6017050 Evaporative Cooler Pump
4.5Editor score
Thermal protection for dry running
Fits multiple cooler models
Easy quick connect installation
In this guide
Finding the right evaporative cooler pump is essential for keeping your swamp cooler running efficiently during hot summer months. A reliable pump ensures consistent water circulation, preventing dry spots and maximizing cooling performance throughout your home or office space.
We have carefully evaluated ten leading models based on flow capacity, motor durability, installation ease, and noise levels. Our selection includes trusted brands like Dial and Little Giant alongside newer universal replacements designed for various cooler sizes and configurations.
Each pick highlights specific strengths such as thermal protection, submersibility, or quiet operation. Prices can fluctuate frequently, so please check the current listings before making your final decision to ensure you get the best value available today.
Top 3 Picks for Best Evaporative Cooler Pump
UL11000 Evaporative Cooler Pump
4.6Editor score
Fully submersible design
Bottom suction intake guard
Ultra quiet operation
Little Giant CP3-115
4.5Editor score
High flow capacity
Corrosion resistant shaft
Professional grade motor
Top 10 Best Evaporative Cooler Pump in 2026 Compared
Below you will find a side-by-side comparison of all ten selected pumps, highlighting their key specifications and unique features to help you make an informed decision for your specific cooling needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Dial UL7500 Concentric
Noncorrosive housing
Built-in pump screen
Removable base plate
115V operation
4.5Editor score
Editor's Choice
Dial MC8500UL High-Efficiency
Thermal overload protection
Low noise performance
Corrosion resistant shaft
4000-8500 CFM
4.3Editor score
Best Premium
Little Giant CP1-115
1/70 HP motor
307 GPH flow
Snap-off volute plate
5000-7500 CFM
4.3Editor score
6017050 Replacement
Fits MC18M models
Thermal protection
Easy installation
Durable components
4.5Editor score
6060050 Ultra Quiet
Fits MC61M models
Dry burn protection
Ultra quiet
Reliable operation
4.6Editor score
DIAL 1387 UL15000
Highly durable
Easy handling
Easy installation
Made in China
4.5Editor score
UL11000 Submersible
100% submersible
Bottom suction intake
Ultra quiet
Dry-burn protection
4.6Editor score
UL7500 Swamp Pump
Fits 528 GPH
Fully submersible
Compact design
Dry-burn protection
5.0Editor score
Little Giant CP3-115
1/30 HP motor
563 GPH flow
Corrosion resistant shaft
15000-21500 CFM
4.5Editor score
Little Giant 542005
1/30 HP motor
Universal mounting
Thermal protection
Bleed-off included
4.1Editor score
1. Dial UL7500 Concentric – Best Overall Evaporative Cooler Pump
Dial UL7500 Concentric
Noncorrosive housing
Built-in screen
Removable base
115V power
The Dial UL7500 Concentric stands out as a reliable choice for standard evaporative coolers. With a solid 4.5 star rating from users, this pump delivers consistent performance thanks to its noncorrosive housing and built-in protective screen.
Pros
- Durable flame-retardant motor housing
- Easy maintenance with removable base
- Built-in screen prevents clogging
- Reliable brand reputation
- Standard voltage compatibility
Cons
- Requires manual inspection of screen
- Basic design lacks extra features
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Its flame-retardant motor housing ensures safety during extended operation while the removable base plate makes cleaning straightforward. The built-in optional bleed-off port allows for precise water flow control when needed for your system.
While it lacks some advanced features found in newer models, the simplicity of this design means fewer parts to fail. The standard 115V operation ensures compatibility with most home installations without requiring special wiring.
This pump is ideal for homeowners seeking a proven, no-frills replacement that prioritizes durability over extra bells and whistles. It remains a top recommendation for those valuing reliability and ease of maintenance in their cooling system.
Durable Motor Protection
The flame-retardant housing shields the motor from heat and moisture, extending the pump lifespan significantly even in harsh operating conditions.
Simple Maintenance
Removing the base plate allows quick access to the internal components for cleaning without needing specialized tools or complicated disassembly steps.
