Marine Impellers for Boat Engine Cooling Pumps

Marine impellers are critical components used inside raw water pumps to circulate cooling water through boat engines and marine systems. These flexible vane rotors create suction that draws seawater or freshwater into the pump and pushes it through the engine cooling circuit, preventing overheating and maintaining proper operating temperature.

CLR Marine supplies a wide range of high-quality marine impellers designed for reliable performance in harsh marine environments. Whether you are performing routine maintenance or replacing a worn impeller, selecting the correct replacement ensures proper water flow and protects your engine from costly damage.

Key Features of Our Marine Impellers

• Over 300 impeller and pump repair kit options
• Compatible with Scot, Jabsco, Oberdorfer, Yamaha, Suzuki, Honda, Mercury, and Volvo Penta engines
• MC97, nitrile, and neoprene materials for varied applications
• ARCO Marine, Johnson Pump, and Raritan OEM‑quality replacements
• Impellers for outboards, sterndrives, and raw‑water pumps
• Complete water pump repair kits for fast, reliable servicing
• Designed for optimal cooling flow and engine protection
• Corrosion‑resistant and wear‑resistant construction
• Suitable for routine maintenance and emergency replacements

FAQs

1. How do I know which marine impeller fits my engine?

Match the impeller to your engine brand, model, and pump series. Most listings specify compatible Yamaha, Suzuki, Honda, Mercury, or Volvo Penta applications.

2. What is the difference between MC97, nitrile, and neoprene impellers?

MC97 offers excellent durability and flexibility, nitrile is ideal for oil‑contaminated environments, and neoprene provides strong performance for general raw‑water cooling.

3. How often should a marine impeller be replaced?

Most manufacturers recommend replacement every 1–2 seasons, or sooner if you notice reduced water flow, overheating, or visible wear during inspection.

Also, see Jabsco, Globe Marine, Scot Pump and more