The Yanmar 3YM20 Raw Water Pump is a marine pump designed for cooling diesel engines by circulating seawater.

It features a durable construction with replaceable impellers for easy maintenance and reliable performance.

This pump ensures efficient heat exchange, preventing engine overheating in marine applications.

The Yanmar 3YM20 Raw Water Pump is designed for marine applications. Key specifications include:

- Size: Compact, typically matching OEM dimensions for Yanmar 3YM20 engines.

- Grade: Marine-grade construction for saltwater and freshwater use.

- Viscosity: Suitable for low-viscosity fluids like seawater or coolant.

- Buoyancy: Not applicable (non-floating component).

- Material: Typically made from corrosion-resistant materials like stainless steel, bronze, or reinforced composites.

- Flow Rate: Approximately 20-30 liters per minute (varies by model).

- Impeller Material: Often nitrile rubber or similar durable elastomers.

- Shaft Material: Stainless steel or ceramic for longevity.

- Operating Temperature Range: -10°C to 90°C (14°F to 194°F).

- Pressure Rating: Low-pressure system, typically under 3 bar (43.5 psi).

- Mounting: Direct bolt-on compatibility with Yanmar 3YM20 engines.