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2. Dial MC8500UL High-Efficiency – High Performance Evaporative Cooler Pump
Dial MC8500UL High-Efficiency
Thermal overload protection
Low noise operation
Corrosion resistant shaft
Medium CFM range
The Dial MC8500UL offers enhanced efficiency with thermal overload protection designed for units between 4000 and 8500 CFM. Its 4.3 star rating reflects solid performance and durability for medium-sized evaporative cooling systems.
Pros
- Thermal protection for longevity
- Quiet performance for homes
- Corrosion resistant bearings
- Includes mounting brackets
- Mesh filter bag included
Cons
- Slightly higher price point
- Specific CFM range limitations
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Engineered for quiet performance, this pump ensures a comfortable environment without distracting noise levels. The corrosion-resistant shaft and bearings guarantee consistent operation over time even with hard water or humid conditions.
Installation is simplified with durable mounting brackets and a mesh filter bag included in the package. However, buyers should verify their unit's CFM rating to ensure it falls within the supported range for optimal performance.
This pump suits those needing a reliable upgrade for mid-capacity coolers where noise reduction and safety features are priorities. The thermal protection adds peace of mind during hot summer days when systems run continuously.
Quiet Operation Design
The engineering focus on noise reduction makes this pump suitable for residential offices or living spaces where sound levels matter for comfort.
Included Accessories
Mounting brackets and a filter bag come standard, reducing extra costs and ensuring immediate setup without visiting a hardware store for parts.
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3. Little Giant CP1-115 – Best for Versatile Cooling Evaporative Cooler Pump
Little Giant CP1-115
1/70 HP motor
307 GPH flow
Snap-off volute plate
Universal tubing fit
The Little Giant CP1-115 is a versatile pump designed for various applications including swamp coolers and sales displays. With a 4.3 star rating, it balances power and efficiency for smaller to medium systems effectively.
Pros
- High quality fan-cooled motor
- Snap-off plate for cleaning
- Fits 5/8 and 3/4 tubing
- Included discharge adapter
- Corrosion resistant shaft
Cons
- Lower flow rate than larger models
- Requires specific voltage check
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Its snap-off volute plate makes cleaning incredibly easy allowing users to remove sediment quickly. The one-piece corrosion resistant steel shaft ensures longevity and reliability even with continuous water circulation.
While the flow rate is moderate at 307 GPH, it supports units ranging from 5000 to 7500 CFM comfortably. The included 45-degree discharge adapter adds flexibility for non-standard installations without extra adapters.
This pump is perfect for DIYers who need a straightforward replacement that fits standard tubing sizes. The fan-cooled motor provides consistent performance without overheating during extended run times.
Easy Cleaning Mechanism
The snap-off design of the volute plate allows maintenance without tools, keeping the pump free of debris that could impede water flow.
Flexible Installation
Fitting both 5/8 and 3/4 inch tubing means this pump adapts to existing setups without needing to replace old piping or connectors.
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4. 6017050 Replacement – Best Budget Evaporative Cooler Pump
6017050 Replacement
Fits MC18M models
Thermal protection
Easy installation
Durable components
The 6017050 Replacement Pump offers an excellent entry-level option for specific cooler models like MC18M and MFC1600. With a 4.5 star rating, it provides reliable performance at a very competitive price point.
Pros
- Thermally protected from overheating
- Quick connect installation
- Affordable price point
- Fits specific models well
- Reliable operation
Cons
- Limited model compatibility
- Requires panel removal for install
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Thermal protection ensures the unit shuts off safely if it runs dry preventing motor damage. The quick connect mechanism simplifies replacement by allowing you to disconnect the old pump and install the new one rapidly.
Installation does require removing the back case and disconnecting the panel but the steps are straightforward. Users appreciate the durable components that ensure long-lasting operation without frequent replacements.
This pump is ideal for budget-conscious buyers needing a direct replacement for compatible units. The balance of cost and functionality makes it a strong contender for those prioritizing value over extra features.
Safety Thermal Protection
Running dry protection automatically cuts power to the motor preventing burnout when water levels drop unexpectedly in the cooling tank.
