ESU 51951 Cable Harness with 6-Pin Plug (According to NEM651)

if you work on locos and decoders (e.g. run wires from loco to tender), you need thin, extremely flexible cables. These are not always easy to get. Responding to many requests from our customers, as of now we offer you super thin cables (AWG 36) with an outside diameter of only 0.5 mm (0.02 inch), in all common DCC colors. They come in 10 m (30 feet) bundles at an affordable price.

Ifthe loco in question features no digital interface and you don't want to cut off the interface-plug of your loco, simply make use of one of our harnesses

DCC cable colored, super-thin cable comes in 30cm lengths.

Features 1 cable of each color: red, orange, yellow, black, white, and gray.