This kit is for a "Steam" locomotive. The kit includes a Lionel R2LC Board, Steam Railsounds 4.0 Sound Board and Power Board. There is (1) Coil Coupler included. You will need to measure the length of the old coupler from end to end with the coupler closed so we can send the correct one. We recommend that you call us before you place the order so we can send you the correct kit.