3YM20 Parts

The Yanmar 3YM20 is a modern three-cylinder marine diesel engine widely installed in sailing yachts and small motorboats. Known for smooth operation, fuel efficiency and reliability, the 3YM20 is a popular engine within the Yanmar YM series.

This category contains a complete range of replacement parts for the Yanmar 3YM20 engine, including internal engine components, cooling system parts, fuel system components, electrical items and maintenance products.

Available parts include cylinder head gaskets, seals, thermostats, water pump components, impellers, oil and fuel filters, sensors, engine mounts, belts and complete service kits.

All products listed below are compatible with the 3YM20 engine. If you are unsure about part compatibility, please contact us for assistance.

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