New Yanmar 2GM20 Engine

New Yanmar 2GM20 Engine

The Yanmar 2GM20 is a 2-cylinder, 4-stroke vertical water-cooled marine diesel engine (approx. 0.635 liters) producing a maximum output of 13.4 kW (16-18 hp) at 3600 RPM. Designed for durability, it features indirect injection, a dry weight of 106-114 kg, and is available in raw water (2GM20) or heat exchanger (2GM20F) cooling.

Key Technical Specifications (2GM20 / 2GM20F):

Type: 2-Cylinder, 4-Stroke Vertical Diesel
Maximum Output: 16 – 18 HP (13.4 kW) @ 3600 RPM
Continuous Output: 11.8 kW (16 HP) @ 3400 RPM
Displacement: 635 cc (0.635 L)
Bore x Stroke: 75 mm x 72 mm
Cooling System: Direct sea water cooling or Fresh water (heat exchanger)
Dry Weight: 106 kg (Raw water) / 114 kg (Fresh water/F-model)
Starting System: Electric (12V, 1 kW motor) & Manual
Alternator: 12V, 55A
Transmission (Common): Kanzaki KM2P, 2.62:1 Ratio

General Features:

Combustion: Indirect, swirl-type pre-combustion chamber
Lubrication: Forced lubrication via trochoid pump
Dimensions (Approx): 638 x 455 x 495 mm (2GM20) or 643 x 482 x 545 mm (2GM20F)
Orientation: 2-cylinder, 4-stroke inline

The engine is often equipped with a Kanzaki transmission and a standard 12V/55A alternator for battery charging.