6017050 Evaporative Cooler Pump with 3 Pin Connector
4.5Editor score
Fits specific MC18M MC18V models
Thermally protected from overheating
Quick connect disconnect for easy swap
In this guide
Finding the right evaporative cooler pump ensures your swamp cooler runs efficiently throughout the hot summer months. A reliable pump circulates water effectively to keep your home cool and comfortable without excessive energy costs or noise disruptions.
We compared ten highly rated models based on performance specifications durability and user feedback. Each product was evaluated for motor quality flow rate and ease of installation to provide a comprehensive overview for homeowners and professionals alike.
Each pick highlights unique strengths and ideal use cases to help you make an informed decision. Prices and availability may vary so we recommend checking current listings before purchasing to ensure you get the best value for your needs.
Top 3 Picks for Best Evaporative Cooler Pump
Dial Manufacturing UL7500 115V Concentric Evaporative Cooler Pump
4.5Editor score
Noncorrosive flame-retardant motor housing
Removable base plate for easy access
Built-in pump screen for debris protection
UL7500 110-120V Swamp Cooler Pump
5.0Editor score
Fully submersible design for safety
Bottom-suction intake with debris guard
Ultra quiet operation with dry-burn protection
Top 10 Best Evaporative Cooler Pump in 2026 Compared
This side-by-side comparison highlights key specifications and features of each pump to help you identify the best match for your specific cooler model and performance requirements.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Dial Manufacturing UL7500
115V Concentric Motor Design
Noncorrosive Flame-Retardant Housing
Removable Base Plate Included
Built-In Pump Screen Feature
4.5Editor score
Editor's Choice
Dial MC8500UL
115V High Efficiency Motor
Thermal Overload Protection Included
Low Noise Quiet Performance
Corrosion Resistant Shaft Bearings
4.3Editor score
Best Premium
Little Giant CP1-115
1/70 HP Concentric Motor
307 GPH Flow Rate
45 Degree Discharge Adapter
Snap-Off Volute Plate
4.3Editor score
6017050 Replacement Pump
Fits MC18M MC18V Models
Thermally Protected Motor
Quick Connect Connector System
Durable Components for Life
4.5Editor score
6060050 Ultra Quiet Pump
Fits MC61M MC61V Models
Ultra Quiet Operation
Dry Burning Protection Feature
Durable Reliable Components
4.6Editor score
DIAL 1387 UL15000
Highly Durable Construction
Easy to Use Design
Easy Installation Process
Made In China Origin
4.5Editor score
UL11000 Evaporative Pump
Universal Compatibility for Coolers
Fully Submersible Design
Bottom-Suction Intake Grille
Ultra Quiet Dry-Burn Protection
4.6Editor score
UL7500 Swamp Cooler Pump
Universal Replacement for Coolers
Fully Submersible Safety
Bottom-Suction Intake Feature
Ultra Quiet Dry-Burn Protection
5.0Editor score
Little Giant CP3-115
1/30 HP Concentric Motor
563 GPH Flow Rate
45 Degree Discharge Adapter
Snap-Off Volute Plate
4.5Editor score
Little Giant 542005
1/30 HP Heavy Duty Motor
563 GPH Flow Rate
Thermal Overload Protection
90 Degree Barbed Elbow
4.1Editor score
1. Dial Manufacturing UL7500 – Best Overall Evaporative Cooler Pump
Dial Manufacturing UL7500 115V Concentric Evaporative Cooler Pump
115V Concentric Motor Power
Noncorrosive Flame-Retardant Housing
Removable Base Plate Design
Built-In Pump Screen Feature
The Dial Manufacturing UL7500 stands out as a top choice for evaporative cooler pumps due to its robust construction and reliable performance. With a 4.5 rating it has earned trust among users for consistent operation during demanding cooling seasons.
Pros
- Durable noncorrosive construction
- Built-in pump screen protection
- Removable base plate for service
- Flame-retardant motor housing
- Proven reliability over years
Cons
- May require adapter for some models
- Slightly higher price point
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Its noncorrosive flame-retardant motor housing ensures safety and longevity even in humid environments. The removable base plate simplifies maintenance allowing you to clean the pump without replacing the entire unit which saves time and money.
While it may not fit every cooler without an adapter the quality of materials justifies the investment. The built-in pump screen prevents debris from entering the system reducing the risk of clogs and motor strain.
