Best Locking Gas Cap

The Best Locking Gas Cap in 2022 – Reviews & Buying Guide

No matter what kind of vehicle you own in the 21st Century, it is important to have the best locking gas cap. The reasoning behind this has everything to do with safety and saving you money in the long run. Unfortunately, in this day and age, there are people out there that try to get theirs without caring about others around them. So, some people will try to do the unthinkable, especially if they are desperate: siphon gasoline.

But, if you have a locking cap, then you will never have to worry, whether you leave your vehicle outside at home, work, or on the go. Still, there are a ton of options out there. Things can get tricky when you try to figure things out on your own.

However, with this guide, you will not need to fret. You have everything at your disposal to be successful and find the right cap for you and your vehicle. So, without further ado, let us hop into the product reviews, shall we?



Best Locking Gas Cap: Editor’s Top Picks


Top 10 Best Locking Gas Cap Reviews:


When it comes to products, it can be hard to decide which one is best. With the list below, you will have the top-10 products to sort through. Then, hit the buyer’s guide to round out your experience. Lastly, you will be ready to roll making the best, educated decision around.


1. Vortex GC430K Black V3 Fuel Cap

Vortex GC430K Black V3 Fuel Cap


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The first gas cap on the list comes to us from Vortex. Vortex itself has been around for more than 15 years. They are well known for making products that are top-quality specifically in the motocross world. Not only will you receive an extra-safe cap with your purchase, but you will also have a product made with the best materials as well.

To test its product, Vortez gets instant feedback from professional races on how they like their products. This one in particular has been a huge success. Since Vortex’s products are put on the hot seat day in and day out, they make sure that their products are well-designed and well-tested.

Consider this product as one of the best because of the way Vortex builds their stuff. You will rarely hear Vortex products breaking down quickly. And if they do, you will get a new product within days of the issue. Sounds like a no-brainer to us. But, what are your thoughts?


  • Super lightweight product under 1 ounce
  • Amazing customer service since the product is still in service
  • A great option for bikers
  • The thread will no cross-tread
  • Finger tabs make opening your cap a breeze
  • Cap will not loosen because of vibrations


  • Not ideal for cars
  • The silver lock needs to be taken off very carefully or you will lose parts in the process


2. Mopar 82215184 Jeep Wrangler Locking Gas Cap

Mopar 82215184 Jeep Wrangler Locking Gas Cap


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The next option for you is great if you own a Jeep Wrangler. This genuine OEM part will certainly rock your world. At only 4.8 ounces, this model is as light as they come. With a nice brushed exterior, you will like the way it looks on your vehicle.

Additionally, this is a great option if you do not have a gas cover on your Jeep Wrangler. With many of the models going in that direction, have a lock on your cap is imperative. Other Jeeps can work with this cap, too.

No matter what you decide to use for your locking gas cap, know that this option will be a very easy install. Also, know that the product is easy to use, as well. You will not have any issues trying to take the cap off after you unlocked it, like some brands out there.

Lastly, know that you will have amazing value for your money as well. This product will save you money in the long run and you will look good doing it. Give Mopar a chance to make your dreams come true.


  • Comes with a great factory key
  • Will take less than 20 minutes to install
  • Putting it together will be a breeze for you
  • Comes with a spare key
  • Easy assemble videos
  • Amazing value for the money you pay


  • The strap may break down over time
  • Installing pins will take the longest part of your install


3. Stant 10508 Locking Fuel Cap

Stant 10508 Locking Fuel Cap


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The next best locking gas cap comes to us from Stant. This cap has an amazing locking mechanism that will keep vandals and thieves at bay. Since this product is an OEM option, you can bet the safety features are out of this world. The design and materials are great as well.

So, if you are need of getting rid of your old, leaky gas cap, try this one out for size. Every 15 days, this cap will help you save more gas up to 1 gallon at a time. In just three months, this cap will pay for itself and you will be a happy camper.

Lastly, since this product is still being created by the manufacturer, you can rest assured that great customer service will flow in your wake. At only 3.84 ounces, this is one of the most lightweight caps on the market. This means your vehicle will not be weighed down during its service to you.


