Stewart-Warner was primarily a C&NW customer though the Chicago Switching District listing of industries from 1956 indicates that the Milwaukee road also serviced their south building at Clybourn and Wolcott via trackage rights via the Deering Line.
In 1987 Stewart-Warner was sold and in 1989 production was moved out of Chicago to lower cost facilities in Mexico and elsewhere, forcing the closure of this site. In 1993 the Stewart-Warner headquarters and factory complex burned down in a spectacular fire. Today condos occupy this land.