Onan Generator Engine Cooling Pumps

Onan generator engine cooling pumps play a critical role in maintaining safe operating temperatures and ensuring long‑term reliability for marine generators. These pumps circulate seawater or freshwater through the generator’s cooling system, preventing overheating and protecting internal components from thermal stress. Designed specifically for Onan marine generator models, these cooling pumps deliver consistent flow, corrosion resistance, and dependable performance in demanding saltwater environments.

CLR Marine offers a curated selection of OEM‑grade and high‑quality replacement cooling pumps engineered to match Onan specifications. Whether you’re maintaining a compact genset or a larger diesel generator, these pumps provide the durability and efficiency needed to keep your cooling system running smoothly. From raw water impeller pumps to complete engine cooling assemblies, our inventory supports a wide range of Onan generator models used in recreational boats, commercial vessels, and offshore applications.

Explore our selection to find the right cooling pump for your Onan generator and keep your onboard power system performing at its best.