1. The letter K: indicates the Cummins K-series engine, with a bore of 159 mm and a piston stroke of 159 mm. The basic model is K19
2. compressor;
< p>3. Letter A: Indicates water and supercharged air cooling4. Number 50: indicates a displacement of 50 L. This engine is a 16-cylinder V-type twin compressor. Engine. Power coverage ranges from 1100 kW to 1750 kW.