It is always hazardous to state 'all X is Y'
The best I can say is I haven't seen a wrench in that type that is numbered Qxxx that someone stated was for something else.
Ideally , one should work only from a list of particular (Q) numbers whose purpose is known, but I have never seen such a list for Dodge.....(hint)
I would be very wary making that statment for any other type of wrench as well, farm wrenches for example use all kinds of weird letter/number combinations, there are probably Q something farm wrenches *somewhere* (Bus may know)
As to the ebay wrench, I see these too often to value them much over a dollar or two....
