A Yamaha one-foot main bus harness. This harness is used to connect multi-hubs to each other, to connect a multi-hub to a motor (along with an inline hub and a pigtail harness) and connecting a multi-hub to a DEC binnacle.

Available in 1', 10', 15', 20', 25' and 30' lengths. 

Yamaha Part #6Y8-82553-01-00