6017050 Evaporative Cooler Pump
4.5Editor score
Thermal protection included
Easy quick connect install
Fits common MC models
In this guide
Finding the right evaporative cooler pump is essential for keeping your swamp cooler running smoothly during the hottest months. A reliable pump ensures consistent water circulation which maintains optimal cooling performance and prevents dry burning of the motor.
We evaluated ten top rated models based on flow rate durability noise levels and ease of installation. Each product was analyzed for its compatibility with common cooler sizes and its ability to handle continuous operation without overheating or excessive wear.
Our selections highlight key features like thermal protection and submersible designs to suit various household needs. Please note that product availability and pricing may change so verify details before making your final purchase decision.
Top 3 Picks for Best Evaporative Cooler Pump
UL11000 110-120V Pump
4.6Editor score
Fully submersible design
Bottom suction intake
Dry burn protection
Dial MC8500UL High-Efficiency Pump
4.3Editor score
Corrosion resistant shaft
Thermal overload protection
Includes mounting brackets
Top 10 Best Evaporative Cooler Pump in 2026 Compared
This table provides a quick side by side overview of all ten selected pumps highlighting their core specifications and key distinguishing features for easy comparison.
ProductsSpecificationsEditor scorePrice
Best Budget
Dial Manufacturing UL7500
Noncorrosive motor housing
Built-in pump screen
Removable base plate
115V operation
4.5Editor score
Editor's Choice
Dial MC8500UL
4000-8500 CFM
Thermal overload protection
Low noise operation
Corrosion resistant shaft
4.3Editor score
Best Premium
Little Giant CP1-115
307 GPH flow
1/70 HP motor
Snap-off volute plate
45 degree adapter
4.3Editor score
6017050 Pump
Fits MC18M MC17
Quick connect pins
Thermal protection
Durable components
4.5Editor score
6060050 Pump
Fits MC61M M250
Ultra quiet design
Dry burning protection
Easy installation
4.6Editor score
DIAL 1387
Highly durable build
Easy handling design
Easy installation steps
UL15000 rated
4.5Editor score
UL11000 Pump
100% Submersible
Bottom suction intake
Debris guard included
Up to 660 GPH
4.6Editor score
UL7500 Pump
Compact design fit
Up to 528 GPH
Fully submersible
Dry-burn protection
5.0Editor score
Little Giant CP3-115
563 GPH flow
1/30 HP motor
Snap-off volute plate
Fits 5/8 tubing
4.5Editor score
Little Giant 542005
563 GPH capacity
Heavy duty motor
90 degree elbow
Universal mounting
4.1Editor score
1. UL11000 Pump – Best Overall for Submersible Reliability
UL11000 110-120V Pump
Up to 660 GPH
Fully submersible unit
Bottom suction intake
Dry-burn protection
The UL11000 110-120V Evaporative Cooler Pump stands out as a top choice for homeowners seeking a modern and reliable replacement. With a rating of 4.6 stars it is praised for its fully submersible design that eliminates water level worries common in older pumps.
Pros
- Fully submersible motor design
- Bottom suction prevents clogs
- Built-in dry burn safety
- Quiet smooth operation
- Easy DIY installation
Cons
- Requires specific tank depth
- Limited to 120V systems
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Its bottom suction intake pulls water from the tank bottom where sediment settles and traps debris before it reaches the system. The built-in dry-burn protection ensures the motor shuts off automatically if water runs low preventing costly damage during dry seasons.
While the pump is designed for tanks of sufficient depth to accommodate its height users may need to verify their cooler tank dimensions before purchase. Additionally it operates on standard 120V which fits most residential systems but not all industrial setups requiring different voltages.
Ideal for homeowners and DIY users this pump restores cool air efficiently without needing special tools or skills. We recommend it for those prioritizing motor protection and quiet operation in their swamp cooler systems.
For more about how to maximize your cooler efficiency read our section on care and maintenance tips later in this guide.
Submersible Design Benefits
Being fully submersible means the motor is never exposed to air reducing the risk of overheating and short circuits.
Bottom Suction Advantage
The intake grille at the base captures debris early keeping internal components cleaner and extending pump lifespan.
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2. 6017050 Pump – Best Budget Replacement
6017050 Evaporative Cooler Pump
Fits MC18M MC17
Quick connect pins
Thermal protection
Durable components
The 6017050 Evaporative Cooler Pump is an excellent budget friendly option for owners of specific models like MC18M MC17 and MFC1600. It offers a straightforward replacement solution with a quick connect 3 pin connector that simplifies the swap process.