This pump is ideal for homeowners seeking a durable replacement that balances performance and ease of maintenance. It is particularly suited for units requiring a concentric pump design with high reliability standards.
Long-Lasting Motor Protection
The flame-retardant motor housing adds a layer of safety ensuring the pump operates safely without overheating risks common in cheaper models.
Easy Maintenance Access
The removable base plate allows you to access internal components quickly making routine cleaning and inspection straightforward without professional help.
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2. Dial MC8500UL – Best for High CFM Units
Dial MC8500UL High-Efficiency Evaporative Cooler Pump with Thermal Overload Protection – 115V, 4,000-8,500 CFM Units – 1442
115V High-Efficiency Motor
4000-8500 CFM Compatibility
Thermal Overload Protection
Corrosion Resistant Shaft
The Dial MC8500UL is engineered specifically for evaporative coolers in the 4000-8500 CFM range making it a specialized choice for larger units. Its thermal overload protection ensures safe operation even during peak heat when demand is highest.
Pros
- Designed for high CFM systems
- Thermal overload protection included
- Quiet performance operation
- Corrosion resistant shaft bearings
- Includes mounting brackets and filter
Cons
- Specific to certain CFM ranges
- Installation may need adjustment
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Users appreciate its low noise design which maintains a comfortable environment without disrupting daily activities. The corrosion-resistant shaft and bearings contribute to consistent performance and reduce the likelihood of premature failure due to wear.
While it is tailored for specific CFM requirements the included mounting brackets and mesh filter bag simplify installation. This makes it a practical option for those upgrading or replacing pumps in larger commercial or home systems.
If you have a high-capacity cooler this pump offers the right balance of power and safety. It is best suited for users who prioritize longevity and quiet operation in larger cooling setups.
Thermal Safety Features
The thermal overload protection prevents the motor from burning out during extended use adding a critical safety layer for continuous cooling operations.
Low Noise Performance
Engineered for quiet performance this pump ensures that your cooling system does not add unnecessary noise to your home or office environment.
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3. Little Giant CP1-115 – Best for Small to Medium Systems
Little Giant CP1-115, 1/70 HP, 115/127V, 307 GPH Evaporative Cooler Pump
1/70 HP Concentric Fan-Cooled Motor
307 GPH Flow Rate
Snap-Off Volute Plate
Corrosion Resistant Steel Shaft
The Little Giant CP1-115 is a versatile pump designed for evaporative coolers as well as labs and water displays. With a 307 GPH flow rate it handles small to medium systems efficiently while maintaining a compact footprint.
Pros
- High quality fan-cooled motor
- Snap-off volute plate for cleaning
- Versatile mounting options
- Fits 5/8 and 3/4 tubing
- 6 foot cord with plug
Cons
- Limited to lower flow rates
- Voltage specific 115/127V
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Its built-to-last design includes a high-quality concentric fan-cooled motor with thermal overload protection ensuring reliability. The snap-off volute plate makes cleaning easy allowing you to remove debris without disassembling the entire pump.
This pump offers versatile mounting options including a 45 degree discharge adapter which adds flexibility during installation. It fits standard tubing sizes making it adaptable to various cooler configurations found in residential settings.
Ideal for users with standard residential units this pump provides a balance of performance and ease of use. It is best for those who need a reliable pump for smaller flow requirements without sacrificing durability.
Cleaning Convenience
The snap-off volute plate allows for quick and easy cleaning of the pump housing preventing mineral buildup from affecting performance over time.
Mounting Flexibility
Included 45 degree discharge adapter provides flexible installation options allowing the pump to fit in different tank orientations easily.
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4. 6017050 Replacement Pump – Best Budget Option
6017050 Evaporative Cooler Pump with 3 Pin Connector
Fits MC18M MC18V Models
Thermally Protected Motor
Quick Connect Connector
High Performance Protection
The 6017050 Evaporative Cooler Pump is an affordable solution designed to replace pumps in specific cooler models like MC18M and MC18V. With a 4.5 rating it offers value without compromising essential performance features.
Pros
- Affordable replacement cost
- Quick connect disconnect system
- Thermal protection included
- Fits specific popular models
- Durable component construction
Cons
- Only fits specific model range
- No extra mounting accessories
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Its high performance includes thermal protection from overheating which safeguards the motor during dry running conditions. The quick connect disconnect system simplifies the replacement process reducing installation time significantly for DIY users.
Although it is limited to specific models the quality of components ensures reliable operation when installed correctly. It is a practical choice for owners of compatible units who need a cost-effective fix without expensive service calls.