Quick Connect System
The quick connect interface reduces installation time significantly compared to models requiring complex wiring or screw adjustments.
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5. 6060050 Ultra Quiet – Quiet Operation Evaporative Cooler Pump
6060050 Ultra Quiet
Fits MC61M models
Dry burn protection
Ultra quiet
Reliable operation
The 6060050 Ultra Quiet Pump targets users who prioritize silence during operation. Rated 4.6 stars, it stands out for its low noise profile while maintaining efficient water circulation for compatible cooler units.
Pros
- Extremely quiet performance
- Dry burn protection included
- Compatible with specific units
- High user satisfaction
- Easy installation process
Cons
- Specific to limited models
- Requires panel access
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Dry burning protection adds an essential layer of safety preventing the motor from overheating if water levels drop. This feature is crucial for preventing costly repairs in units that lack automatic water level sensors.
Installation follows the same basic steps as other replacements removing the back case and swapping the quick connect panel. The durability of the components ensures this pump lasts even with regular seasonal use.
If your goal is a cool environment without the hum of an old motor this pump is an excellent choice. It balances affordability with critical safety features that protect your investment effectively.
Silent Operation
Designed specifically for noise reduction this pump allows your cooling system to run without disturbing quiet hours or focused work periods.
Safety First
The dry burn protection acts as a guardian ensuring that even if the tank runs dry the motor remains safe from irreversible damage.
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6. DIAL 1387 UL15000 – High Capacity Evaporative Cooler Pump
DIAL 1387 UL15000
Highly durable
Easy handling
Easy installation
Standard voltage
The DIAL 1387 UL15000 offers a robust solution for those needing a simple and durable pump replacement. With a 4.5 star rating users appreciate its straightforward design and reliable operation over time.
Pros
- Highly durable construction
- Easy to handle
- Simple installation steps
- Reliable performance
- Proven brand quality
Cons
- Limited detailed specs online
- Basic feature set
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Manufactured for durability this pump handles standard evaporative cooling tasks without issue. The ease of handling and installation means you can swap out old units quickly without professional help.
While specific flow ratings are not highlighted in the main description the model number suggests it targets higher capacity systems. The basic design ensures that fewer parts mean fewer potential points of failure.
This pump is recommended for users who value proven durability and simplicity over advanced features. It serves as a solid workhorse for systems that require consistent circulation without unnecessary complexity.
Simple and Durable
The focus on durability ensures that the pump withstands seasonal wear and tear without requiring frequent maintenance or repairs.
Quick Installation
Its design prioritizes ease of use allowing even novice users to replace a faulty pump with minimal frustration or time investment.
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7. UL11000 Submersible – Best Submersible Evaporative Cooler Pump
UL11000 Submersible
100% submersible
Bottom suction intake
Ultra quiet
Dry-burn protection
The UL11000 Submersible Pump redefines ease of use with its fully submersible design rated 4.6 stars. This feature allows the entire unit to sit underwater without fear of short circuits or motor damage.
Pros
- Fully submersible design
- Bottom suction intake guard
- Ultra quiet operation
- Dry-burn protection
- Fits most coolers
Cons
- Requires specific tank size
- Slightly higher cost
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Its bottom suction intake pulls water from where sediment settles preventing clogs that affect traditional pumps. Combined with a debris guard this pump maintains efficiency even in water with higher mineral content.
Installation is straightforward requiring no special tools or skills. The built-in dry-burn protection ensures safety by shutting off the pump automatically if water levels drop too low during operation.
This pump is perfect for those wanting a modern upgrade that minimizes maintenance and maximizes reliability. The universal fit ensures compatibility with most industrial commercial and portable cooling units.
Submersible Safety
Being 100% submersible eliminates the worry of water touching the motor preventing common failures associated with non-submersible designs.
Debris Prevention
The full-perimeter intake grille traps debris before it enters the system extending the pump life and reducing cleaning frequency significantly.
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8. UL7500 Swamp Pump – Best Compact Evaporative Cooler Pump
UL7500 Swamp Pump
Fits 528 GPH
Fully submersible
Compact design
Dry-burn protection
The UL7500 Swamp Pump stands out with a perfect 5.0 star rating highlighting its exceptional reliability. Its compact design makes it ideal for coolers with limited tank space where larger units cannot fit.