Pros
- Affordable replacement option
- Simple plug and play setup
- Thermally protected motor
- Compatible with common models
Cons
- Limited to specific models
- No submersible housing
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Its thermally protected motor helps prevent overheating during dry runs while durable components ensure reliable operation. The compact design fits easily into existing cooler tanks without requiring major modifications or additional tools.
However it is tailored for specific cooler models so verify compatibility before buying. It also lacks the fully submersible housing found in premium pumps which may limit its longevity in tanks with inconsistent water levels.
We recommend this pump for users seeking a cost effective fix for common cooler issues without compromising on basic safety features.
For more details on identifying your cooler model please check the manufacturer label on your unit.
Quick Connect Ease
The 3 pin connector allows for a fast swap reducing installation time and hassle for DIY users.
Thermal Protection
Built-in thermal safeguards help avoid motor burnout if water levels drop unexpectedly during operation.
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3. Dial MC8500UL – Best Premium Performance
Dial MC8500UL High-Efficiency Pump
4000-8500 CFM
Thermal overload protection
Low noise operation
Corrosion resistant shaft
The Dial MC8500UL is engineered for high efficiency performance in larger evaporative cooler units ranging from 4000 to 8500 CFM. It delivers consistent water circulation while maintaining low noise levels for a comfortable indoor environment.
Pros
- High efficiency for large units
- Thermal overload protection
- Corrosion resistant parts
- Includes mounting brackets
- Quiet performance
Cons
- Higher price point
- Requires 115V power
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Key features include a corrosion resistant shaft and bearings that ensure longevity even in humid conditions. Thermal overload protection adds an extra layer of safety preventing motor damage during extended high demand periods.
Though it comes at a premium price compared to standard models the included mounting brackets and durable construction justify the investment for serious users. Note it requires a standard 115V outlet which is common in most homes.
We recommend this pump for owners of larger units seeking reliable quiet and efficient operation over many seasons.
For tips on maintaining high efficiency coolers refer to our buying guide section on cooling capacity needs.
Large Unit Compatibility
Designed specifically for 4000 to 8500 CFM units it provides adequate water flow for optimal cooling.
Noise Reduction
Engineered for quiet performance this pump minimizes noise making it suitable for offices and living spaces.
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4. Dial UL7500 – Best Concentric Design
Dial Manufacturing UL7500
Noncorrosive housing
Built-in pump screen
Removable base plate
115V operation
The Dial Manufacturing UL7500 features a concentric design with a noncorrosive flame-retardant motor housing ideal for wet environments. A built-in pump screen helps prevent debris from entering the system ensuring smoother operation.
Pros
- Noncorrosive motor housing
- Built-in screen prevents clogs
- Removable base for cleaning
- UL certified safety
Cons
- Fixed base may limit fit
- Not fully submersible
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Its removable base plate allows for easy cleaning and maintenance which is crucial for keeping water flow consistent. The 115V motor provides reliable power for standard swamp cooler applications.
While the fixed base plate might not fit all tank configurations the ease of maintenance makes it a practical choice for many users. It is not fully submersible so water level management remains important.
We suggest this model for those valuing safety certifications and ease of cleaning in their cooler setup.
For maintenance tips check our section on cleaning cooler components to extend pump life.
Safety Housing
The flame-retardant motor housing adds an extra layer of safety in case of electrical or heat issues.
Screen Protection
The built-in screen catches particles before they reach the impeller reducing wear and tear on internal parts.
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5. Little Giant CP1-115 – Best for Precision Flow
Little Giant CP1-115
307 GPH flow
1/70 HP motor
Snap-off volute plate
45 degree adapter
The Little Giant CP1-115 delivers reliable performance with a 307 GPH flow rate ideal for smaller to medium units. Its high quality concentric fan-cooled motor with thermal overload protection ensures durability and safety.
Pros
- Snap-off plate for cleaning
- Corrosion resistant shaft
- Includes discharge adapter
- High quality motor
Cons
- Lower flow rate
- Fixed tubing size
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A snap-off volute plate makes cleaning easy without disassembling the whole unit. The 45 degree discharge adapter fits common tubing sizes offering versatile mounting options.
The lower flow rate may not suit larger coolers needing high volume water distribution. Also the tubing size is fixed to 5/8 or 3/4 inches which limits adaptation to unusual setups.
This pump is a solid choice for users needing precise water flow and easy maintenance in standard systems.
For sizing advice see our buying guide section on flow rate requirements.
Cleanability
The snap-off plate allows quick access to the pump interior for debris removal and maintenance.
Thermal Protection
Thermal overload protection prevents motor burnout during dry cycles or overheating events.
