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I doubt you will ever find original parts for your Montgomery Ward router, but all is not lost. Stanley made many routers for MW, but they discontinued their models many years ago too so finding Stanley brushes that fit will also be nearly impossible.
Brushes are just sticks of hard, pressed together graphite, so any brush that will fit into the brush guides of your router can be made to work. Does the original brush have a wire and spring attached? you will need to find one like that or your job will be much harder. Many of the better mom and pop type hardware stores in the US have a stock of many sizes of brushes. You will need to take one of your brushes with you and try to match up the design, of course your's will be shorter since it's worn out. If you find some that are close in design, but slightly too wide or too thick you can sand them down or even shorten them with a sander (messy job) until they fit into your router. They need to fit, but they need to slide easily.
Central North Carolina
Last edited by CharleyL; 07-10-2014 at 07:47 PM.