This is a new in the box item, never used or tested on any vessel. Comes totally complete with all original parts nuts, bolts, washers. This is for a 1 1/2 shaft. Has 12 mounting holes at the flange base but I believe only 6 would be use in any case, the flange is 4 3/4 across the face of the flange section. Coupling is 4" tall. Shipping is to the United States territories only. For any additional questions please contact me. Fits Borg Warner direct drive transmission