This pump is recommended for those seeking a budget-friendly replacement that maintains reliability. It is best suited for users with matching cooler models who want a straightforward swap solution.
Quick Install Design
The quick connect connector allows for a fast swap without complex wiring making it accessible for homeowners with basic tools.
Thermal Protection
Thermally protected motor ensures that the pump shuts down safely if it overheats preventing permanent damage from dry running.
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5. 6060050 Ultra Quiet Pump – Best for Quiet Operation
6060050 Evaporative Coolers Pump Ultra Quiet with Dry Burning Protection
Fits MC61M MC61V Models
Ultra Quiet Operation
Dry Burning Protection
Durable Components
The 6060050 Evaporative Coolers Pump is optimized for quiet operation making it ideal for homes where noise levels are a concern. It fits models like MC61M and MC61V and comes with dry burning protection for added safety.
Pros
- Ultra quiet performance
- Dry burning protection feature
- Fits specific models
- High performance safety
- Durable reliable components
Cons
- Specific to MC61M models
- May need adapter for others
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Its ultra quiet design ensures that the pump runs smoothly without disturbing your environment. The dry burning protection automatically shuts off the motor if water levels drop low preventing motor damage and extending its lifespan.
This pump is designed for long-lasting reliable operation with durable components that withstand daily use. The ease of installation makes it a viable option for owners looking to upgrade their current cooling systems effectively.
For homeowners prioritizing noise reduction and safety this pump is an excellent choice. It is best suited for users with compatible cooler models who want a quiet efficient replacement solution.
Quiet Operation
The ultra quiet feature reduces operational noise making it suitable for bedrooms and living areas where peaceful environments are preferred.
Dry Burn Safety
Dry burning protection prevents motor damage from running dry ensuring the pump is safe for unattended or overnight use.
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6. DIAL 1387 UL15000 – Best for Durability
DIAL 1387 UL15000 Cooler Pump
Highly Durable Construction
Easy to Use Design
Easy Installation Process
Made In China Origin
The DIAL 1387 UL15000 Cooler Pump is known for its highly durable construction and ease of use. It is designed to offer reliable performance for those seeking a straightforward replacement without complex requirements.
Pros
- Highly durable construction
- Easy to use design
- Simple installation process
- Reliable performance
- Easy handling
Cons
- Limited specifications provided
- Basic design features
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Users highlight its easy installation and handling which makes it accessible for DIY enthusiasts. The product is manufactured to be robust ensuring it can withstand regular operation in cooler systems without premature failure.
While it may lack some advanced features the core focus is on durability and simplicity. This makes it a practical option for basic residential cooling needs where reliability is key over extra amenities.
This pump is recommended for users who prioritize a durable and easy-to-install replacement. It is best suited for standard cooler models where basic performance and longevity are the main goals.
Durable Build
The durable construction ensures that the pump can withstand regular use and harsh conditions inside the cooler tank.
Simple Installation
Easy installation features allow users to swap the pump quickly without needing specialized tools or professional assistance.
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7. UL11000 – Best Fully Submersible Pump
UL11000 110-120V Evaporative Cooler Pump
Universal Compatibility
Fully Submersible Design
Bottom-Suction Intake
Ultra Quiet Dry-Burn
The UL11000 is a universal evaporative cooler pump designed to fit most industrial commercial and portable units. Its fully submersible design eliminates water level worries allowing the entire unit to sit underwater without damage.
Pros
- Fully submersible for safety
- Bottom-suction intake prevents clogs
- Universal evaporative cooler fit
- Ultra quiet operation
- Dry-burn protection feature
Cons
- Larger dimensions may not fit small tanks
- Higher price than basic pumps
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The bottom-suction intake with debris guard pulls water from the bottom of the tank preventing sediment from clogging the system. This extends the life of the pump significantly compared to traditional side-suction models.
It runs ultra quietly with minimal noise and includes dry-burn protection to shut off automatically when water runs low. This makes it safe for 24/7 use without risking motor burnout from accidental dry running.
Ideal for homeowners wanting a versatile and safe solution this pump excels in protection and ease of use. It is best suited for larger cooler tanks where full submersibility prevents critical.
Submersible Safety
Being fully submersible means the pump is protected from air pockets and overheating allowing for continuous safe operation in the tank.
Debris Management
The bottom-suction intake traps debris before it reaches the motor keeping the system cleaner and preventing frequent clogs and failures.
