Marine Engine Cooling Pumps & Raw Water Pumps for Diesel and Gas Engines

Marine engine cooling pumps are the heart of every onboard cooling system, circulating raw seawater or freshwater through the engine block or heat exchanger to maintain safe operating temperatures. This category features one of the industry’s most comprehensive selections of OEM‑grade engine cooling pumps, raw water pumps, crankshaft‑driven pumps, magnetic‑drive pumps, impellers, and repair kits.

With over 300+ products available, CLR Marine offers premium solutions from trusted manufacturers including Albin Group, Jabsco, JMP Marine, Dometic, and OEM‑specific replacements for Caterpillar, Detroit Diesel, Kohler, Volvo, Cummins, and more.

Choose from bracket‑mount, flange‑mount, serpentine‑belt‑driven, and crankshaft‑driven pumps engineered for high flow rates, corrosion resistance, and long‑term reliability in harsh marine environments. Many pumps are direct replacements for popular generator and propulsion engines, including Kohler 4–12.5 kW models, Caterpillar C2.2/C4.4, Detroit Diesel 271/353/453/471/6‑71/8V92/16V92 series, and numerous Jabsco cross‑references.

Supporting components such as impeller kits, repair kits, seals, and gaskets ensure easy maintenance and extended pump life. Whether you’re performing routine service or replacing a failed pump, these marine‑grade cooling solutions deliver dependable performance for both recreational and commercial vessels.

Key Features & Benefits

• Wide selection of OEM‑compatible cooling pumps for diesel and gas engines
• Direct replacements for Caterpillar, Detroit Diesel, Kohler, Volvo, Cummins, and more
• High‑flow bronze and stainless‑steel pump bodies for maximum durability
• Crankshaft‑driven, flange‑mount, bracket‑mount, and serpentine‑belt options
• Magnetic‑drive pumps available for air‑cooled and specialty applications
• Complete impeller kits and repair kits for fast, cost‑effective maintenance
• Engineered for saltwater, freshwater, and mixed cooling environments
• Designed to maintain optimal engine temperature and prevent overheating
• Trusted brands including Jabsco, JMP Marine, Albin Group, and Dometic
• Ideal for generators, propulsion engines, commercial fleets, and yachts

FAQs

1. What types of marine engine cooling pumps are available?

This category includes raw water pumps, crankshaft‑driven pumps, flange‑mount pumps, bracket‑mount pumps, magnetic‑drive pumps, and OEM‑specific replacements for major diesel and gas engines.

2. How do I know which cooling pump fits my engine?

Match your engine model or OEM part number with the product listing. Many pumps in this category are direct replacements for Caterpillar, Detroit Diesel, Kohler, Volvo, and other major engine families.

3. Do you offer repair kits and impellers for these pumps?

Yes. The category includes a full range of impellers, seals, and major repair kits for Jabsco, JMP Marine, Detroit Diesel, and other pump models, allowing cost‑effective maintenance and rebuilds.