: The Mega 204 utilized 5 straw walkers providing a total separation area of roughly 5.8 square meters. It often included an intensive separation system with two rows of agitator tines to effectively spread straw and maximize grain recovery.
The machine's operational efficiency was defined by its specialized threshing and separation systems:
At its heart, the Claas Mega 204 was typically powered by a diesel engine, delivering approximately 200 horsepower (147 kW). Some later variants or specific market models utilized updated powerplants, such as the 7.6L OM engine.
: A 6,200-liter grain tank allowed for significant intervals between unloading. When full, the tank could be emptied at a rapid rate of up to 100 liters per second.