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6. 6060050 Pump – Best Quiet Operation
6060050 Pump
Fits MC61M M250
Ultra quiet design
Dry burning protection
Easy installation
The 6060050 pump is designed for ultra quiet operation making it perfect for homes or offices where noise matters. It fits models like MC61M and M250 with a simple quick connect replacement process.
Pros
- Ultra quiet performance
- Dry burning protection
- Quick swap installation
- Compatible with common models
Cons
- Limited model compatibility
- No advanced debris guard
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Dry burning protection adds safety by shutting off the pump if water levels drop preventing motor damage. The durable components ensure reliable long-term performance.
Compatibility is limited to specific models so verification is key. It also lacks some advanced debris guards found in higher end units which might require more frequent cleaning.
We recommend this pump for users prioritizing quiet performance and easy swaps in compatible coolers.
For noise reduction tips check our guide on balancing cooler components.
Quiet Performance
Engineered for minimal noise this pump maintains a low hum even under continuous operation.
Safety Protection
Dry burning protection safeguards the motor from damage due to low water levels.
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7. Dial 1387 – Best for High Capacity
DIAL 1387
Highly durable build
Easy handling design
Easy installation steps
UL15000 rated
The DIAL 1387 is engineered for high capacity cooling with a highly durable and easy to use design. It simplifies installation with straightforward steps that save time during replacement.
Pros
- Highly durable construction
- Easy to handle and install
- Designed for high flow
- Simple setup process
Cons
- Less detailed specs available
- May require specific tank fit
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Its UL15000 rating indicates it is built to handle demanding conditions in larger units. The construction focuses on durability ensuring it stands up to frequent use.
Detailed specs are less available compared to other models so check dimensions before purchase. Some users may find tank fit requires adjustment due to its size.
We suggest this pump for those needing a robust durable solution for larger cooling systems.
For more on capacity needs see our buying guide section on unit size.
Durability Focus
Constructed for high durability this pump withstands rigorous use in commercial or heavy residential settings.
Ease of Use
The design prioritizes easy handling and installation reducing effort during setup and maintenance.
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8. UL7500 – Best Compact Submersible
UL7500 Pump
Compact design fit
Up to 528 GPH
Fully submersible
Dry-burn protection
The UL7500 Pump offers a compact design that fits tight spaces where taller pumps won't. It is fully submersible ensuring the motor remains safe and functional even when fully submerged in water.
Pros
- Compact tank friendly design
- Fully submersible motor
- Dry-burn safety feature
- High customer satisfaction
Cons
- Smaller flow than larger pumps
- Requires standard 120V
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With dry-burn protection and a flow up to 528 GPH it balances safety and performance for many standard units. Customer satisfaction is high with a perfect rating reflecting reliable operation.
Its flow rate is lower than heavy-duty models so verify it matches your cooler requirements. The 120V requirement is standard but worth confirming for your setup.
We recommend this for users needing a space saving yet powerful submersible pump.
For tank size tips refer to our buying guide on installation space.
Compact Advantage
Its compact build allows it to fit into smaller tanks without compromising functionality.
Submersible Safety
Fully submersible design protects the motor from exposure to air and short circuits.
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9. Little Giant CP3-115 – Best Heavy Duty Option
Little Giant CP3-115
563 GPH flow
1/30 HP motor
Snap-off volute plate
Fits 5/8 tubing
The Little Giant CP3-115 features a robust 1/30 HP motor delivering 563 GPH flow for larger or heavy duty systems. Its snap-off volute plate simplifies cleaning while thermal overload protection enhances safety.
Pros
- High flow capacity
- Heavy duty motor
- Snap-off cleaning plate
- Versatile mounting
Cons
- Higher cost than basic models
- Requires 115V standard
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Versatile mounting options and corrosion resistant parts add to its durability. This pump is ideal for units needing higher water flow to maintain effective cooling.
The cost is higher than basic replacements but justified by performance and longevity. Ensure your system supports 115V standard power before purchase.
We suggest this for users needing heavy duty flow and reliability.
For heavy duty tips see our maintenance section.
High Flow Power
The 1/30 HP motor provides strong water flow for larger cooler units.
Cleaning Access
Snap-off plate design allows quick cleaning without full disassembly.
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10. Little Giant 542005 – Best Universal Fit
Little Giant 542005
563 GPH capacity
Heavy duty motor
90 degree elbow
Universal mounting
The Little Giant 542005 offers universal mounting configurations making it adaptable for various cooler setups. Its heavy duty concentric fan-cooled motor ensures reliable performance even in demanding conditions.
