[truszip]

I'm looking to replace the motor brushes on my Kenmore Model 116 vacuum cleaner. I used it as a bit of a shop vac and totally filled it with dust, now it's sparking at the brushes, I'm thinking there gone? Anyway - I took it all apart and cleaned the whole thing out but it's still doing it, but before I throw the thing out I thought I'd try and replace the brushes but I can't seem to find a part number for these. Can anybody help - it's states model #116 with the numbers 28095200C beside it. Serial number D53105025, Class C-D9, 12 amps.
Thanks.