Smartrving is reader-supported. When you buy via our links, we may earn a commission at no cost to you. Learn more

The Best RV AC Gasket

Are you looking for the best RV AC gasket? If so, you have bumped into the right buying guide outlining the top picks in the category and the things to look for when shopping around for this item.

By choosing the right one, you can prevent leaks that prove valuable when driving your RV. With it, you can drive your mobile home without thinking about this issue because the gasket can offer sealing and watertight protection due to a leaky roof seal.

In addition, it can offer better support to your air con while also keeping it in position when driving your recreational vehicle. Also, this item can offer protection to your RV air conditioner because it can keep it from the bumps and vibrations on the road. If you’re ready, let’s get started and help you pick the right roof AC gasket for you.

Table of Contents

Best RV AC Gaskets

1. Camco 25071 Universal Gasket Kit

  • It is very easy to install
  • Made to be a universal fit for any RV roof air conditioner units
  • Provides a waterproof compression seal
  • Made of good quality for a long-term use
  • Inexpensive yet highly reliable
  • Not as thick as the other gaskets

If you are looking for a new gasket to replace the old one in your RV roof AC, the Camco 25071 universal gasket kit is the best option for you.

The RV air conditioner gasket is affordable and one of the inexpensive gaskets in the market. This one is made to fit most of the RV roof air conditioner units.

This gasket is not too thick but not too thin either and very reliable. It measures 14 inches by 14 inches in the inner frame with leveling pads of just the right dimensions.

For something inexpensive, this product is made of good quality and designed to last for a long time. It is highly reliable and worth your every penny.

Another thing I like about this gasket is that it is made to endure all kinds of weather. If you have this installed in your RV’s roof AC, you wouldn’t have to worry about any leakage during heavy rainfall.

This gasket provides a waterproof compression seal that will last for years. It will ensure that all gaps are close around your AC.

Installation is very easy as well. Just make sure that you remove all the residues from your previous gasket first and clean the surface before attaching this one.

What is good about this product is that it has a universal fit. It can be used in any RV air condition units without hassle.

On the downside, this gasket is not as thick as the other gaskets are. Regardless of its thickness, or the lack of it, this gasket still works just fine. The seal is secure and that is the most important thing in this product. Camco universal roof AC gasket kit is highly recommended for RVs.

2. Ventmate 65526 Gasket Kit

  • High quality
  • Lasts long and very reliable
  • Water resistant
  • Simple and easy to install
  • Thick enough and quite dense, good fit for Coleman air conditioner unit
  • Expensive

If you are looking for the perfect gasket for your Coleman air conditioner unit, you must try the Ventmate 65526 Gasket Kit.

This gasket measures 14 inches by 14 inches. It is thick enough to seal the gaps surrounding your AC perfectly good.

This product is available in different sizes depending on the year and the model of the AC unit you have installed in your RV. The best way to ensure that you have the right size, remove the AC unit first to measure the hole. In that way, you will get the right size for the gaskets.

For the installation, you have to remove the inside grill first. Then you go after the bolts tightening the unit. Take all four bolts off and go to the roof of the RV.

From there, you have to lift up the air conditioner unit from the roof and set it aside for a while. Peel off the old gasket and clean the mating surfaces. This way, the adhesive you will use will last longer and attached deeper.

You have to make sure that all residues from the old gasket are gone and the surface clean before installing this Ventmate gasket. Then set the unit right back on then secured it from the inside afterwards. Just like that. It is an easy and simple installation.

What’s good about this one is that it is quite dense and durable. It is a perfect fit to any other Coleman gasket kit and sealed longer than the others do.

What is more? It is also water resistant. No rainwater will have it way inside your RV once you have this gasket installed in your RV.

On the downside, this gasket comes a little expensive compare to the other products with the same function. However, regardless of its price, this product is everything you need to remedy the leak in your RV’s AC. It lasts longer than expected therefore it is highly recommended.

3. Dometic 3310718.006 Air Conditioner Mounting Gasket

  • Can fit standard Dometic AC units
  • Durable and quality materials
  • Easy to install and use
  • Ideal for boat owners and RV owners
  • Can deal with the changing weather conditions
  • Limited compatibility

If you’re looking for an RV air conditioner seal, you might want to check out the DOMETIC product that works effectively in preventing leaks and reducing the vibrations that your AC will receive while you’re driving your recreational vehicle. It is a valuable investment that you need to check on if you want to protect your precious AC from damage.

