The Mercruiser 7.4 Circulating Water Pump is a marine-grade pump designed for efficient coolant circulation in 7.4L engines. It ensures optimal engine cooling by maintaining consistent water flow through the system. This durable pump is built to withstand harsh marine environments and prolonged use.

The Mercruiser 7.4 Circulating Water Pump is designed for marine applications. Key specifications include:

Size: Typically fits 7.4L (454ci) Mercruiser engines.

Grade: Marine-grade construction for corrosion resistance.

Viscosity: Compatible with standard marine engine coolants (ethylene or propylene glycol-based).

Buoyancy: Not applicable (non-buoyant component).

Material: Housing is usually cast iron or aluminum; impeller is made of neoprene, stainless steel, or composite materials.

Flow Rate: Varies by model, typically 50-70 GPM (gallons per minute).

Mounting: Bolt-on design with standard marine engine compatibility.

Seal Type: Mechanical seal for watertight operation.

Drive Type: Belt-driven (serpentine or V-belt depending on configuration).