Replacement Propellers for the Deicers
Description
Restore Water Movement With the Correct Replacement Propeller
Has your Kasco de-icer propeller taken years of abuse from weeds, sticks, ice, debris, or normal seasonal use? A worn, chipped, cracked, or damaged prop can reduce water movement and cause your de-icer to operate less efficiently.
These genuine Kasco replacement propellers are designed as direct replacement props for compatible 1/2 HP, 3/4 HP, and 1 HP Kasco De-Icers.
Choosing the correct propeller matters. Each horsepower uses its own propeller design, pitch, and Kasco part number. Match the replacement prop to your de-icer horsepower before ordering.
Available options include a 2-blade propeller for 1/2 HP de-icers, a 2-blade propeller for 3/4 HP de-icers, and a 4-blade propeller for 1 HP de-icers.
Match the Prop to the De-Icer Horsepower
A Damaged Prop Can Reduce De-Icer Performance
Your de-icer depends on the propeller to create the water movement that brings warmer subsurface water toward the surface.
If a blade becomes chipped, cracked, bent, heavily worn, or otherwise damaged, the prop may move less water than intended. Damage can also create vibration or wobble while the motor is running.
Replacing a damaged Kasco deicer propeller can restore proper water movement and smooth operation when the propeller itself is the cause of the performance problem.
Before every winter season, inspect the propeller along with the cage, shaft area, sacrificial anode, cord, and mounting hardware.
Restore Water Flow
A replacement prop can restore de-icer water movement when the original propeller is worn or physically damaged.
Designed for the Correct Unit
Each Kasco replacement propeller is engineered for its associated horsepower and de-icer model family.
Freshwater or Saltwater
These Kasco replacement propellers are designed for use in freshwater, brackish-water, and saltwater applications.
Serviceable Replacement Part
The reverse-threaded prop design allows the correct propeller to be replaced when maintenance is required.
Need a complete replacement unit? Shop Kasco Dock De-Icers .
Compatibility
Which Kasco De-Icer Propeller Do I Need?
The easiest way to choose the correct replacement propeller is to identify the horsepower and model number on your Kasco De-Icer.
| De-Icer Size | Common Model Family | Propeller | Kasco Part Number |
|---|---|---|---|
| 1/2 HP | 2400D | 2-Blade Propeller | 240170 |
| 3/4 HP | 3400D / 3400HD | 2-Blade Propeller | 340125K |
| 1 HP | 4400D / 4400HD | 4-Blade Propeller | 440430 |
How to Find Your De-Icer Size
- Look for the model label on the motor housing or power-cord identification information.
- 2400-series de-icers are 1/2 HP.
- 3400-series de-icers are 3/4 HP.
- 4400-series de-icers are 1 HP.
- If the label is damaged or unreadable, contact Weeders Digest before ordering.
Need help matching the part? Contact Weeders Digest Product Support or call 877-224-4899.
Features
Kasco Replacement Propeller Features
Genuine Kasco Replacement
Designed specifically for the associated Kasco motor size rather than using a generic aftermarket propeller.
Reverse-Threaded Design
Kasco replacement propellers use reverse threading for installation on the motor shaft.
Saltwater Durable
Suitable for freshwater, brackish-water, and saltwater de-icing applications.
Horsepower-Specific
Each propeller is matched to the hydraulic load and performance requirements of its associated de-icer size.
When to Replace
Signs Your Kasco De-Icer Propeller May Need Replacement
Propellers operate in an environment where weeds, sticks, ice, fishing line, debris, rocks, and other underwater objects can cause gradual or sudden damage.
Chipped Blade
Missing material changes the shape and balance of the propeller and can reduce water movement.
Cracked Propeller
A visible crack can continue to spread under load and should not be ignored.
Excessive Vibration
A damaged or unbalanced prop can cause noticeable vibration or wobble during operation.
Reduced Water Movement
If the cage is clear and the motor is operating normally but circulation is weaker, inspect the prop for damage.
Rounded or Worn Blade Edges
Long-term abrasion from sand, suspended material, or debris can gradually alter blade condition.
Impact Damage
A strike against a rock, dock component, stick, or other solid object can damage the propeller even if the motor still runs.
Installation
Replacing a Kasco De-Icer Propeller
The propeller is a serviceable part, but the de-icer must be fully disconnected from electrical power before any work begins.
- Disconnect the de-icer from power.
Unplug the unit and make sure it cannot accidentally be energized while you are working. - Remove the de-icer from the water.
Perform propeller replacement on a stable, dry work surface. - Inspect the cage and propeller area.
Remove weeds, fishing line, debris, or other material wrapped around the shaft or propeller. - Confirm your replacement prop.
Compare the de-icer horsepower and model family with the replacement part before removing the original propeller. - Access the propeller.
Remove or reposition the protective cage components as required to safely reach the propeller. - Remember the propeller is reverse threaded.
Do not force the propeller as though it uses conventional threading. Follow the applicable Kasco service procedure for removal and installation. - Install the new propeller securely.
Make sure the replacement prop is fully seated and correctly installed on the shaft. - Inspect the sacrificial anode.
While the propeller area is accessible, check the zinc anode and replace it if it is significantly depleted. - Reassemble the cage.
Confirm all protective components and mounting hardware are secure before returning the de-icer to service. - Return the de-icer to the water before operation.
Never test or run the de-icer dry on a dock, shoreline, or workbench.