Traveling aboard your recreational vehicle or boat is rewarding because it can help you be close to nature. It also gives you the time to unwind and loosen up from the stresses that you encounter in your life. However, some appliances, such as the AC is sensitive that it can be damaged with bumps and rough road conditions. For this reason, it pays off to have a gasket that will provide sealing and support to the AC.

This air conditioner gasket is a decent pick because it is effective in protecting your RV air con from damage due to varying road conditions.

It can also work to seal around the unit so that cool air will not escape. In this case, you don’t have to worry about losing money in the process. You can save on energy cost investing on a good AC seal like the Dometic 3310718.006.

In addition, this AC gasket is ideal for marine and RV use and is made to deal with outdoor conditions. In this case, you can rest assured that you’re using a long-lasting product that won’t waste your money in the process.

On the cons, it has limited compatibility, though. But overall, this product is a great choice for its easy installation and ruggedness to deal with the changing weather conditions. It is also ideal for use in boats and mobile homes.

4. Leisure Time Marketing, Inc. 15068

  • Universal and compatible for different air conditioners
  • Easy to set up
  • Can provide ample support for the AC unit
  • Can help in reducing leaks
  • A good replacement for a damaged roof seal
  • Can be tricky to install for first timers

This product is a versatile AC gasket for use in mobile homes and boats. I also liked that it’s useful for trucks and campers. Outdoor enthusiasts, RV people, boat owners and even truck drivers love it. Definitely, it’s worth considering if you like a versatile AC gasket that works effectively for a wide range of applications.

The Leisure Time Marketing air con gasket is for adventure and freedom loving people with the desire of staying sway aboard their mobile homes. This item is known for its ruggedness to deal with the changing conditions and outdoor situations. Choosing it, you can rest assured that you will be using a long-term use product that you can rely on.

It can make mobile living easy and convenient. You can count on its support for the air conditioning unit that is sensitive and delicate to bumps and rough road conditions. The Leisure Time Marketing, Inc. 15068 can help in protecting your appliance from damage due to driving and bumpy roads.

In addition, this product can help in reducing and preventing leaks, which is one of the reasons that people buy it. Also, you can say goodbye to leaks because it is watertight. It can also keep water from coming though.

On the downside, it can be tricky to install for first timers, though. But overall, you can rely on its durability and functionality. It can be used as a good replacement for a leaking roof seal. You might want to consider it for yourself if you are looking for a quality and valuable RV AC gasket that you can count on to work for a longer time.

5. Coleman Gasket Kit

  • Watertight
  • Durable
  • Lightweight
  • Lasts for years
  • 90-day warranty
  • Some parts are missing in the kit

Air conditioner gaskets are important to protect your air conditioner from leakage and other damages. If the air conditioning in your recreational vehicle, boat and home is leaking, then it is an indication that you need to replace your air conditioner’s rooftop gasket that is known to seal and protect the unit.

Once your gasket is left for years, it becomes hard, brittle and it becomes difficult to seal the gasket’s opening. This prevents moisture to enter your RV, boat or home. If you are having issues with your gasket, then it is time to replace it with a trusted gasket in the market.

One of the RV AC seal kits in the market is the Coleman A/C Unit. It is an air conditioner installation gasket kit. The corners of this gasket are already sealed, this is to make sure that it is watertight and no leakage will happen.

The Coleman A/C Unit Gasket can fit the standard roof cutout of 14″ x 14″. With a white exterior, it will match very well with your RV, boat or home. It is lightweight, as it only weighs around 1 lb.

Say goodbye to leakage as this watertight and sealed gasket prevents any water from coming through. You can be assured that the product will live up to its quality even during the harshest weather condition.

Coleman is one of the most trusted brands in the market, ensuring that you are in safe hands. The Coleman A/C Unit Gasket Kit comes with a 90-day warranty.

On the downside, some customers stated that they did not receive all the parts that should come with the kit. Nevertheless, the Coleman Gasket Kit is perfect for any home, RV and boat with a 14 x 14 inches roof cutout.

