The boat engine oil pump circulates lubricating oil to ensure smooth operation and reduce friction in marine engines.

Marine pumps are designed to handle water, fuel, or oil transfer, supporting various onboard systems and operations.

Both are critical for maintaining engine efficiency and safety in marine environments.

Boat Engine Oil Pump:

- Size: Typically 1.5" to 4" inlet/outlet

- Grade: API CF-4, CG-4, or higher

- Viscosity: SAE 15W-40 or SAE 30

- Buoyancy: N/A (submerged or engine-mounted)

- Material: Cast iron, aluminum, or stainless steel

Marine Pumps (General):

- Size: 0.5" to 6" inlet/outlet

- Grade: Varies (bilge, fuel, water, etc.)

- Viscosity: Depends on fluid (e.g., fuel pumps handle low-viscosity fluids)

- Buoyancy: Optional for bilge pumps (float switches)

- Material: Bronze, stainless steel, or thermoplastic