Bachmann 4-8-4 drive wheel

[mphillips]

My bachmann I just received is about 25 yrs old ,like new no ware marks.  I pulled out of box and the drive wheels came off.  The only thing the box states is OVERLAND 484-UP.  CAN THIS BE FIXED,CAN I BUY NEW DRIVES.  tHE ONLY OTHER MARKINGS ARE ON THE ENGINE,IT SAYS UNION PACIFIC.  THANK YOU..

[ABC]

The only way you can fix it is using Cyanopoxy, this costs $50, which is the same price as a new equivalent loco.
This may have helped you, but it is indefinitely out of stock:
GS4 4-8-4 Drive Wheel Assembly (HO Scale)
Sold Out
    * Model: 502XX-6513
    * Shipping Weight: 0.088lbs
Here's One on Ebay:http://cgi.ebay.com/HO-Bachmann-Union-Pacific-4-8-4-Engine-and-Tender_W0QQitemZ200433683944QQcmdZViewItemQQptZModel_RR_Trains?hash=item2eaac74de8
This resembles your loco right?

[Nigel]

If you are patient, the model can be made to run, but in addition to many hours of your time, it is going to cost you over $100-

You can get another locomotive for about the same price, but the UP Overland is no longer available. It was not an accurate model of a Union Pacific locomotive. So unless there is a great deal of sentimental attachment, I would recommend junking. If there is sentimental reasons, consider using epoxy to put if back together, and using at as a static display piece, like in a park on your layout.

I believe that you have something like this (possibly a different color):
http://cgi.ebay.com/2-U-P-4-8-4-Northerns-for-parts-both-union-pacific_W0QQitemZ160403144772QQcmdZViewItemQQptZModel_RR_Trains?hash=item2558c5c044

One option is a Bowser chassis - the NYC Niagara version, Northern version or GS4 version can be adapted to your model.  Telephone Bowser for availability.
http://bowser-trains.com/hoemrrs/mechanisms/mechanisms.htm

If it were me, I would purchase this:
http://cgi.ebay.com/HO-Bowser-Cast-Brass-Locomotive-Chassis-w-Motor_W0QQitemZ130365967738QQcmdZViewItemQQptZModel_RR_Trains?hash=item1e5a6acd7a
which is NOT a Bowser chassis, and adapt it.  A new motor, flywheel, some NWSL part, and it should work out.