6. Valterra Air Conditioning Seal

  • Can withstand harsh weather conditions
  • Lightweight
  • Easy to install
  • Elegant white color
  • One-year warranty
  • Difficult to contact their customer service department

When you air conditioner leaks, it can ruin a long-awaited road trip and it could mess up your RV. Good thing Valterra White Air Conditioning Seal comes with a self-adhesive foam strip that can easily seal and replace a brittle, damaged and broken gasket that is placed around your unit.

The air conditioning seal can help keep the moisture from your air conditioning unit from leaking into your vehicle. The air conditioning seal can fit on a 14-inch square opening.

You no longer have to worry about your RV especially during the rainy season as the Valterra White Air Conditioning Seal blocks out outside debris, rain, and even your air conditioning’s condensation.

The sealing foam of the AC gasket can help keep the moisture from accumulating and leaking into the interior of your RV. It is also very easy to install, you can remove the adhesive backing and you can place it around the air conditioner opening on your RV’s roof.

With its elegant white color, the Valterra White Air Conditioning Seal is perfect for any RV. It also has durable foam that is 3/4 inches thick, so you are rest assured that your air conditioning seal would last for years.

The overall application of this product is 14-inches long and 14-inches wide, thus making it perfect for an opening in your RV’s roof.

Valterra has been in the industry for years and they have products that you can trust. Their air conditioning seal comes with a one-year warranty.

On the downside, some customers stated that they had difficulty in calling the company’s customer service department. Valterra has an email address and you can send your concern and questions directly to their headquarters.

The Valterra Air Conditioning Seal is perfect for those who love to go on road trips as it prevents any leakage no matter what the weather is and no matter the type of environment that you are in.

7. Ventmate Gasket Kit

  • Pre-coated
  • Lightweight
  • Easy to install
  • Made from high-quality material
  • Watertight
  • Does not come with a warranty

The Ventmate Gasket Kit is one of the best in the market, and it is the leader in air conditioner gaskets in vehicles. The gasket set can replace 90% of the other gaskets in the market, no matter what kind of model your RV is.

The Ventmate Gasket Kit is made from molded rubber, so they clamp fast and evenly all across the gasket area of your RV. This means that you are ensured that there are no leaks no matter how heavy the rain gets.

Perfect for 14 x 16-inch gasket area, the corners of this gasket kit is already sealed to make sure that it is watertight. This gasket kit can withstand harsh weather conditions.

The Ventmate roof gasket kit it is made with the highest quality materials, so rest assured it will last for years.

The Gasket Kit has head gaskets that are made from multi-layer steel. It is made perfectly, it includes some dowel pins, and it is riveted in order to allow a defect-free seal. The kit is also pre-coated, and it comes with a tough, blue gasket sealant.

To make sure that your car does not over-torque, the Ventmate Gasket Kit has gromments, and it is equipped with other amazing features that will give you the peace of mind and reliability that you need.

The Ventmate Gasket Kit is one of the best in the market, with positive reviews from customers. If you are having issues with leakage, this kit is for you.

The only drawback is that this product does not come with a warranty. Although almost all of the feedback on this product is positive, it is still better to have an assurance that you will get a product if ever the one that you get is defective.

Why You Should Trust Us

Trusting, you can make an informed decision because our team uses a system in conducting the reviews and looking into the factors to consider when picking an AC gasket. As while many of these are on the market, not all of them are reliable in terms of heavy-duty performance and quality.

For this reason, it pays off to exert some effort and time in comparing your choices, but it can be hard to do if you don’t have any idea on what makes this product good. With that said, you might not be able to pick the right AC gasket that works for your needs.

But choosing to trust us, you can rest assured that you’re making a good decision. At first, our team determines the things to check when comparing different products in the category. From there, we research and find the top picks that possess the features that matter in an AC gasket.

We do hope that you can make an informed decision after reading this buying guide. Choose and buy an AC gasket kit today!

What Is An RV AC Gasket/ How Does It Work


Rainy seasons are a crucial time for RV owners as it’s a common time for leakages to occur, especially after a heavy downfall.

Gaskets are used to prevent such leakages. They are made out of various materials like metal, foam, copper, rubber, paper, cork, and any other bendable, sturdy material.

Also known as seals, they are usually used to prevent leaks and sometimes, ease the friction between two objects. Depending on the material used, they can be applied in a number of machines.

