The Sierra 18 7818 1 Marine Pump is a high-performance impeller pump designed for marine applications. It ensures reliable water circulation in boat cooling and bilge systems. Made from durable materials, it resists corrosion and withstands harsh marine environments.

Size: 18 inches (457 mm) nominal diameter

Grade: Marine-grade construction

Viscosity Range: Suitable for fluids with viscosities up to 5000 cSt

Buoyancy: Neutral buoyancy design for marine applications

Material: High-strength corrosion-resistant alloy (typically stainless steel or bronze)

Flow Rate: Approximately 500-1000 GPM (1893-3785 LPM) depending on configuration

Pressure Rating: Up to 150 PSI (10.3 bar)

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

Seal Type: Mechanical seal with marine-grade compatibility

Impeller Type: Semi-open or closed design for debris handling

Connection Type: Flanged or threaded marine-standard fittings

Weight: Approximately 85-100 lbs (38-45 kg) depending on material

Compliance: Meets ASTM B584 and MIL-P-17813 standards for marine use