  • Turns and maintains a seal
  • Helps to limit fuel leakage
  • The audible click will give great cap compression
  • Fuel vapors will not exit your fuel line
  • Comes with a key for locking and unlocking


  • Installation can be difficult without reading the instructions
  • Getting the key into the lock can be a challenge


4. Motorcraft FC1004 Locking Fuel Cap

Motorcraft FC1004 Locking Fuel Cap


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The Motorcraft locking cap is a thing of beauty. By resisting corrosion and abrasion, you will have a cap that keeps issues at bay. For the best performance around, Motorcraft has you covered. From the easy install to the ultimate durability, this cap is a sight to see.

If you are looking to save a lot of money on your gas bill, updating your gas cap is a no brainer. Precious gas can go by the wayside when you do have a proper seal. So, having a cap like this will save the money you work hard for.


  • Specifically for a 3 Tab application
  • Comes with two keys in case you lose one of them
  • Only weighs 6.4 ounces
  • Amazing customer service
  • Can be shipped anywhere in the United States of America


  • Will not work with 2 Tab options
  • Does not fit all makes and models


5. ACDelco GT279 GM Orginal Equipment Fuel Tank Cap

ACDelco GM Original Equipment GT279 Fuel Tank...


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ACDelco is the next great cap to consider. For one of the tightest seals around, you can know that this cap will keep your tank closed wherever you roam in your vehicle. When your tank is sealed appropriately, vapor emissions will stay out of the environment, which is good for you and those around you.

Lost fuel is something else that will not happen with your vehicle. This means fewer trips to the gas station saving you time and money. As a GM-recommended product, this will fit any vehicle from that brand. This means you will get the quality, durability, and reliability that you deserve for your precious vehicle.


  • Barely weighs an ounce at 0.01
  • The product has not been discontinued by ACDelco
  • Comes with warranty options
  • The seal is liquid-tight
  • Very easy to install
  • Your mileage will be improved


  • Can have a small evaporation leak
  • Pretty basic when it comes to accessories


6. Gates 31836 Fuel Tank Cap

Gates 31836 Locking Fuel Tank Cap


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This fancy cap comes to you from the great country of China. The dimensions of this product are 2.72 x 6.02 x 4.41 inches. This means you will get a perfect fit for a variety of makes and models. At only 3 ounces, this cap is as lightweight as they come.

When using this cap for the very first time, turn it until you hear the fabulous click. As you turn the cap to the left, it will continue to spin until you add the key to release it from the gas tank. The key only needs to used when unlocking the cap, which will make your life a lot easier.


  • Can still receive a warranty for this product
  • Been selling this product since 2007
  • Comes with multiple keys
  • The installation is super easy
  • Lock mechanism will keep away intruders
  • Stellar value for the money you pay


  • The manufacturer has discontinued the product
  • The key can have trouble in the barrel


7. MotoRad MGC-791SK Dual Locking Fuel Cap

MotoRad MGC-791SK Locking Fuel Cap


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MotoRad has made the next great quality cap that you need to take a look at. If you have had problems with thieves siphoning out your gas, a cap like this will keep them away from your vehicle and the valuable gas inside. It is a product like this that you can trust for as long as your own your vehicle.

Across the federal government and through all 50 states, this gas cap has passed emission tests, so there will be no need to worry or fret over if your cap is legal or not. Specifically, this cap is durable because of the materials that it is made out of. Another thing you will like about this gas cap is the fact that you will be limiting pollution. If you are a fan of the environment, this gas cap is certainly for you.

With the help of venting and sealing, this cap has great emission control, making it a rock-solid option for you and your vehicle. At only 7.5 ounces, you will not need to concern yourself with being weighed down by a simple gas cap. It is a whole product like this that you can be proud of because the manufacturer has put all its marbles into its creation.


  • Fuel loss will not happen if you get into an accident
  • Comes with two fuel caps
  • The locking feature is second to none
  • Your mileage will improve with this product
  • Locking is very simple
  • Easy-to-use product


  • The quality can break down over time
  • The key needs to be in the cap to lock and unlock


8. Motorcycle Gas Tank Cap Lock Keys For Yamaha V-Star 650

Motorcycle Gas Tank Cap Lock Keys for Yamaha...


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Motorcycles gas caps as well. This alternative, from Air Wing, works with the Yamaha V-Star 650 models, as well as the Honda Rebel CMX options. Some ATVs work with this gas cap, too. With your purchase, you will receive the gas cap with lock, as well as 2 keys.

