I have an old one owner Bachmann Plus 4-8-4 Model # 11315 in good condition,but I have had to make a new drawbar for it. A sturdy piece of plastic works fine,but I am anxious to know if the Forum could set me straight on a description of the original one please ?.
If you check the Bachmann Parts HO section you will see the J 4-8-4 is listed, open that list and you will find a picture of the draw bar.
http://estore.bachmanntrains.com/images/ho_parts/821XX-00T03.jpg
I see that they are sold out at the moment, the Bachmann Spectrum SY 2-8-2 uses the same drawbar but the parts department does not have in stock for this engine as well.
Sunny-
A plastic drawbar will be just fine.
-- D