997-2006 Jeep Wrangler TJ models. Its secure locking mechanism ensures that your gas tank remains safe from theft and tampering, giving you peace of mind. The sleek black coat finish adds a stylish touch to your vehicle while protecting against wear and tear. Made from durable ABS plastic and aluminum alloy, this cover fits snugly over your existing gas cap opening, ensuring a tight seal. Installation is straightforward, allowing you to enhance your Jeep's functionality without hassle.

What We Like
Secure locking mechanism
Durable materials
Easy installation
Stylish design
#TOP 4

HECASA Locking Fuel Door for Hummer H2

HECASA
MO-3342
Silvery
HECASA Locking Fuel Door for Hummer H2 Cover
HECASA Locking Fuel Door Compatible with 2003-2009 Hummer H2 SUV SUT Gas Cap Tank Cover Heavy Duty Aluminum Silvery Chrome

The HECASA Fuel Door is designed specifically for 2003-2009 Hummer H2 models, ensuring a perfect fit. It enhances your vehicle's security by preventing unauthorized access to your fuel tank, protecting you from fuel theft or tampering. Crafted from high-quality aluminum, this fuel door is both strong and durable, providing long-lasting performance. Its sleek chrome finish not only looks great but also contributes to its durability. Installation is straightforward with a bolt-on design, eliminating the need for modifications, although professional help is recommended for the best results.

What We Like
Enhanced vehicle security
High-quality aluminum construction
Sleek chrome appearance
No modification needed for installation
#TOP 5

Locking Fuel Filler Tank Door Black Lock Gas Cover Cap

BHA025
black
With lock 1
Locking Fuel Filler Tank Door Black Lock Gas Cover Cap Cover
Locking Fuel Filler Tank Door Black Lock Gas Cover Cap Compatible with Jeep Wrangler 2007-2017 JK & Unlimited 2 door and 4 door , US Flag Sticker Accessories+Aluminum+ABS Accessories

Features
[Features] The Locking Fuel Gas Tank Door Is Made Of High-Quality ABS And Aluminum Alloy, Anti-Scratch, Durable, Not Easy To Rust, Corrode Or Peel. Resistant To Gasoline High Temperature And Other Hazardous Chemicals.And Long Service Life.The National Flag Sticker Is Presented, Which Can Be Attached To The Fuel Tank Cover Or Any Position Of The Car, Which Can Be Decorated And Beautified While Allowing You To Better Identify Your Car.
[Fitment] Fuel Filler Gas Door Compatible With Jeep Wrangler JK & Unlimited, 2 Door And 4 Door 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
[Service] If You Have Any Questions, You Can Contact Us Directly Through Amazon, And Our Professional Team Will Reply Within 24 Hours.
[Package] 1x Black Fuel Tank Cap Fit For Jeep Wrangler JK & Rubber Gasket & Key & 2 X Flag Stickers
[Installation] 100% Brand New And Ready To Install Straight Out Of The Box.Easy To Install Without Punching.
#TOP 6

Xprite Locking Gas Cap for Jeep Wrangler

Compatible with 2018-2023 JL JLU
With Key Latch
2007-2018 Jeep JK
Xprite Locking Gas Cap for Jeep Wrangler Cover
Xprite Locking Gas Tank Cap Cover Compatible with 2007-2018 Jeep Wrangler JK JKU Unlimited Rubicon Sahara, Off-Road Aluminum Lock Fuel Filler Door Cover, (Keys Included)

The Xprite Gas Cap Cover offers enhanced security for your Jeep Wrangler, helping to prevent fuel theft and tampering. Its stylish design, inspired by car wheel patterns, adds a unique touch to your vehicle’s gas tank. Made from high-quality materials, this cap cover is durable and resistant to corrosion, ensuring it stands up to rugged off-road conditions. Specifically engineered for the 2007-2018 Jeep Wrangler JK and JKU, it guarantees a perfect fit for your gas tank, making it a practical upgrade for your vehicle.

What We Like
Enhanced fuel security
Stylish design
Durable materials
Perfect fit for Jeep Wrangler
#TOP 7

Aukmak Fuel Filler Door Locking Gas Tank Cap Cover for Jeep Wrangler Accessories

65LO
Gas Cap Cover-LOCK
Aukmak Fuel Filler Door Locking Gas Tank Cap Cover for Jeep Wrangler Accessories Cover
Aukmak Fuel Filler Door Locking Gas Tank Cap Cover for Jeep Wrangler Accessories 2007-2018 JK Unlimited Rubicon Sahara

The Aukmak Fuel Filler Door Locking Gas Tank Cap Cover is a perfect fit for 2007-2017 Jeep Wrangler JK & Unlimited, 2-door and 4-door. The aluminum cover's surface grinding process is effective in preventing scraping, and it is long-lasting and resistant to gasoline and other hazardous chemicals. It is easy to install with no drilling or cutting required, and it creates a simple and elegant look for your Jeep Wrangler while protecting the tank inside from sand and dust. With a 365-day money-back guarantee and professional customer support, you can buy with confidence.

