Best Swamp Cooler Motor [Buying Guide 2021]

In search of the best swamp cooler motor to replace your previous one? You’re on the right page because we have a lot to share in this regard.

Buying a swamp cooler motor is a task of its own. There are so many models available in the market that you can never know which one is the right choice.

You need to take a number of factors into consideration and that is where we come in.

Best Swamp Cooler Motor

Through this buyer’s guide, we will provide you all the information you need to make a wise decision. Take a look at the following choices and see if something fits your requirements.

Swamp Cooler MotorPowerRPM
Century SVB20541/2-1/6 HP1725/1140 Check Price
Dial 22041/2 HP1725 Check Price
A.O. Smith VB20341/3 HP1725 Check Price
Port A Cool MOTOR-012-04E1/2 HP2200 Check Price
Dial 25481/2 HP1800 Check Price

1. Century SVB2054 Flat Shaft Evaporative Cooler Motor

Century Evaporative Cooler Motor

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The very first swamp cooler motor we would like to give you information on is the Century SVB2054 flat shaft evaporative cooler motor.

It is one of the most powerful and popular swamp cooler motors because of its highly efficient performance and cooling mechanism.

For someone who wants to run their swamp coolers for hours without damaging the integrity of their motor is really going to be thrilled with this choice.

Century is one of the top names that come to our minds whenever we think about investing in a high-end motor for a cooler.

The brand takes pride in manufacturing high-quality products that come backed with incredible warranties.

The overall performance of this bad boy is epic. With premium construction quality and a solid cooling system, the motor can last for up to 10-years or more.

Century is so confident about their products that they have even backed it up by a 10-year warranty.

During this time period, if anytime you feel the motor is malfunctioning, you can always have it replaced without paying any extra money.

High Efficiency

When it comes to swamp coolers, what we need most is high efficiency from the motors when they run.

If your motor isn’t performing well, doesn’t have a good RPM and the torque isn’t sufficient, then your cooler will collapse sooner than you expect.

This is where the Century SVB2054 evaporative motor comes into play. It has 1725/1140RPM and runs at 1.6HP.

The torque is enough for swamp coolers whereas the RPM is ideal for small coolers. We won’t expect this motor to work well with heavy-duty motors though. You will have to look for better torque in that case.

Construction Quality

The next thing in line is obviously the construction quality. No cooler motor can ever be reviewed thoroughly if we don’t talk about the manufacturing aspect.

It’s imperative that you go over the construction quality of the motor you’re probably going to buy over and over again. If you find even the slightest glitch, don’t buy that motor at all.

The Century SVB2054 is built out of the highest quality alloy and can easily resist high temperatures. The brand has also given a 10-year warranty where the construction quality is concerned.

If any time you fear the motor might be malfunctioning, get in touch with the manufacturer ASAP.

Incredible Cooling System

This is an air compressor motor that comes with multiple heat dissipation holes. It allows the motor to quickly release heat even when it’s running so the motor never heats up.

We really appreciate this feature of the Century SVB2054 motor because it enhances the overall lifespan of the unit.

Final Verdict:

The Century SVB2054 cooler motor is a commendable choice for its enigmatic build quality and great performance efficiency. If you’re in search of a high-end motor, go for this one. You won’t find anything better.

  • Runs smooth and quiet
  • Great performance efficiency
  • Commendable cooling system
  • Easy to install
  • Shorter dimensions

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2. Dial 2204 1/2 HP 115- Volt Evaporative Cooler Motor

Dial Manufacturing Cooler Motor

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Next up we have the Dial 2-Speed 1/2Hp evaporative cooler motor. If you’re looking for a swamp cooler motor that offers dual-speed, then we have just found the right choice for you.

The Dial is a popular name when it comes to finding spare parts for coolers and air conditioners. Their motors are known for being highly resilient and efficient, plus their lifespans are longer than one can hope.

Not to mention, the Dial 2204 is by far one of the most inexpensive dual-speed motors that we have come across.

It is not going to break your bank account. You can absolutely rely on this bad boy because it is going to last for a very long time.

Protection Against Overheating

As we have mentioned before, one of the biggest concerns of a buyer is to find a swamp cooler motor that won’t cripple just because the heat was too much to handle.

This is why even our previous recommendation can have a cooling mechanism and so does this one.

