The water pump in an inboard boat motor circulates coolant to prevent overheating. Marine pumps are designed to handle saltwater and harsh conditions. Regular maintenance ensures reliable performance and longevity.

Size: Typically ranges from 2 to 6 inches in diameter, depending on the model and application.

Grade: Marine-grade materials, often compliant with ASTM or ISO standards for corrosion resistance.

Viscosity: Compatible with fluids ranging from 10W-30 to 20W-50, depending on the pump type and engine requirements.

Buoyancy: Not applicable, as these pumps are fixed within the boat's hull or engine system.

Material: Constructed from bronze, stainless steel, or high-grade plastics for saltwater resistance.

Flow Rate: Varies between 5 to 50 gallons per minute (GPM), depending on the pump size and motor power.

Pressure Rating: Typically 30 to 100 PSI, suitable for marine cooling and bilge systems.

Power Source: Electric (12V or 24V DC) or mechanical (belt-driven by the engine).

Seal Type: Mechanical seals or lip seals, often made from nitrile or viton for durability.

Mounting: Bolt-on or flange-mounted, designed for secure inboard installation.