The Mercruiser Outdrive Impeller is a critical component in marine cooling systems, responsible for circulating water to prevent engine overheating. Marine pumps, including the impeller, ensure efficient water flow through the engine and outdrive for optimal performance. Regular inspection and replacement of the impeller are essential to maintain reliability and avoid engine damage.

The Mercruiser Outdrive Impeller and Marine Pumps typically have the following specifications:

Size: Varies by model (common sizes include 1.5" to 3" diameter).

Grade: Marine-grade rubber or neoprene.

Viscosity: N/A (impellers are solid components, not fluids).

Buoyancy: Neutral (not designed for buoyancy).

Material: Nitrile rubber (NBR), neoprene, or synthetic elastomers.

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

Pressure Rating: Varies by pump model (typically 10-50 PSI).

Compatibility: Designed for seawater and freshwater use.

Rotation: Clockwise or counterclockwise (model-dependent).

Lifespan: 2-5 years (varies with usage and maintenance).