The design is something that might impress you the most though. When you are working with this model, use both hands to get the key out of the cap. By squeezing the black rubber, the key will pop out automatically. At only 7.2 ounces, this is one of the lightest gas caps to date. Also, since the manufacturer is still hard at work on this product, you can bet the customer service is exquisite.


  • The gas cap is completely vented
  • Ideal fit in your vehicle
  • Great aesthetic appeal
  • Matches original cap pieces
  • Very easy to add to your vehicle


  • Keys cannot be re-made if you lose them
  • Does not come with a warranty


9. Locking Fuel Cap For Caterpillar

Locking fuel cap 1428828 2849039 for...


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Not only do vehicles, ATVs, and motorcycles need new locking caps, but so does Caterpillar machinery. Since this equipment is extra expensive, the gas must be saved during the process. With this product, in particular, delivery time will only take a few days to get into your hands. Then, you can see why this product is so amazing.

As a brand new product, the company BUMA does its best to appease their customers. Specifically, this cap works for skid steers, wheel loaders, track loaders, multi-terrain loaders, telehandlers, tool carriers, and much more. With the best safety and performance around, give this product a close look.


  • The cap only weighs 6.5 ounces
  • Comes with a great 1-year warranty
  • Made completely of plastic
  • Works as good as the OEM options
  • Ideal fit


  • Not directly from CAT
  • The cap can come apart at the center


10. OMIX-ADA Gas Cap

Omix-Ada Omix | 17726.17 | Gas Cap, Locking |...


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Omix-Ada is the last quality brand that you need to see how good it certainly is. The OE style is one of the best in the business. The direct-fit is locking, so you will not have to worry about people trying to steal your gas during the pandemic or beyond.

One thing that stands out about this product is the fact that this cap has a 5-year warranty. This is unheard of in the cap industry. None of the products on the list can say that same thing. So, if you have any issues over the next 5 years of owning the cap, you will be completely covered.

The company has also tried to problem-solve some of the issues that people have had with their best locking gas cap, and they have had some positive results. For example, there have been some times in colder environments where the locking mechanism in the cap has frozen solid. The best way to fix this problem is by using graphite lubricants. The lubricant will melt the ice, and you will be good to go fill up, even in the harshest of environments.


  • The product only weighs 3.2 ounces
  • The exterior is a textured OE model
  • Works for Jeep Wranglers from 2003 to 2018
  • You do not have to click the cap more than once for a solid lock
  • The lock feature is one of the best in the business
  • The installation is super simple


  • The key can be hard to enter the lock
  • There is no cable to attach the gas cap to the vehicle


Things to Consider When buying Locking Gas Cap


Now that you have gone through all the great products money can buy you, it is time to hit the buying guide running. Here, you will find the best features when it comes to exceptional gas caps. This way, you will have a better idea of what a gas cap can do for you, and why you might buy one over the other.

  • Locking Mechanism

Having a cap with a lock is the main reason why people buy this product in the first place. You may have had some trouble over the last few weeks with people stealing your gas. Instead of swapping badges on your vehicle to fool the thief, trading in your vehicle for an alternative energy option, removing your gas night in and night out, you can get a cap with a lock. Sounds easier to us.

Still, there are even people out there that look to booby trap their vehicle and defend it with armor. You can do that additionally, but a locking cap fixing your problem with simplicity, and that is what you deserve when something annoying like this happens to you. So, buy an inexpensive cap model and see it work. Call the cops too if you catch the thief redhanded.

  • Environmental Help

Did you know that a locking cap can help the environment? Some of you might want to move to the attribute, but others are on board with this right away. With a quality seal, you can keep nasty emissions out of the air. Gasoline articles are already notorious for not helping planet Earth very well. So, if you can do your part in a little way, is that not important?

There are many vehicles out there that do not know that they could do their part to help ease emissions across our world. This is a small step that certainly matters. By buying a small-cap can surely make a big difference.

  • Fuel Economy

Another thing that a solid seal can do for you saves you a little dough. We all like to save money at some point in our lives, right? Well, gas can already be an expensive thing that you have to budget for. But, when you have a strong seal, you will not lose gas from the fuel tank that will leak out. Then, your fuel economy will go down and you will be back to the gas station before you know it.

Instead, buy an inexpensive cap and see it work its magic for you. This way, you can spend your well-earned money on something else to help you live your life. You deserve that!