The Dial has integrated this motor with thermal overload which provides optimal protection against overheating.

Anytime, the motor crosses its determined threshold for heat, the thermal overload will kick in and cool it down. This way, your motor will continue to work and you won’t have to switch it off to give it a rest.

Solid Construction

The next thing to consider is obviously the construction quality. We all know the durability of a product makes or breaks the purchase.

Especially, when you’re buying a motor, you obviously cannot look over the fact whether it’s durable and reliable or not.

The Dial has infused the stainless steel motor with corrosion-resistant capabilities to enhance its overall lifespan. Even after years of use, it is guaranteed the motor will not get rusty even to the slightest.

It can clearly resist moisture without getting damaged and the lifespan will remain intact.

Easy to install

What’s more? If you happen to be someone who doesn’t like to entertain the idea of hiring someone to have the motor integrated, then Dial 2-Speed evaporative cooler motor is for you.

The easy-to-access connectors of the motor make installation very convenient. It comes with a detailed user manual that you can go through.

The guide will give you all the information you need to integrate the motor without spending any extra bucks.

Final Verdict:

Bottom line, the Dial 2204 cooler motor is an enigmatic choice given its high-torque and two-speed options.

It is a great choice for swamp coolers and any DIYer will be able to have it installed within minutes. Not to mention, the motor is reasonably priced.

  • Thermal overload feature
  • Solid construction
  • 5-year warranty
  • Ease of installation
  • It might burnt up quickly

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3. A.O. Smith VB2034 Evaporative Cooler Motor

A.O. Smith Cooler Motor

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A.O Smith is a well-known brand that offers a ton of options for the finest swamp cooler motor.

If you’re looking for a mid-torque option that can fulfill all your requirements for a small to medium-sized cooler, then maybe this next choice will offer the features you are looking for.

Evaporative cooler motors are very hard to find. We know there are tons of models available in the market but you need to know, not every model will give you the features you are looking for.

When we chose the A.O. Smith VB2034 evaporative cooler motor as a potential choice for you guys, we made sure to look thoroughly into the specs and features of this model so you won’t be disappointed.

The overall size and weight of this unit are pretty minimal. You will not have any trouble with regard to the installation. Not to mention, its cooling mechanism drastically increases its lifespan.

Commendable Power

The most important aspect of any motor is how much power it can provide to the cooler. The A.O. Smith VB2034 offers 1.3HP of power with an RPM rate of 1725.

It works great for small to medium-sized coolers. Most people have small-sized swamp coolers at home and this motor is ideal for them.

However, if you happen to own a larger cooler then we would recommend taking a look at the other motors that we have recommended.

Durable Construction

The A.O. Smith VB2034 cooler motor is built out of solid stainless steel and alloy that gives it the resistance it needs to work effectively.

Its incredible power requires a hardcore construction the brand has provided it with. We would also like to mention that it’s corrosion and rust-resistant.

Cooling Mechanism

One of the main problems that a lot of consumers face when it comes to electric appliances is motor heating up after consistent use.

This happens when the motor isn’t manufactured thoughtfully and there aren’t small openings that let the airflow.

A.O. Smith VB2034 offers enigmatic power yet it doesn’t heat up even if you run it constantly for hours.

It has small openings that dissipate heat efficiently and keeps your motor from heating up. The cooler your motor is, the efficiently it will run.

You’re also going to be thrilled to know the brand has backed it up with a 10-year warranty. A longer lifespan will give you a safety net for your money.

Final Verdict:

We absolutely recommend the A.O. Smith VB2034 evaporative cooler motor for small-sized coolers that you use at home.

It’s quite powerful and will ensure your cooler runs smoothly, without any interruption for a very long time.

  • Solid construction
  • Corrosion and rust resistance
  • Enigmatic power
  • 10-year warranty
  • Customer support is lousy

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4. Port A Cool MOTOR-012-04E MOTOR

Portacool Swamp Cooler Motor

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The second last model that we want you to look into is the Port A Cool Motor-012-04E. This is a little expensive but does offer great performance in regards to keeping your room cool during the hot summers.

A lot of times, customers aren’t really happy with the factory default motor that’s installed in their swamp coolers at the time of purchase.

If you want to replace the default motor and customize the experience you’re extracting from your latest purchase, then Port A Cool Motor-012-04E would be a good option to invest in.

