Replacing an outboard water pump involves removing the lower unit to access the impeller housing. The old impeller and housing are then replaced with new components to ensure proper cooling. Reassembly and testing confirm the pump's functionality before returning to operation.

Size: Typically ranges from 2.5 to 6 inches in diameter, depending on the model and application.

Grade: Marine-grade materials, often compliant with ASTM or ISO standards for corrosion resistance.

Viscosity: Suitable for fluids with viscosities up to 500 cSt (centistokes).

Buoyancy: Neutral buoyancy in water, depending on material density (e.g., stainless steel or composite).

Material: Stainless steel (316L), bronze, or high-performance composites for corrosion resistance.

Flow Rate: Varies between 20 to 200 GPM (gallons per minute), depending on pump size and design.

Pressure Rating: Typically 50 to 150 PSI, depending on the pump type and application.

Temperature Range: -20°F to 250°F (-29°C to 121°C), suitable for marine environments.

Impeller Type: Flexible or rigid impeller designs, depending on the pump model.

Seal Type: Mechanical or lip seals, often made from nitrile or Viton for durability.

Mounting: Bolt-on or clamp-on configurations for easy installation.

Weight: Ranges from 5 to 30 lbs (2.3 to 13.6 kg), depending on size and material.