@Rich Melvin posted:Just so we’re all on the same switch list here, the locomotive under discussion here is an “SD40” not an “SD-40.” EMD did not use dashes in the basic model numbers. They did use them in the “Dash 2” series, as in SD40-2.
IIRC Lionel printed it as "SD-40" on the box. We just use what they call it.