Basically, gaskets, such as an RV air conditioner gasket replacement, are placed to cover the gaps between two irregular components. These components can be either moving or stationary.

Three principal forces act upon the gasket. The first is the compressive load that acts to compress the gasket. This force must be sufficient in order for the gasket to “flow” and fit into the ridges and grooves of each component. This will create a tighter and more compact seal.

The next force is the hydrostatic end-force that offsets the initial force on the gasket. As a result, the load on the gasket will be reduced while still maintaining some residual load.

The last force is the internal pressure. The gasket’s material must be sturdy enough to withstand the pressure and temperature exerted by the components.

When all three forces are sufficient, the seal formed by the gasket is maintained despite movement, temperature fluctuations, and the presence of other fluids, chemicals and oils.

However, the gasket naturally loosens overtime due to the constant travelling. As a result, leaks happen. When such occurs, it is important to replace it immediately to prevent damaging your RV.

Types Of RV AC Gaskets


Gaskets can be categorized numerous ways. In terms of material, there are three types.

First, there is the metallic gasket and are of course, made out of various metals. These gaskets are sturdy and can withstand high temperatures and pressures. However, they are rigid and require more force to form the seal.

The semi-metallic gaskets are a combination of metals and non-metals. They are usually made out of copper, aluminum, stainless steel, nickel, brass and other metals combined with soft fillers like rubber and plastic. With this, these types are both flexible and sturdy.

Due to their composition, they are quite popular and are used in low to high temperatures and pressures.

The last type is the non-metallic gaskets, which are made from materials like elastomers, flexible graphite, Teflon and the like. They are extremely pliable and are used in low pressure and temperature applications.

Popular types include the rubber and silicon versions. Both of these types are durable, effective and versatile.

In terms of construction, there are four gasket types.

First, there is the jacketed gasket. It is made out of a combination of metals and non-metals. As such, it is quite durable and at the same time, pliable.

Jacketed gaskets in the market range from single-jacket, double-jacket, corrugated, and French style jackets.

Second type is the solid gaskets that are made out of metals. Because of this, they are quite sturdy and have high resistance levels to extreme heat and pressure. However, they require a greater amount of force to seal.

Third type is the spiral wound gaskets and is under the semi-metallic category. They have a winding shape that results into a high resistance to temperature and pressure while also maintaining its flexibility.

The last type is the Kamm or Cam profile gaskets. It is made out of a corrugated metal core that is covered by a sealing material. Because of its design, it’s quite pliable while also being durable.

Benefits Of Using RV AC Gaskets

Knowing the advantages of a product is essential knowledge for a buyer. With this, you will know what to expect from the product and its performance as well as assess if it can meet your needs. Like all products, an RV air conditioner gasket, such as a Due Therm RV air conditioner gasket, has its benefits. This section will list all of these accordingly.

Prevents Leaks

One of the main advantages of using a gasket is to seal leaks and prevent the ingress of fluids even at high temperatures or extreme pressures. With this, you get to drive your RV or motorhome without worrying about any leaks.

For best results, it’s best to use a rubber gasket or one made of similar material. Rubbers are effective in stopping liquid flows and some types can even deal with harsh chemicals.

Offers Support

A gasket also offers better support to your air conditioning unit and keeps it in place. Moreover, it also protects the air conditioner from vibrations and from the bumps and travels of the road that can damage it.

With this, you are assured that the air conditioning unit stays in place and protected throughout your whole journey.


Gaskets are made out of high-quality material and are thoroughly tested by its manufacturers. As such, they are quite durable and have a long lifespan.

Look for one with all the necessary certificates and stamps. With this, you will know that the product has sufficiently passed the standards.

Generally, most gaskets can withstand various weather conditions like rain, snow, and the like. Depending on their material, some gaskets can even resist certain gases and corrosive fluids and some can even withstand high temperature and pressure levels.

Protects your appliances

Gaskets are basically mechanical seals and work to prevent any leaks from seeping in your RV home. As such, you prevent damaging your RV’s interior as well as the appliances inside.

How We Picked


A RV air conditioner gasket is considered as an essential in your RV home, especially during rainy seasons. With this, you would not have to worry about leakages and instead, enjoy your trip to the fullest.