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8. UL7500 – Best Compact Submersible Option
UL7500 110-120V Swamp Cooler Pump
Universal Replacement Fit
Fully Submersible Design
Bottom-Suction Intake
Ultra Quiet Operation
The UL7500 Swamp Cooler Pump offers a compact alternative to taller submersible models making it ideal for tight spaces. It is universal for most units and features the same safety benefits as the larger version with a smaller footprint.
Pros
- Compact design for tight spaces
- Fully submersible safety
- Bottom-suction intake prevents clogs
- Ultra quiet with dry-burn
- Universal compatibility
Cons
- Limited to smaller flow needs
- May not fit very large tanks
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Its fully submersible design allows it to sit completely underwater preventing motor damage. The bottom-suction intake ensures that debris is trapped before it enters the system reducing maintenance needs and clog risks.
With a perfect 5.0 rating users highlight its ultra quiet performance and reliable dry-burn protection. This pump provides premium features like noise reduction and safety in a compact package suitable for many portable coolers.
For those needing a quiet compact submersible pump this model is a top choice. It is best suited for smaller to medium tanks where space is limited but safety is still a priority.
Compact Fit
The compact design fits into tight spaces where taller pumps cannot fit making it ideal for smaller portable cooler units.
Premium Features
Premium features like dry-burn protection and ultra quiet operation make this pump stand out as a high quality reliable solution.
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9. Little Giant CP3-115 – Best for High Flow
Little Giant CP3-115, 1/30 HP, 115V, 563 GPH Evaporative Cooler Pump
1/30 HP Concentric Motor
563 GPH Flow Rate
12 ft Shutoff Height
Snap-Off Volute Plate
The Little Giant CP3-115 delivers a higher flow rate of 563 GPH making it suitable for large evaporative coolers needing more water circulation. With a 1/30 HP motor it provides the power needed for demanding cooling applications.
Pros
- High flow rate performance
- 1/30 HP motor power
- Thermal overload protection
- Snap-off volute plate
- Fits large CFM units
Cons
- Higher cost than basic models
- Specific voltage requirements
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It includes thermal overload protection to ensure safe operation under high demand. The snap-off volute plate makes cleaning easy allowing you to maintain the pump without disassembling the whole unit which extends service life.
This pump supports tubing sizes of 5/8 and 3/4 inch which adds versatility for different setups. Its high shutoff height of 12 feet allows for flexible placement in various tank configurations.
Ideal for commercial or large residential systems this pump offers power and reliability. It is best suited for users who need a robust pump capable of moving high volumes of water efficiently.
High Flow Power
The 1/30 HP motor provides the power needed to move high water volumes ensuring effective cooling for large units.
Cleaning Access
The snap-off volute plate allows quick access to internal components for easy cleaning and maintenance to prevent mineral buildup.
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10. Little Giant 542005 – Best Heavy Duty Option
Little Giant 542005 CP3-115 1/30 Horsepower Evaporative Cooler Pump
1/30 HP Heavy Duty Motor
563 GPH Flow Rate
Thermal Overload Protection
Universal Mounting Configurations
The Little Giant 542005 CP3-115 is a heavy-duty option designed for reliable performance in demanding environments. With a 1/30 HP motor and 563 GPH flow rate it matches the performance of its sibling CP3-115 with added universal mounting.
Pros
- Heavy duty motor construction
- High flow rate capacity
- Thermal overload safety
- Universal mounting flexibility
- Bleed-off elbow included
Cons
- Slightly lower user rating
- May be overkill for small units
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It includes thermal overload protection to safeguard the motor from overheating during extended use. The universal mounting configurations allow you to position the pump in various orientations to fit different cooler designs easily.
This pump comes with a 90 degree barbed elbow with bleed-off which simplifies the plumbing setup. It is a robust choice for those who need a durable pump with flexible installation options for larger systems.
Recommended for users prioritizing heavy-duty reliability this pump offers solid performance and safety features. It is best suited for large capacity coolers where consistent high flow is necessary.
Universal Mounting
Universal mounting configurations allow the pump to fit in different orientations making installation easier for various cooler tank designs.
Heavy Duty Motor
The heavy duty concentric fan-cooled motor ensures reliable long-term performance even under continuous cooling demands.
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Buying Guide – How to Choose the Best Evaporative Cooler Pump
Selecting the right evaporative cooler pump depends on your specific cooler model flow requirements and environmental conditions. This guide breaks down the key factors to consider for making a smart choice.