What We Like
Easy to install with no drilling or cutting required
Locking gas tank door for security
Long-lasting and resistant to gasoline and other hazardous chemicals
#TOP 8

RT-TCZ Fuel Filler Door Locking Gas Tank Cap Cover for Jeep Wrangler JK

Locking Black
17.5*17.5*10cm
RT-TCZ Fuel Filler Door Locking Gas Tank Cap Cover for Jeep Wrangler JK Cover
RT-TCZ Fuel Filler Door Locking Gas Tank Cap Cover Accessories for 2007-2017 Jeep Wrangler JK & Unlimited Sport Rubicon Sahara,Locking Black

The RT-TCZ Fuel Filler Door Locking Gas Tank Cap Cover is designed to fit 2007-2017 Jeep Wrangler JK 2-Door/4-Door. It is made of high-quality materials that are highly durable and resistant to rust, corrosion, and peeling. The aluminum alloy cover and black ABS bottom with lock provide double protection, ensuring the safety of the car tank room by preventing water or dust from entering. The product is easy to install, requires no drilling and has a smooth operation. It is a useful tool to protect and decorate your car.

What We Like
High-quality materials
Double protection
Easy to install
#TOP 9

JeCar Locking Gas Cap Cover for Jeep Wrangler

JC8542
gray
JeCar Locking Gas Cap Cover for Jeep Wrangler Cover
JeCar Locking Fuel Filler Cover Aluminum Gas Tank Door Exterior Accessories Compatible with Jeep Wrangler 2018-2023 JL JLU, Carbon Fiber Texture

The JeCar Gas Cap Cover is designed specifically for Jeep Wrangler models from 2018 to 2023. This locking gas cap helps protect your fuel tank from theft, providing peace of mind while you're on the road. Installation is a breeze, taking less than 30 minutes with basic tools, allowing you to enhance your vehicle quickly. The durable aluminum and ABS construction ensures stability and strength when mounted, while the high-quality black powder coat resists rust and corrosion, keeping your cover looking great over time. With JeCar's commitment to customer satisfaction, you can buy with confidence.

What We Like
Locking feature prevents theft
Easy installation under 30 minutes
Durable aluminum construction
Rust and corrosion resistant
#TOP 10

A ABIGAIL Fuel Filler Door Cover for Jeep Wrangler 2018-2023

A7005F
Black
With key
A ABIGAIL Fuel Filler Door Cover for Jeep Wrangler 2018-2023 Cover
Fuel Filler Door Locking Gas Tank Cap Cover Compatible with Jeep Wrangler 2018-2023 JL & Unlimited Gas Tank Cap Aluminum Fuel Filler Door Cover

The A ABIGAIL Gas Cap Cover is designed specifically for Jeep Wrangler models from 2018 to 2023, enhancing your vehicle's aesthetic appeal. Made from durable stainless steel and ABS, it resists rust and corrosion, ensuring longevity. The easy installation process requires no drilling, allowing you to quickly upgrade your Jeep without hassle. Plus, its non-locking mechanism offers smooth operation, making it convenient for everyday use. With this cover, you can transform your Jeep into a more stylish and attractive ride, turning heads wherever you go.

What We Like
Durable stainless steel construction
Easy installation without drilling
Rust and corrosion resistant
Enhances vehicle appearance
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Can I get a lock on my gas tank?

Yes, there is a solution to add extra security to your gas tank. If your car does not have a locking filler door, you can consider installing an aftermarket universal locking gas cap. These locking gas caps provide an additional level of security to prevent unauthorized access to your gas tank.

2. Are locking gas caps any good?

Locking fuel caps are effective in preventing fuel theft by opportunistic thieves. While they may not deter a determined thief who is willing to go to extreme measures like drilling into the gas tank, locking gas caps provide a significant deterrent to most fuel theft attempts.

3. Do gas caps help gas mileage?

Yes, gas caps play a role in maintaining fuel efficiency. Loose, damaged, or missing gas caps can result in fuel vaporizing and a reduction in fuel efficiency. In fact, about 17% of vehicles on the road have gas caps that are not properly sealed, causing a loss of approximately 147 million gallons of gas each year.

4. How many times should you click your gas cap?

When tightening your gas cap, listen for one click and stop. Overtightening the gas cap can damage the seal and may trigger your check engine light to come on. It's important to secure the gas cap properly but avoid overtightening it.

5. How much does it cost to replace a gas tank door?

The cost of replacing a gas tank door is relatively affordable. Depending on your car model, you can expect to pay around $120 to $200 for this repair. A mechanic can assess the cables and hinges and perform the replacement in under an hour.

6. How do you lock a gas cap on a car?

To lock a gas cap on your car, insert the key into the cap without turning it. Twist the cap shut onto the gas filler, still without turning the key. Once the cap is twisted into place, rotate the key to its other position and remove it. The gas cap should now be locked securely.

Editor's Notes

During our locking gas tank door research, we found 24 locking gas tank door products and shortlisted 10 quality products. We collected and analyzed 28,228 customer reviews through our big data system to write the locking gas tank doors list. We found that most customers choose locking gas tank doors with an average price of $24.05.

The locking gas tank doors are available for purchase. We have researched hundreds of brands and picked the top brands of locking gas tank doors, including Bonbo, A ABIGAIL, u-Box, HECASA, Parfyter. The seller of top 1 product has received honest feedback from 168 consumers with an average rating of 4.9.

Written by
David Davis Avatar

David Davis has rich experience as a mechanic and a general repairman in the automotive industry. It has given him plenty of knowledge in automobile repair, auto parts, and all kinds of tools. In his spare time, he enjoys assembling and disassembling parts for cars.