As such, RV air conditioner gaskets are a great investment. Due to their popularity, there are a lot of models and units available. As such, it might be overwhelming and difficult to look for one, especially when you are a beginner.

However, you don’t need to worry. To help you out, here are some important factors to keep in mind while you are in the market.

Type of Material

Gaskets are made out of a variety of materials. They are usually classified as metallic, nonmetallic and semi-metallic and each offer their own advantages and disadvantages.

It’s important to look at the type of material your gasket is made from. For one, you will get a general idea of how long the gasket can last. Two, purchasing the wrong material might affect the overall performance of the gasket, which might lead to more problems.

For example, metallic gaskets are strong and durable. However, they are prone to rusting. Nonmetallic gaskets are great since they’re pliable and bendable, but they easily erode overtime. On the other hand, semi-metallic gaskets are a combination of metals and nonmetals but again, you have to be mindful of dust and rust.

When it comes to choosing gaskets, don’t be afraid to ask your local supplier or salesperson for help. You can also always do your own research by perusing articles, blogs, forums and the like. You can also ask your friends in the RV community for advice and help in choosing the best gasket material.


The type of material you use will greatly affect its durability. Again, don’t be afraid to approach your local supplier or other RV homeowners for advice.

Regardless of the type of material, ensure that the gasket is waterproof and can withstand certain levels of pressure and temperature. You can know this by checking whether the product has passed all the necessary test procedures and has all the certificates thereof.


When it comes to gasket shopping, the brand or the manufacturer matters. Look for trusted manufacturers since they produce the most reliable and effective gaskets in the market.

Trusted manufacturers are usually those who have been in the business for a long time. You can also fellow RV homeowners on who their preferred companies are.


Another important factor to consider is the installation of the gasket. Keep in mind that a gasket should be properly installed to obtain its full benefits. Otherwise, you are just setting yourself for disaster. Not only will you hamper the gasket’s performance but also you will also potentially damage your RV.

It’s best if your gasket comes with an instruction manual to help you out in the process. If there is none, the gasket must be designed in such a way that allows you to design it without any hitches.

Of course, you can always ask for professional help if you are completely unsure.


A gasket should be cleaned and maintained regularly to increase its longevity. Make sure to check on it before and after your journey. It’s also best to check on the gasket after every heavy rain or storm and see if it needs repairs.

First, inspect and see if the gasket is still properly in place. Next, look for any signs of leaks or damages and replace it whenever necessary.

You should also replace your gasket regularly. You should not let it reach the point of brittleness, as it will be difficult to take the gasket. Not to mention, it might damage your RV or portable air conditioner.

Frequently Asked Questions

Q: What are the most popular RV AC gasket brands?

A: Some of the most popular brands include Valterra, Ventmate, Coleman and Dometic, to name some. They are proven and trusted in the quality of their products. You might want to check out one of their top offers to ensure that you’re buying a good and reliable AC gasket.

Q: How to install RV air conditioner gasket?

A: Remove the old gasket and replace it with the new AC gasket. Once removed, you can place the new gasket over the roof’s opening.

Position your AC over the AC gasket, and then reconnect that using a reverse order. Then, you canst start reconnecting the harness or using wire nuts in order to join the wires. Finally, you must reattach the shroud before testing the unit.

But you can also contact a specialist if you’re not comfortable or familiar in the replacement or installation for help. One can help in the installation, repair or replacement and perform maintenance work on the AC. For specific instructions, you can also refer to the RV air conditioner seal replacement procedures in the user manual.

Q: How to maintain & care/clean?

A: To perform maintenance and cleaning work, you should refer to the user manual for caring and cleaning your RV AC gasket. It outlines the steps and procedures on how to care and clean the specific cleaning and caring instructions.

Q: Where to buy?              

A: You can buy an AC gasket in RV supplies stores in your community or online. But for a wide selection of these products, you can also go to EBay or For example, offers a wide selection, affordable prices and finest brands. You might want to proceed to this large online marketplace for RV products.


Hoping you’ll be able to pick the best RV AC gasket using this buying guide outlining the top picks in the category as well as the factors to consider when shopping around for this item. Finding the right one for your needs, you can take advantage of leak prevention and support from such product. Get started in choosing the right AC gasket using today!


4.9/5 - (17 votes)