Volkswagen had a remanufacturing facility in Canada some years back, but I am pretty sure it is gone now. Supposedly, at that time, Chrysler also was using the same place (maybe a third party?) I've not gotten anything from there in quite a while though. Lately (as in the last decade) it all comes from Germany, Czech Republic, Mexico, or Turkey.
Not sure where Cummins fits into this, but maybe they too used the place, and still do.