The overall performance of this motor is incredible. It works smoothly, doesn’t make noise, has a cooling mechanism that keeps the motor from heating up.

However, we did hit a few hiccups on our journey with this unit and we are going to enlighten you as we move ahead.

Construction Quality

The Port A Cool Motor-012-04E cooler motor is made out of stainless steel. The build quality feels solid and durable. It doesn’t weigh too much at the same time.

However, since most swamp coolers need to be protected from moisture so they have to be water-resistant, this one isn’t.

After a few months of use, you will find the motor getting greatly affected by rust and corrosion. That is the only glitch we found in this unit.

Performance Efficiency

Though we did hit a few hiccups with Port A Cool Motor-012-04E where construction quality was concerned. But, despite the fact, it offers incredible performance efficiency.

The installation process is fairly easy. It is installed right at the front of the cooler and blows cool air as soon as it starts running.

We also appreciate how smoothly it runs. You also don’t need any professional assistance for the installation.

It comes with a detailed buyer’s guide having all the information you need to get it running.

Cooling Mechanism

Last but not least, the cooling mechanism of this machine is incredible. It dissipates heat effectively so you won’t have to worry about your motor heating up.

On top of that, the motor also runs very smoothly and doesn’t make even the slightest noise. This is another important feature of this unit that we found worth appreciating.

Final Verdict:

The Port A Cool Motor-012-04E Motor is an expensive motor to go for. Although, its performance efficiency is unparalleled.

The fact that it soon becomes a heap of rust isn’t something that we would like our readers to experience.

Since you’re paying a lot of money for this unit, you shouldn’t have to replace it annually but this motor does require a replacement every 12-months which isn’t something we vouch for.

  • Easy to install
  • Doesn’t heat up
  • Unparalleled performance
  • Doesn’t make a noise
  • Doesn’t resist rust or corrosion
  • Expensive

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5. Dial 2548 – Standard Motor Kit

Dial 2548

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The last model that we would like you to take a look at is the dial evaporative cooler motor. This is another incredible option for evaporative coolers that cool air through the evaporation of water.

The Dial 2548 – Standard motor kit is a complete kit that you can use for your swamp cooler. It comes with all the tools that you need for the installation.

All you have to do is follow the instructions through the guide and you will be able to have the motor installed within no time.

The Dial is a prominent brand where motors are concerned. The spare parts they offer are of high quality and come at very reasonable prices which is why we have chosen them as a possible option for you.

Thermal Overload Protection

The Dial 2548 cooler motor has been integrated with thermal overload protection. This indicates that you won’t have to stop your cooler midway to cool it down.

The thermal overload protection keeps the motor from heating up and protects it against any malfunction that may occur.

Great Efficiency

The overall performance efficiency is incredible of Dial 2548. It offers a lot of power to swamp coolers and is a great choice for mid to large-sized coolers.

The construction quality is also commendable. It is corrosion and rust-resistant which is one of the reasons why it can last for a very long time.

Incredible Temperature Insulation

Since the motor has been integrated with thermal overload protection, it also provides solid temperature insulation.

The motor doesn’t heat up at all and runs smoothly for hours. Not to mention, you won’t even have to worry about any sort of noise.

Final Verdict:

The Dial 2548 swamp cooler motor is a complete set that you can get for your evaporative cooler. It’s a very thorough and performance-oriented motor offering incredible power and efficiency.

It’s a great choice for small to mid-sized coolers. The best part is, you can easily have it installed by yourself.

  • Solid construction
  • Great temperature insulation
  • Complete motor kit
  • Perfect for swamp coolers
  • A little expensive

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Best Swamp Cooler Motor Buyer’s Guide:

Now that you have taken a look at all the product recommendations above, we have some more information for you to make a more informed decision.

Finding the best ½ hp swamp cooler motor takes a lot of time and effort. You need to keep a number of things in mind if you want to end up with the right model for your swamp cooler.

So, taking the entire conversation forward, we are going to discuss a number of factors that you must keep in perspective when shopping for an evaporative cooler motor.

Things to Consider When Buying a Swamp Cooler Motor:


The very first thing you will have to consider is the voltage. Do you have an electric outlet through which you will get all the power you need?