Compatibility and Model Fit
The most critical factor is ensuring the pump matches your cooler's model. Some pumps like the 6017050 are designed for specific models while others are universal. Always check your cooler's manual or tank dimensions before buying.
Look for universal pumps if you need flexibility or specific replacement pumps if you want a direct fit.
Flow Rate Capacity
Flow rate measured in Gallons Per Hour (GPH) determines how much water the pump moves. Small coolers need around 300 GPH while larger systems require 500+ GPH for efficient cooling.
Match the GPH to your cooler size to avoid under-cooling or wasting energy.
Motor Protection Features
Thermal overload and dry-burn protection are vital for pump longevity. These features shut off the motor if it overheats or runs dry preventing permanent damage.
Prioritize pumps with built-in thermal protection for safer operation especially if you run your cooler unattended.
Noise Levels
Noise can be an issue if your cooler is near living spaces. Some models feature ultra-quiet designs that reduce operational hum to a minimum.
Check user reviews and product descriptions for noise ratings if quiet operation is a priority for your home.
Installation Ease
Easy installation saves time and money on service calls. Look for pumps with quick-connect connectors or simple screw mounts.
Consider pumps with included adapters if you need to match specific tubing sizes during installation.
Durability and Materials
Build materials like corrosion-resistant shafts and flame-retardant housings extend pump life. Pumps with snap-off volute plates allow for easy cleaning and maintenance.
Invest in durable materials to avoid frequent replacements and keep your system running smoothly.
Voltage Requirements
Most pumps operate on 115V but some support dual voltages like 115/127V. Ensure your electrical setup matches the pump's voltage to prevent damage.
Always verify the voltage rating before purchase to ensure safe operation with your home's power supply.
Submersibility
Fully submersible pumps can sit entirely in water without risk of electrical damage. This design prevents overheating from air pockets and allows for flexible placement.
Choose submersible pumps for larger tanks where water level fluctuations might expose non-submersible units.
How to Use and Care for Your Evaporative Cooler Pump
To install your new pump, first ensure the power is disconnected. Remove the old pump by disconnecting hoses and wires then place the new unit in the tank ensuring it sits level.
Regular cleaning is essential to maintain efficiency. Remove the pump every few weeks to clear debris from the intake screen and clean mineral buildup from the volute plate.
Always check water levels before operating your cooler. A dry pump can overheat quickly so ensure there is enough water in the tank before turning the system on.
Frequently Asked Questions
How often should I replace my evaporative cooler pump?
On average, a pump should be replaced every 3 to 5 years depending on usage and water quality. Regular cleaning and proper maintenance can extend its lifespan significantly.
Can I use a universal pump for any swamp cooler?
While universal pumps fit many models, you must check the flow rate and dimensions. Some coolers need specific GPH to function efficiently so verify compatibility first.
Why does my pump keep overheating?
Overheating often happens due to dry running or mineral buildup. Ensure the pump is fully submerged and clean the intake screen regularly to prevent blockages.
What is dry-burn protection?
Dry-burn protection is a safety feature that automatically shuts off the motor if water levels get too low. This prevents the motor from burning out due to lack of cooling water.
Do evaporative cooler pumps need special voltage?
Most standard pumps operate on 115V household voltage. Always check the product specifications to ensure the voltage matches your home's electrical outlet requirements.
How do I know the right flow rate for my cooler?
Check your cooler's manual for the recommended GPH. Generally, larger units need higher flow rates to distribute water effectively across the cooling pads.
Is it safe to leave the pump running all day?
Yes, if the pump has thermal protection and remains submerged. Modern pumps are designed for continuous operation provided there is enough water in the tank.
Can I install a replacement pump myself?
Yes, most replacements are DIY-friendly. Turn off the power, disconnect hoses, and swap the units. Use adapters if necessary to fit your hose sizes.
Final Thoughts on Choosing the Best Evaporative Cooler Pump
We reviewed the top 10 evaporative cooler pumps for October 2026 highlighting options for every need. The Dial Manufacturing UL7500 leads overall while the UL7500 is perfect for those seeking a premium compact submersible option.
When choosing a pump prioritize compatibility and safety features like thermal protection. Investing in a quality pump will ensure your cooler runs smoothly and efficiently all summer long.
Prices and availability can change so we recommend verifying current listings before purchase. Keep this guide in mind to find the perfect pump for your home or commercial cooler system.