The Mercruiser Circulating Pump is a marine water pump designed to cool the engine by circulating water efficiently. It ensures optimal engine performance by maintaining proper temperature levels during operation. These pumps are durable, corrosion-resistant, and specifically built for marine environments.

The Mercruiser Circulating Pump and Marine Pumps typically feature the following specifications:

Size: Varies by model (commonly 3-6 inches in diameter).

Grade: Marine-grade construction for saltwater/freshwater use.

Viscosity: Compatible with engine oils (SAE 10W-30, 15W-40) and coolant fluids.

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

Material: Cast iron, aluminum, or stainless steel housing; nitrile or silicone impeller.

Flow Rate: 20-60 GPM (varies by model).

Pressure Rating: 10-30 PSI (depends on application).

Temperature Range: -20°F to 200°F (-29°C to 93°C).

Mounting: Bolt-on or direct drive (engine-specific).

Seals: Mechanical or lip seals for leak prevention.