The water pump on a Mercruiser 3.0 is a marine-grade impeller pump that circulates coolant to prevent engine overheating.

It is typically located on the front of the engine and driven by a belt connected to the crankshaft.

Regular maintenance, including impeller replacement, is essential for reliable performance in saltwater or freshwater environments.

The Water Pump on a Mercruiser 3.0 typically includes the following key specifications and technical properties:

Size: Approximately 4-5 inches in diameter, with a housing designed to fit the Mercruiser 3.0 engine.

Grade: Marine-grade components, designed for saltwater and freshwater use.

Viscosity: Compatible with standard marine engine coolants and water.

Buoyancy: Not applicable (submerged operation depends on engine installation).

Material: Housing is typically made of corrosion-resistant aluminum or stainless steel; impeller is often neoprene or nitrile rubber.

Impeller Type: Flexible rubber vanes for efficient water circulation.

Mounting: Bolt-on design, secured to the engine block or front cover.

Flow Rate: Varies by model but typically supports 20-30 gallons per minute (GPM).

Pressure Rating: Operates at low pressure, primarily for coolant circulation.

Seal Type: Mechanical seal or lip seal to prevent leaks.

Compatibility: Designed specifically for Mercruiser 3.0L engines.