Specifications
Kasco De-Icer Replacement Propeller Specifications
| Product Type | Replacement propeller for compatible Kasco De-Icers |
|---|---|
| Available Sizes | 1/2 HP, 3/4 HP, and 1 HP |
| 1/2 HP Propeller | 2 blade |
| 1/2 HP Part Number | 240170 |
| 1/2 HP Model Family | 2400-series De-Icers |
| 3/4 HP Propeller | 2 blade |
| 3/4 HP Part Number | 340125K |
| 3/4 HP Model Family | 3400-series De-Icers |
| 1 HP Propeller | 4 blade |
| 1 HP Part Number | 440430 |
| 1 HP Model Family | 4400-series De-Icers |
| Thread Style | Reverse threaded |
| Water Compatibility | Freshwater, brackish water, and saltwater applications |
| Quantity | 1 replacement propeller per selected option |
Maintenance
Inspect the Propeller Before Every De-Icing Season
A quick inspection before winter can catch propeller damage before the de-icer is installed under a dock or in difficult winter conditions.
Inspect the Blades
Look for cracks, chips, missing sections, distortion, or unusual wear.
Clear the Cage
Remove weeds, leaves, sticks, fishing line, plastic, and other debris that could restrict water movement.
Check the Anode
Inspect the sacrificial zinc anode around the propeller shaft and replace it when significantly depleted.
Clean the Motor Housing
Remove heavy buildup from the motor housing so the submerged motor can properly transfer heat to the surrounding water.
Need a new anode? Shop Zinc Anodes for Kasco De-Icers .
Related Tools
Products That Work With the De-Icer Replacement Propellers
Accessories and complementary Weeders Digest products to get more from your De-Icer Replacement Propellers.
Zinc Anode for Kasco De-icers
A replacement zinc anode for Kasco de-icers.
Why it fits: Replace the anode during the same maintenance visit.
Shop Zinc Anode for Kasco De-icersDock Deicer | Kasco Marine De-Icers
Kasco marine de-icers for dock protection.
Why it fits: Shop the full de-icer line.
Shop Dock DeicerKasco De-Icer Thermostat Controller | C-20 Model
Controls a de-icer by air temperature and time of day.
Why it fits: Reduce run time and wear on your de-icer.
Shop Kasco De-Icer Thermostat ControllerFAQs
Kasco De-Icer Replacement Propeller FAQs
How do I know which replacement propeller my Kasco De-Icer needs?
Match the replacement prop to your de-icer horsepower. The 1/2 HP uses part 240170, the 3/4 HP uses part 340125K, and the 1 HP uses part 440430.
Which propeller fits a 2400D Kasco De-Icer?
The 2400D is a 1/2 HP de-icer and uses the 2-blade Kasco replacement propeller, part number 240170.
Which propeller fits a 3400D or 3400HD Kasco De-Icer?
The 3400-series de-icers are 3/4 HP and use the 2-blade replacement propeller, part number 340125K.
Which propeller fits a 4400D or 4400HD Kasco De-Icer?
The 4400-series de-icers are 1 HP and use the 4-blade replacement propeller, part number 440430.
What is the difference between the 2-blade and 4-blade props?
The blade design is matched to the horsepower of the unit. The 1/2 HP and 3/4 HP de-icers use their designated 2-blade propellers. The 1 HP de-icer uses its designated 4-blade propeller.
Can I put a 1 HP propeller on a 3/4 HP de-icer?
No. Use the propeller specified for your de-icer horsepower. Propeller design affects motor loading and water movement.
Are Kasco replacement propellers reverse threaded?
Yes. Kasco specifies these replacement propellers as reverse threaded. Keep this in mind during removal and installation so you do not damage the propeller or shaft by forcing it in the wrong direction.
Can these propellers be used in saltwater?
Yes. Kasco replacement propellers are designed for use in saltwater as well as freshwater applications.
Can a damaged propeller reduce de-icer performance?
Yes. A chipped, cracked, worn, or unbalanced propeller can reduce water movement and may cause vibration or wobble. Inspect the propeller if de-icer circulation drops unexpectedly.
Why is my Kasco De-Icer moving less water than before?
Check for weeds, leaves, fishing line, plastic, or other debris blocking the propeller or cage. Also inspect the prop for chips, cracks, or other damage. Reduced flow can have more than one cause.
Should I replace a chipped propeller?
Yes. A visibly damaged propeller should be replaced rather than continuing to operate the de-icer with an unbalanced or compromised blade.
Can I run the de-icer briefly out of the water after replacing the prop?
No. Do not operate the Kasco De-Icer dry. Complete the repair, reinstall the protective components, place the de-icer back in the water, and then return it to service.
Should I inspect anything else while replacing the propeller?
Yes. Inspect the sacrificial zinc anode, motor shaft area, protective cage, mounting hardware, and power cord while the unit is out of the water.
Is the propeller covered under the Kasco De-Icer warranty?
Kasco lists propellers as wear items excluded from its standard equipment warranty. Inspect and replace the propeller when damage or wear requires it.
Can I use an aftermarket propeller?
Using the correct Kasco replacement propeller ensures the propeller design is matched to the motor size and intended water-moving performance of the de-icer.
Where can I get Kasco services or help identifying my propeller?
For Kasco services, replacement-part questions, troubleshooting, or help identifying the correct Kasco deicer propeller, contact Weeders Digest Product Support at 877-224-4899.
Support
Not Sure Which Kasco Replacement Propeller You Need?
Before ordering, confirm your Kasco De-Icer horsepower or model number. If the equipment label is damaged, missing, or difficult to read, Weeders Digest can help you identify the correct replacement part.
Have Your Model Number Ready
Model numbers such as 2400D, 3400D, 3400HD, 4400D, and 4400HD make identifying the correct prop much easier.
Check Your Horsepower
The most important selection is 1/2 HP, 3/4 HP, or 1 HP.
Inspect Related Parts
If the propeller was damaged by debris or impact, inspect the cage, shaft, anode, and mounting system before putting the de-icer back into service.
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