Pros
- Perfect 5.0 star rating
- Submersible and safe
- Compact for tight spaces
- Dry-burn protection
- Universal compatibility
Cons
- Compact size may limit flow
- Basic feature set
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Like the larger UL11000 it is fully submersible eliminating water level worries during operation. The bottom suction intake and debris guard work together to maintain smooth flow and prevent clogs effectively.
Dry-burn protection adds an essential safety layer ensuring the motor is not damaged if water levels drop unexpectedly. This feature is critical for continuous use during the hottest days of summer.
This pump is recommended for DIY homeowners needing a reliable compact replacement for their existing units. The simplicity and quality control reflected in the rating make it a top choice for value seekers.
Space Saving Design
The compact footprint allows installation in smaller tanks or tight compartments where standard pumps would simply not fit properly.
Reliable Safety
With a perfect rating users trust the built-in safety features to protect their investment without requiring extra monitoring or sensors.
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9. Little Giant CP3-115 – Best Premium Evaporative Cooler Pump
Little Giant CP3-115
1/30 HP motor
563 GPH flow
Corrosion resistant shaft
High CFM support
The Little Giant CP3-115 represents a premium option with a high flow capacity of 563 GPH. Rated 4.5 stars it delivers the power needed for large units ranging from 15000 to 21500 CFM effectively.
Pros
- High flow capacity
- Corrosion resistant shaft
- Professional grade motor
- Snap-off volute plate
- Universal mounting options
Cons
- Higher price point
- Larger footprint
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Its high quality concentric fan-cooled motor ensures longevity even under heavy duty conditions. The one-piece corrosion resistant steel shaft prevents rust and wear ensuring consistent performance year after year.
Snap-off volute plates make cleaning easy while universal mounting configurations adapt to various cooler sizes. The 45-degree discharge adapter included in the box adds flexibility for tricky installation scenarios.
This pump is best for users with large cooling systems who need maximum flow and durability. The higher price is justified by the professional grade construction and reliable performance.
High Flow Performance
The powerful motor supports large CFM ranges ensuring adequate water distribution even across massive cooling pads in industrial settings.
Heavy Duty Build
Professional grade materials ensure this pump handles continuous operation in demanding environments without overheating or wearing out.
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10. Little Giant 542005 – Professional Grade Evaporative Cooler Pump
Little Giant 542005
1/30 HP motor
Universal mounting
Thermal protection
Bleed-off included
The Little Giant 542005 offers a heavy duty solution with a 1/30 HP motor designed for robust performance. With a 4.1 star rating users appreciate its power and versatility for larger evaporative cooling systems.
Pros
- Professional grade motor
- Universal mounting configs
- Thermal overload protection
- 90 degree elbow included
- Heavy duty design
Cons
- Lower rating than newer models
- Requires specific setup
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It features universal mounting configurations allowing it to fit various setups without custom modifications. Thermal overload protection ensures safety and longevity even during extended high-demand cooling periods in summer.
The 90-degree barbed elbow with bleed-off adds installation flexibility for those needing to redirect flow easily. However the lower rating suggests some users found it slightly less convenient than newer designs.
This pump suits users needing a proven professional grade motor for high-flow systems. Its durability and power make it a strong contender despite the slightly higher price point than generic alternatives.
Professional Power
The 1/30 HP motor delivers consistent high performance suitable for commercial or large residential units requiring strong water circulation.
Installation Flexibility
Including a barbed elbow with bleed-off allows users to customize their plumbing setup for better flow control within their system.
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Buying Guide – How to Choose the Best Evaporative Cooler Pump
Selecting the right pump requires balancing flow rate, durability, and specific features that match your cooler unit and water conditions.
Flow Rate (GPH)
Flow rate measured in Gallons Per Hour (GPH) determines how much water the pump moves. You need a higher GPH for larger coolers with higher CFM ratings to ensure the pads stay wet and cooling remains effective.
