Fox Valley Models FVM10121 N Scale Trinity RD-4 Coal Hopper, Union Pacific/Building America 503606 RECSES_2025-12-4_CUR_770 Digitrax decoders feature variable frequency

Digitrax decoders feature variable frequency Supersonic(TM) motor drive for quiet motor operation

and you are running out of connectors

There is cab lighting and engine room lighting in each locomotive half that can be controlled separately in digital operation

Detailed base with sidewalks

• Used in cross-border transport

Fox Valley Models FVM10121 N Scale Trinity RD-4 Coal Hopper, Union Pacific/Building America 503606 RECSES_2025-12-4_CUR_770 Digitrax decoders feature variable frequencyThe Trinity RD 4 Coal hopper is a 4200 cubic foot modern car that was built starting in the mid 1990s, and is still running today. Railroads and public utilities use these aluminum hopper cars in unit trains to bring black diamonds from the coal fields to power plants or ports for export. FVM RD 4 Hopper UP New road numbers Era: 2003 to present Series 503600 503959, Built Oct 03 Jan 04 Fully assembled Multiple road numbers Detailed plastic body Die