Or you are going to go for a wireless motor that runs on batteries.

When it comes to finding a motor for coolers, we recommend going for a 115volts motor because it offers a sufficient amount of energy that will be able to power up your motor efficiently.

It gives all the energy you need and you will not have to rely on batteries as a power source.


Next, you need to consider the frequency of the motor. Most of the motors in the United States run at 60Hz. However, if you’re buying a motor outside of the US then you will probably need a frequency below 60Hz.

It’s completely up to what kind of cooler you will have the motor installed. You can always check the owner’s manual to get all the information you need.


Ask yourself, if there is a speed or a certain set of speeds that you need to run your motor on? if there is then try and search for the speed set you need.

We are sure you’re going to find a number of motors that will provide you what you’re looking for.

Also, when it comes to swamp cooler motors, there are also models available that offer dual-speed settings. These motors are extremely functional and give you a lot of options to customize your entire experience.


Don’t think that the amount of power your motor offers is equal to the amount of power your appliance consumes. Both of these things are different.

Sometimes, people end up buying motors that offer more power than their appliances actually need.

Those kinds of motors are actually more expensive and you pay for the power that you’re probably never going to use.

This is where you need to do all your research and then go ahead and make a purchase.

Cooling Mechanism

Is your appliance going to be running continuously or will it have small intervals in which the motor will get time to cool off?

If you’re planning to run your cooler for consistent hours, then you must go for a motor that has integrated the unit with a cooling mechanism.

This way, it won’t need small intervals to cool off and won’t heat up at the same time.

But, if you’re planning to use the cooler in small intervals then go for a motor that comes at an affordable price. It may not have a cooling mechanism but it will do all the things you need.

Life Cycle

How long do you need your motor to last? Appliances that are run intermittently can mostly get by even with motors that don’t have a longer lifespan.

But, if you’re appliance has to run consistently on high power as a swamp cooler does then you need a motor with a longer lifespan.

There are several models, even among the ones we have recommended above that you can choose from. These motors last long and offer a great level of performance efficiency.

Construction Quality

Of course, we cannot deny how absolutely necessary it is to consider the construction quality. When it comes to motor manufacturing standards, never compromise.

The lifespan of your motor is going to be determined by how solidly built the unit really is. Make sure it is corrosion and rust-resistant.

Swamp cooler motors are exposed to moisture consistently so they are more prone to rust. Having a water resistant-motor is going to be your best call here.

Frequently Asked Questions:

How to wire a two swamp cooler motor?

Here is how you can wire a two-swamp cooler motor, • Determine the voltage of your motor and color-coding of the wires as the first step.

• Now observe the manufacturing guide to determine what it says about connecting the two wires.

• Connect the green wire to the 12-volt circuit.

• Once done, connect the red wire to the low fan speed that you will find in the control unit.

• There is a black wire that you will connect to the high-speed fan.

• Lastly, connect the white wire to the neutral 12-volts circuit.

Follow the instructions closely and you will successfully connect the wires together.

How to fix a swamp cooler motor?

Here is how you can fix the swamp cooler motor

• First you need to empty the swamp cooler pan and make sure no water residue is left behind.

• Once done, you have the chance to repair any leaks the cooler has.

• Check the belt for any cracks and if you find any cracks, you need to replace the belt.

• If your motor is leaving a burning smell, then you need to take the motor off and have the wirings repaired at once.

Fixing a swamp cooler motor isn’t easy. If you don’t get where the problem is coming from, always get professional assistance.

How to oil swamp cooler motor?

Here is how you can oil the swamp cooler motor

• Take the motor off of the setup.

• Take a brush and start oiling your motor bearings.

• Don’t pour the oil over the motor. Instead, dip your brush in the oil and coat it over the motor.

Once done, attach it back to the cooler and you’re good to go.


So, this is everything we had on the best swamp cooler motor. We did massive research to try and find the best motor options that you can get for yourself.

Making sure the motor you do end up with offers unparalleled performance is very important. You cannot neglect all the factors that we have mentioned and make sure not to leave anything behind.

If you keep all the things in mind, you will never regret your purchase.

Also, don’t forget to review the models before even on Amazon when you’re making a purchase. We would love to hear your feedback on this.

If there are other swamp cooler motors that you would like us to consider, don’t forget to leave us with your feedback.

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