Check your cooler unit CFM rating to select a pump GPH that matches or slightly exceeds its requirements for optimal performance.
Motor Durability
The motor is the heart of the pump and its quality dictates longevity. Look for motors with thermal overload protection or fan cooling to prevent burning out during hot weather or long run times.
Prioritize models with corrosion resistant shafts and durable housing to extend the lifespan of your investment significantly.
Noise Levels
Some pumps can be quite loud which may disrupt home or office environments. If quiet operation matters to you look for pumps specifically labeled as ultra quiet or designed for low noise performance.
Read user reviews to gauge real-world noise levels before purchasing to ensure comfort in your living space.
Submersibility
Modern pumps often feature fully submersible designs that allow the entire unit to sit underwater. This design prevents water from reaching electrical connections and motor parts reducing the risk of short circuits.
Choose a submersible pump if your tank design or water level makes submersion unavoidable for safe operation.
Protection Features
Safety features like dry burning protection are critical for modern pumps. These sensors shut off the motor when water levels drop too low preventing motor damage from running dry.
Always verify that the pump you choose includes thermal or dry burn protection to avoid costly repairs later.
Installation Ease
Easy installation saves time and effort. Look for pumps with quick connect terminals snap off plates, or included mounting brackets. These features simplify the replacement process significantly.
Ensure the pump dimensions fit inside your cooler tank before buying to avoid issues with physical space.
Compatibility
Not every pump fits every cooler. Check specific model compatibility like MC18M or general voltage requirements. Using a mismatched pump can lead to poor performance or physical fit issues.
Confirm your cooler model matches the pump specifications before ordering to ensure a perfect fit.
Brand Reputation
Trusted brands often provide better quality control and customer support. Established names like Dial and Little Giant have years of experience in pump manufacturing ensuring reliability.
Research brand reviews to verify that the company stands behind their products with warranties or support if issues arise.
How to Use and Care for Your Evaporative Cooler Pump
Always turn off power to your cooling unit before attempting any maintenance or installation to ensure safety from electrical shock. This simple step prevents accidental startup while you are working inside the tank.
Clean the intake and impeller regularly to remove sediment and debris that can clog the system. Use a soft brush or cloth to clear any buildup without damaging the plastic or metal components.
Check water levels before seasonal use to ensure the pump has enough water to prevent dry running damage. A full tank with a clean filter bag extends the pump lifespan and maintains efficiency.
Frequently Asked Questions
How do I know which pump fits my cooler?
To determine the right pump check your cooler model number and CFM rating. Most replacement pumps list compatible models like MC18M or CFM ranges. Measure your tank size to ensure the pump dimensions fit comfortably inside.
Can I use a standard pump for a swamp cooler?
Yes standard pumps work for swamp coolers if they match the flow rate and voltage requirements. Ensure the pump is rated for continuous operation and has thermal protection for safety during summer months.
Why is my pump making noise?
Noise often indicates a worn bearing or debris caught in the impeller. Check for blockages in the intake screen and ensure the pump is fully submerged to reduce vibration and sound levels.
How long do evaporative cooler pumps last?
With proper maintenance pumps typically last between 3 to 5 years. Regular cleaning and avoiding dry running can significantly extend their service life beyond the average expectation.
Do all pumps have thermal protection?
Not all pumps include built-in thermal or dry burn protection. Always check product specifications for safety features before purchasing to ensure your motor is protected from overheating issues.
Can I install a pump myself?
Most pumps are designed for DIY installation with simple steps like disconnecting the quick connect and removing the old pump. Basic tools and safety precautions are usually all you need for a quick replacement.
Final Thoughts on Choosing the Best Evaporative Cooler Pump
We have reviewed ten top options ranging from budget-friendly replacements to professional grade models like the Little Giant CP3-115. Each offers distinct advantages depending on your cooler size and specific needs.
Prioritize flow rate and safety features like dry burn protection when making your decision. These factors ensure your system runs reliably throughout the summer without unexpected failures.
Remember that prices fluctuate often so check current listings for the best deals before buying. This guide provides the necessary insights to make a confident choice for your cooling system.