The F40PH-2CAT CT97 Thunder Box is a type of United States Train Sim World locomotive that uses a Caterpillar generator. The F40PH-2CAT CT97 is a variation of the F40PH locomotive, which has been rebuilt, converted, and remanufactured many times. 

Explanation 

• The F40PH-2CAT is a variation of the F40PH locomotive.
• The F40PH-2CAT uses a Caterpillar generator.
• The F40PH-2C is a similar variation that uses a Cummins generator.
• Transit agencies have lengthened their F40PH locomotives to include a separate HEP generator.

Manufacturer of F40PH-2CAT CT97

Electro-Motive Diesel

General Motors Diesel