Pros
- Universal mounting configurations
- Heavy duty concentric motor
- Includes 90 degree elbow
- Strong flow rate
Cons
- Basic feature set
- Requires some plumbing adaptation
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Included 90 degree barbed elbow with bleed-off simplifies plumbing. The 563 GPH capacity suits medium to large units efficiently.
It lacks some modern protection features like submersible housing but remains solid for standard applications. Some users may need to adapt plumbing for perfect fit.
We recommend this for users needing universal adaptability and strong flow.
For plumbing tips see our buying guide section.
Universal Adaptability
Universal mounting configurations allow this pump to fit a wide range of cooler models.
Motor Strength
Heavy duty concentric motor provides consistent performance under varying loads.
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Buying Guide – How to Choose the Best Evaporative Cooler Pump
Choosing the right pump involves considering flow rate compatibility voltage and protective features to ensure your cooler runs efficiently and safely.
Flow Rate and Capacity
Flow rate measured in gallons per hour determines how much water the pump circulates. Match this to your cooler's size to ensure adequate wetting of the cooling media and optimal cooling performance.
Select a pump with flow matching your unit's needs to avoid under or over pumping.
Motor Voltage Compatibility
Most residential pumps operate on 115V or 120V. Ensure your power source matches the pump voltage to prevent electrical issues or motor damage.
Verify your cooler's power rating before purchasing a new pump.
Submersible vs External Design
Submersible pumps are fully waterproof and safer in wet tanks reducing burnout risks. External pumps require careful water level management to avoid motor exposure.
Choose submersible for added safety and ease of maintenance in wet environments.
Thermal and Dry Burn Protection
Thermal overload and dry burn protection shut off the motor if it overheats or runs without water. These features extend pump life and prevent costly replacements.
Look for built-in safety features to protect against accidental dry running.
Noise Levels and Operation
Some pumps are engineered for quiet operation while others may produce noticeable hums or vibrations. Low noise is important for indoor or office use.
Check noise ratings if sound is a concern for your installation location.
Mounting and Installation Ease
Quick connect pins or simple screw mounts reduce installation time. Universal mounting brackets offer flexibility across different cooler brands.
Opt for designs that simplify installation and reduce tool requirements.
Durability and Corrosion Resistance
Water environments can cause corrosion over time. Pumps with corrosion resistant shafts and housings last longer in humid conditions.
Choose durable materials to ensure longevity in wet environments.
Debris Guards and Maintenance
Bottom suction intakes or built-in screens catch debris preventing clogs and wear. Easy access plates allow quick cleaning.
Prioritize pumps with effective debris management to reduce maintenance needs.
How to Use and Care for Your Evaporative Cooler Pump
Before installation ensure the power to your cooler is turned off to prevent electrical hazards. Remove the back panel and disconnect the old pump carefully noting hose positions.
Install the new pump according to the manufacturer's guidelines ensuring all connections are secure and the unit is seated properly in the tank. Turn the system on to check for leaks and proper water flow.
Regularly inspect the pump for debris or buildup and clean intake screens as needed. Monitor water levels to avoid dry running which can damage the motor quickly.
Frequently Asked Questions
How do I know which pump fits my cooler?
Check your cooler's manual for compatible pump models and flow requirements. Compare the dimensions and connector types of the replacement pump to your existing unit to ensure proper fit and function.
Can I use a submersible pump in any cooler?
Submersible pumps work best in coolers with tanks deep enough to fully immerse the pump. Verify your tank depth and water level before choosing a submersible option to ensure safety.
What is dry burn protection?
Dry burn protection is a safety feature that automatically shuts off the pump motor when water levels drop too low. This prevents overheating and extends the life of the pump.
How often should I replace my cooler pump?
Pumps typically last several years but should be replaced if performance drops or the motor fails. Regular maintenance and checking for wear can help determine when replacement is necessary.
Why is my pump making noise?
Noise can indicate debris clogging the intake air bubbles or a worn motor. Clean the intake and check water levels first. Persistent noise may require pump replacement.
What voltage do most swamp cooler pumps use?
Most residential swamp cooler pumps operate on standard 115V or 120V power. Confirm your system's voltage before purchasing to ensure compatibility and safe operation.
Final Thoughts on Choosing the Best Evaporative Cooler Pump
Our top picks highlight the UL11000 as the best overall for reliability the 6017050 for budget conscious buyers and the Dial MC8500UL for premium performance needs.
Prioritize features like thermal protection submersibility and flow rate based on your cooler size and installation environment to maximize efficiency and longevity.
Always verify current product availability and specifications before purchase to ensure the best match for your specific cooling system requirements.