The Mercury Lower Unit Pump is a marine pump designed for efficient water circulation in boat engines. It ensures proper cooling by drawing water into the lower unit and directing it through the engine system. This pump is essential for preventing overheating and maintaining optimal engine performance.

The Mercury Lower Unit Pump is typically designed for marine applications with the following key specifications and technical properties:

Size: Varies by model (commonly 1.5" to 3" inlet/outlet diameters).

Grade: Marine-grade construction for corrosion resistance.

Viscosity: Compatible with fluids ranging from low to medium viscosity (e.g., water, light oils).

Buoyancy: Not applicable (submerged operation in marine environments).

Material: Stainless steel, aluminum, or reinforced composite for durability in saltwater conditions.

Flow Rate: Typically 20-100 GPM (varies by model).

Pressure Rating: 30-100 PSI (depending on application).

Seal Type: Mechanical or lip seal for watertight operation.

Mounting: Bolt-on or integrated with lower unit assembly.

Compatibility: Designed for Mercury outboard and sterndrive systems.