2998 was built in August 1962, #83602, as Alco demonstrator 640-2. It became Chicago & North Western 901 shortly and was traded back to Alco on February 10, 1966. It became Alco Products 901, a lease unit. It was leased to CP as 2998 and was returned to Alco as 901. It was sold to Precision National Corp as 901 in May 1969 and then to Green Bay & Western on May 11, 1976, as 318.  It became Wisconsin Central 318 in 1993 and was sold as Minnesota Commercial 318 in 1994.