KoolAir Marine HVAC Coolant Pumps with Run-Dry Protection
40+ Years
Decades of fluid handling expertise
ETL Listed
UL recognized for marine safety
Same-Day Ship
Orders placed by 2 PM EST
Drop-In Fit
Direct March pump replacement
The Only Marine AC Pump with Run-Dry Protection
Your marine AC system depends on a coolant pump to circulate seawater and keep the boat cool. Strainers clog. On the water, it's a question of when, not if. When that happens, a conventional pump overheats, melts, and leaves you with no air conditioning and an expensive repair bill.
KoolAir pumps are built with run-dry protection so the pump keeps running through a blockage without damage. Every model is a direct drop-in replacement for March LC and AC series pumps, ETL listed, UL recognized for marine safety, and backed by 40+ years of fluid handling know-how from Manufacturers Edge.
“There are too many things that can go wrong when you’re on the water. You need to mitigate risk, and choosing a KoolAir pump helps me do just that.”
Jeff Rickels
Naples, FL
Shop by Pump Series
Marine HVAC coolant pumps and replacement parts for every installation.
PM500 Series
Compact 115V/230V marine HVAC coolant pump. Run-dry capable.
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PM1000 Series
17.2 GPM high-flow pump for larger vessels and multi-zone systems.
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SPM1000 Series
Fully submersible pump for tight installations below the waterline.
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TPM1000 Series
Dual voltage with ISO 8846 Marine Ignition Protection.
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PM300 Series
12V brushless DC pump. Up to 318 GPH for smaller applications.
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Koolair Replacement Parts
OEM wet end kits, impellers, O-rings, and components.
View ProductsNeed Help Choosing a Pump?
Give us a call or send an email. We've been building marine pumps for over 40 years and can help you find the right fit for your boat.
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