In 1920, Penn Machine Company (PMC) began as a coal company and pioneered the manufacture of quality replacement parts for coal mining equipment. Over the years, the company has grown to become a major supplier of heavy-duty OEM and aftermarket components for transit, railroad, mining, steel, construction and general industrial applications.

Penn Locomotive is a leading supplier of locomotive gearing and starter gears to the world’s railroads. Its product lines include the carburized and hardened Super Gear™. This premium product is recognized as the standard in the railroad industry