Mercedes-Benz M19 engine

The Mercedes-Benz M19 is a naturally aspirated 3.8 litre straight-eight piston engine designed, developed and produced by Mercedes-Benz in 1932 and 1933, a short production run of two years. Its applications are listed as the Mercedes-Benz 380 S in its W10 and W19 forms, so the engine is tied to the same works designations as the cars it powered. The 3.8 litre displacement and straight-eight layout place it among the eight-cylinder engines Mercedes-Benz built in the early 1930s, alongside the related M22 of 1933 and 1934 and the supercharged M24 that followed it.