The Baldwin DRS-6-4-660, known in France as the A1AA1A 62000, is a road switcher diesel-electric locomotive built by Baldwin Locomotive Works between 1946 and 1948.

The DRS-6-4-660s were powered by a naturally aspirated six-cylinder diesel engine rated at 660 horsepower (492 kW), and rode on a pair of three-axle trucks in an A1A-A1A wheel arrangement.

106 of these models were built for railroads in Morocco and France.

DRS - Diesel Road Switcher 6 - Six axles 4 - Four powered axles 660 - 660 horsepower