Marine HVAC Coolant Pump
PM300-12
Compact 12V brushless DC marine coolant pump. 5.3 GPM, IP68 rated, 20,000-hour motor life. Ideal for smaller marine HVAC and live well systems.
Key Features
- Brushless DC
- IP68 rated
- 20,000-hour motor life
- Magnetically driven
- No shaft seal
Technical Specifications
Performance
Electrical
Physical
Connections
Identification
Overview
The KoolAir PM300-12 is a compact 12V brushless DC marine pump with IP68 rating and up to 20,000-hour motor life, ideal for smaller marine HVAC systems and live wells.
Key Benefits
- 12V Brushless DC - Efficient brushless motor with no shaft seal to leak or replace.
- IP68 Rated - Fully sealed against water and dust ingress.
- 20,000-Hour Motor Life - Extended service life reduces replacement frequency.
- Magnetically Driven - Sealless design eliminates mechanical seal maintenance.
- Compact Form Factor - 3" × 3" × 3.1" fits tight installation spaces.
Applications
Customer Reviews
Marty Smith
While in Guatemala for hurricane season, AC pump started failing. Thank you for the extra effort to search the warehouse and find the last one! Arrived in a week and we are back to cool air!
Mariana Pezzulo
We have been replacing the March air cooled for this model and has worked fine for the last 5 years. 3 pumps on board.
Jeff Rickels
There are too many things that can go wrong when you're on the water, you need to mitigate risk and making the decision to implement a KoolAir pump helps me do just that.
Shipping & Returns
Orders placed before 2:00 PM EST ship the same business day (in stock). Standard delivery typically takes 3–5 business days; express delivery typically takes 1–3 business days. Delivery times are estimates and are not guaranteed.
Shipping cost is calculated at checkout based on your delivery address. For full details, see our shipping policy.
Not the right fit? Returns are accepted within 30 days. See our returns and refunds policy for details.