The Water Pump Impeller for Mercruiser Inboard engines is a critical marine pump component designed to circulate cooling water efficiently. It features durable rubber blades that ensure reliable performance and prevent overheating in marine engines. This impeller is specifically engineered for compatibility with Mercruiser inboard systems, offering optimal water flow and longevity.

Size: Varies (commonly 4-6 inches in diameter)

Grade: Marine-grade

Viscosity: N/A (impeller-specific, but typically operates with marine coolant/water mixtures)

Buoyancy: Negligible (submerged operation)

Material: Nitrile rubber (NBR) or neoprene (common), stainless steel or bronze (housing)

Rotation: Clockwise or counterclockwise (model-dependent)

Blade Count: Typically 6-12 vanes

Operating Temp: -20°F to 250°F (-29°C to 121°C)

Max RPM: 3,500-5,000 (varies by model)

Compatibility: Mercruiser inboard/sterndrive engines

Seal Type: Mechanical or lip seal (housing-dependent)