For sale Yanmar 3YM20 21 HP Marine Diesel Engine. Engine was professionally removed from a running sailboat and was operational at the time of removal.
ENGINE DESCRIPTION
The 3YM20 is one of Yanmar’s most popular modern auxiliary sailboat engines, known for:
- Excellent fuel economy
- Smooth 3-cylinder operation
- Low vibration and noise
- Long service life and easy maintenance
YANMAR 3YM20 – OEM FACTORY SPECIFICATIONS
Specification Details
- Engine Model : Yanmar 3YM20
- Horsepower : 21 HP @ 3600 RPM
- Cylinders : 3
- Displacement : 1.267 L (1267 cc)
- Bore x Stroke : 75 mm x 72 mm
- Aspiration : Naturally Aspirated
- Fuel System : Mechanical Direct Injection
- Cooling System : Freshwater / Heat Exchanger
- Electrical System : 12V
- Starting : Electric
- Emissions : EPA / RCD Compliant
- Approx. Dry Weight : ~ 233–260 lbs


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