This is a 24" three-blade fiberglass replacement propeller for PolarCool evaporative coolers built around the Vosterman motor. It's the part you need when your existing prop is cracked, chipped, or no longer moving the air it used to.
Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
Fiberglass propellers hold up well in the wet, corrosive environment inside an evaporative cooler cabinet, which is exactly why PolarCool spec'd this material for the 6403-5612. The three-blade layout is matched to the Vosterman motor's output, so airflow and balance stay consistent with the original equipment. This is a direct-fit replacement part, not a universal prop, so confirming your motor SKU before ordering matters.
Critical Fitment & Requirements
- Diameter: 24 inches
- Blade count: 3
- Material: Fiberglass
- Compatible with: PolarCool evaporative cooling models using the Vosterman motor (SKU 3017-0050), 2014 and newer
- Does NOT fit: PolarCool models manufactured before 2014
- Does NOT fit: motors other than the Vosterman motor (SKU 3017-0050)
Key Benefits
- Fiberglass blade construction resists moisture and corrosion inside the cooler cabinet
- Three-blade design matched to the Vosterman motor's original airflow specification
- Direct replacement part — no motor or housing modification required
- Straightforward shaft-mount installation for DIY replacement
| Spec | Value | Unit |
|---|---|---|
| Type | Replacement Propeller | — |
| Diameter | 24 | in |
| Blade Count | 3 | — |
| Material | Fiberglass | — |
| Compatible Motor | Vosterman (SKU 3017-0050) | — |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- Fits PolarCool evaporative cooling models equipped with the Vosterman motor (SKU 3017-0050), built 2014 or later
- Does NOT fit PolarCool models produced before 2014
- Does NOT fit motors other than the Vosterman motor (SKU 3017-0050)
| Consideration | Detail |
|---|---|
| Material Safety | Fiberglass blade — handle edges with gloves during installation to avoid fiber irritation [NEEDS VERIFICATION] |
| Power Safety | Disconnect power to the cooler before removing or installing the propeller |
FAQ
Will this propeller fit my PolarCool cooler?
It fits PolarCool evaporative cooling models that use the Vosterman motor (SKU 3017-0050) and were produced from 2014 onward. It is not designed for older models or motors other than the Vosterman.
What size is this propeller?
It's a 24-inch diameter, 3-blade propeller made from fiberglass.
Do I need a professional to install this?
No. Disconnect power to the cooler, remove the old propeller from the motor shaft, align and secure the new one, then restore power and test it. It's designed for straightforward DIY replacement.
Can I use this on a motor other than the Vosterman?
No. This propeller is engineered specifically for the Vosterman motor (SKU 3017-0050) and is not intended for other motor types.
Warranty & Registration
Manufacturer warranty terms were not provided in source data. Refer to the "Resources (System Manuals and Warranty)" Tab above on this page for full warranty and registration details. Ask us before you order if you need confirmation on coverage for your specific unit — we always reply back.
