ALCO 539T

The Alco 539T was a diesel prime mover built by the American Locomotive Company.

It began as a straight-six, four-stroke design in a cast block which produced from 810 to 1,000 horsepower (600 to 750 kW).

The 539T was equipped with the Buchi turbocharger, being made under license by the Elliott Manufacturing Company of Jeannette, Pennsylvania.

The 539 engine was developed in response to the perceived drawback that Alco's line of diesel switchers had a restricted field of vision because of the high hood.

Both Baldwin and EMC were offering diesel switchers with a lower engine hood that the trainmen could see over.

Several Alco 539T engines in various states of completion rest at an aggregate facility in Orlando, Florida.