This is the replacement water pump for PolarCool 18", 24", and 36" evaporative coolers, including the Zone 11K and Pro models. If your cooler is running dry or the pads aren't staying wet, a worn pump is the usual cause — this kit gets water moving again.
Evaporative cooling depends on a pump that reliably moves water from the reservoir to the pads. When that pump wears out or seizes, the pads dry out and cooling performance drops fast — even if the fan still runs fine. This kit is built as a direct replacement for PolarCool's 18", 24", and 36" pump systems, with the fittings and hardware needed to match each model's plumbing. 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.
Critical Fitment & Requirements
- Voltage: 120V pump, matching PolarCool 18", 24", and 36" cooler electrical systems.
- Fits: PolarCool 18" Fan, 24" Fan, 36" Fan, 36" Zone Fan, 36" Fan Single Speed, and 36" Pro Fan.
- Fits: Zone 11K gray rotomolded plastic model.
- Includes all parts, hardware, and an installation manual needed to adapt to each model's specific plumbing fittings.
- Does NOT include confirmed compatibility data for any PolarCool models outside the 18"/24"/36" lineup listed above — [NEEDS VERIFICATION] before ordering for any other model.
Key Benefits
- Genuine PolarCool replacement component, matched to OEM plumbing configurations.
- Universal fit across the 18", 24", and 36" PolarCool platform reduces the risk of ordering the wrong part.
- Kit includes hardware and adapters, not just the bare pump.
- Written installation manual included for step-by-step guidance.
- Restores full water circulation to pads, which is what drives evaporative cooling efficiency.
| Spec | Value | Unit |
|---|---|---|
| Voltage | 120 | V |
| Type | Replacement Water Pump Kit | - |
| Compatible Sizes | 18 / 24 / 36 | in |
| Price (Default Title) | 336.00 | USD |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- Fits: PolarCool 18" Fan, 24" Fan, 36" Fan, 36" Zone Fan, 36" Fan Single Speed, and 36" Pro Fan models.
- Fits: Zone 11K (36" gray rotomolded plastic model).
- Does NOT have confirmed fitment for PolarCool models outside the 18"/24"/36" range named above — check your model plate against these names before ordering.
Compliance & Environment
| Item | Detail |
|---|---|
| Electrical | 120V pump — disconnect power to the cooler before installation |
| Installation Skill Level | DIY friendly; no specialized tools required |
Options & SKUs
| Variant | SKU | Price (USD) |
|---|---|---|
| Default Title | 6422-0645 | 336.00 |
FAQ
Does this pump fit my 18" or 24" PolarCool cooler?
Yes. This pump kit is designed to work across the 18", 24", and 36" PolarCool lineup, including the Zone 11K and Pro models.
What voltage is this pump rated for?
It's a 120V pump, matching the standard household voltage used by PolarCool 18", 24", and 36" units.
Does the kit include the fittings I need to connect it to my existing plumbing?
Yes. The kit includes the parts and hardware needed to adapt to each model's specific plumbing fittings, along with an installation manual.
Will this work on the 36" Zone or 36" Pro models specifically?
Yes. The manufacturer lists compatibility with the 36" Zone Fan, 36" Fan Single Speed, and 36" Pro Fan models directly.
Do I need a professional to install this pump?
No. The kit is designed for DIY installation with included hardware and a manual. No specialized tools are required.
Warranty & Registration
Manufacturer warranty terms for this part are not detailed in the supplied data. [NEEDS VERIFICATION] — refer to the "Resources (System Manuals and Warranty)" Tab above on this page for exact warranty coverage and registration steps. Ask us before you order if you need help confirming coverage for your specific model.
