The Boat Impeller Mercruiser is a crucial component in marine pumps, designed to circulate water for engine cooling. It features a durable rubber design with flexible vanes to ensure efficient water flow. Regular inspection and replacement are essential to prevent overheating and maintain optimal engine performance.

Size: Typically ranges from 3.5 to 5 inches in diameter.

Grade: Designed for marine applications, often meeting OEM standards.

Viscosity: Compatible with marine engine oils (e.g., SAE 15W-40 or 20W-50).

Buoyancy: Not buoyant; designed to operate submerged in water.

Material: Commonly made from neoprene, nitrile, or rubber compounds for durability.

Rotation: Clockwise or counterclockwise, depending on engine model.

Hub Type: Keyed or splined for secure attachment to the shaft.

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

Pressure Rating: Designed for standard marine cooling system pressures (up to 30 psi).

Compatibility: Fits Mercruiser Alpha One, Bravo One, and other models.