Engine specifications
The L600 engine was designed for heavy-duty, continuous operation and was paired with different generator heads for various applications.
Engine Model: L600, a slow-speed, single-cylinder engine.
Horsepower: The L600 engine is rated at 12.5 hp.
Engine Speed: 1800 rpm, a low operating speed that contributes to its durability.
Engine Cooling: Varies by setup. The engine was sold in both air-cooled and liquid-cooled configurations (which could be freshwater or direct water-cooled).
Fuel: Originally ran on gasoline, but some might be converted to other fuels.
Reliability: Considered a very durable engine, with some documented examples having tens of thousands of hours of use.
Generator ratings (model 2M21)
The 2M21 model designation is a sub-spec for the complete generator set, which likely includes the generator head. The total output capacity for an L600-driven set can range depending on its configuration.
Maximum AC Output: Typically between 6.5 and 7.5 kW, depending on the generator head and engine governor settings.
AC Voltage: Commonly rated for 120/240V output.
Frequency: 60 Hz.
Marine Use: Many L600/L654 models were configured as marine generators, including versions with freshwater cooling.