  • Style

The style might not be the first thing you think about when a gas cap, but you might want something better than just the ordinary. Think of Jeeps for example. There are many out there that do not have a gas cap cover, so the whole world can see the gas cap.

Well, why not spice things up by getting a cool new color that matches your vehicle or one that makes things stand out. Even if people you do not want near your vehicle come to siphon some gas, they will be turned away by the lock. This sounds like a win-win to us.

  • Price

Price is something that everyone wants to think about when buying things. Some are on a budget, while others just buy what they want. If you do not care about the price, move to the next feature.

But, if you are working to keep your finances in check, then buying the right cap certainly matters to you. Well, do not sweat it. There are a variety of models out there that will not break the bank for you. This way, you can sleep easy at night knowing you made the right choice for you and your vehicle.

  • Warranty

The last feature you should consider is a warranty. Caps on this list ranged from no warranty up to 5-years. No matter what you are looking to know that adding a warranty means that you will spend a few more dollars to make it happen.

If the price is a problem, maybe the warranty is not for you. But, if you are a fan of warranties where companies replace your products if they break, then check them out for size. Sometimes, you can even add a warranty by paying extra money, instead of just buying a product with a warranty already standard with the purchase.


Benefits of Locking Gas Cap


There are certainly a few benefits to a locking gas cap. Of course, locking your vehicle for gas thieves is a great alternative to losing your gas in the first place. Next, having a cap will help your pocketbook in the long run. There are some economists out there that say you will save hundreds of dollars a year. That means the product will pay for itself in no time at all.

Saving the environment might be on your to-do list. Well, you can surely kill two birds with one stone, when you get a great locking cap like one that is on this list. The last benefit with a locking cap has everything to do with safety. If you are looking for more ways to keep you and your loved ones in your vehicle, this is a great way to make them a priority for you.

Sometimes, it can be hard to see all the benefits that come from a product. But, when you look deeper into the product, you deserve to have every feature impact your life positively. This way, you can live a happy and healthy life.


FAQs: Frequently Asked Questions


When it comes to locking caps, a lot of questions can start to arise before purchasing. But, do not worry here. We have you covered from all angles, so you can have ultimate success.

Q1: Do I need a locking cap if I have never had gas stolen before?

The short answer is no. But, the long answer makes things a little more complicated. Still, this needs to be discussed.

A few questions for you: are you willing to have this happen to you when you had the chance to keep siphoners away? Are you willing to lose money that easily? If a small purchase can make a big deal in your life, then you should do what you can to save your pocketbook and your vehicle in the process.

Thieves like to see any opening that they can. If you do not have a locking cap on your vehicle, then a thief will move ahead with their master plan. But, if you have a locking cap, then there will not be a chance to mess with you. The choice is yours.

Q2: What happens if I lose all my locking cap keys?

Well, many companies will try to make you buy another one because the keys are particular to the locking cap that you bought. There is always a chance that you reach out to the company and they might help you without buying a whole new product.

Another thing you can try is getting a locksmith to come out and see if they can unlock your cap and get you a new key. This may be an expensive route, but if you like the cap and do not want to go through added stress, this is an option. But, buying a new mechanism might be your best bet. If not, you are probably out of luck.

Q3: Are there any fingerprint reading or button-pushing gas caps?

Even though we are in the 21st Century, there are no locking caps that work like this. The only options you have at your disposal at this time involves a key. However, there is hope over the next decade that technology will make things even easier for you. So, stay tuned for what the world has for you next.

Q4: Do safety standards truly matter with a gas cap?

Maybe to you, safety standards do not matter, but you can bet the city, state, and nation you live in cares. With environmental issues on the rise globally, governments are cracking down on products that are making things worse for the environment.

So, yes, you probably need a locking cap that does its part to help out the environment. If not, you might get away with it, but your conscious might strike back. If you are caught with a faulty locking cap, then you may get fined by the authorities, putting money in a place that you do not want it to go to. So, be smart in the end.


Final Verdict

When it comes to finding the best locking gas cap, the picking process can take you more time than you might have thought at first. But, you have got this! You have gone through the best products around and a buyer’s guide to help you focus on the features that matter to you.

This way, you can use all the materials here to help you make the best decision imaginable. Then, you will be off and running in your vehicle, touring around with not a care in the world. Sounds like a good life to live. Best of luck on the road of life, and stay extra safe.

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