Minneapolis Steel & Machinery Co. 1902 – 1929 Twin City tractor serial numbers Updates provided by: Tony Thompson 2005, 2006 ----------------------------------------------------------- Twin City 40-65 1910 – 1924 *1001 – 1809…40 – 65 & 60 – 90 “A” 7 ¼ x 9 bore / stroke 1810 – 1820…40 – 65 “A” 7 ¼ x 9. 1821 – 1825…40 – 65 “B” 7 ¾ x 9. ----------------------------------------------------------- ----------------------------------------------------------- Twin City 15–30 1913 – 1917 5001 – 5478 TD & TF engines 4 ¾ x 7. Early model used horizontal crossmotor, late model used vertical inline motor. ----------------------------------------------------------- ----------------------------------------------------------- Twin City 25–45 1913 – 1920 2501 – 2646 horizontal crossmotor, 6 x 8 2647 – 2673 vertical crossmotor, 6 x 8 2701 – 2797 vertical inline motor, 6 x 8 2801 – 3126 vertical inline motor, 6 ¼ x 8 ----------------------------------------------------------- ----------------------------------------------------------- Twin City 60–90 1916 – 1921 *1001 – 1809 40–65 & 60–90 7 ¼ x 9 six cylinder. * these tractors fell under the same numbers. ----------------------------------------------------------- ----------------------------------------------------------- Twin City 16–30 1917 – 1919 5501 – 6203 5 x 7 ½ 589ci. 702 made. ----------------------------------------------------------- ----------------------------------------------------------- Twin City 12–20 1918 – 1926 twin cam 16 valve 4 cyl. 4 ¼ x 6 340ci. 9,019 made 10201 – 18733 numbers allocated to Dec. 4th 1925. 18734 – 19219 numbers used from 12/5/1925 to May 16th 1926 ----------------------------------------------------------- ----------------------------------------------------------- Twin City 12-20 with FE (21-32) engine 12 made 1925 only 20001 - 20012 ----------------------------------------------------------- ----------------------------------------------------------- Twin City 20–35 1920 – 1926 3201 – 4097 twin cam 16 valve 4 cyl. 5 ½ x 6 ¾ 641 ci. 897 made ----------------------------------------------------------- ----------------------------------------------------------- Twin City also entered motor truck production in 1919 with a 2 ton and 3 ½ ton. ----------------------------------------------------------- ----------------------------------------------------------- Twin City 17–28 1926 – 1935 11,589 made Updated – re-rated 12-20 twin cam 16 valve 4 cyl 4 ¼ x 6 340 ci. 1926- 19220 to 21405 2,186 1927– 21406 to 24028 2,623 1928- 24029 to 27686 3,658 1929- 27687 to 30103 2,417 1930- 30104 to 30281 178 1931- 30282 to 30298 17 1932- 30299 to 30309 11 1933- 30310 to 30333 24 1934- 30334 to 30762 429 1935- 30763 to 30808 46 ----------------------------------------------------------- ----------------------------------------------------------- Twin City 21-32 1926 – 1928 302 made 4 ½ x 6 4 cyl 381 ci. (2 forward gears) These tractors are an FE (21-32) engine in a 17-28 type chassis, however, Several castings are different, and have FT #’s on them. 1926, 1927 150001 – 150062 1928 150063 – 150302 ----------------------------------------------------------- ----------------------------------------------------------- Six experimental 21-32’s made X1 – X6 (3 forward gears) Has 3 speed regular production 21-32 chassis Made between 1926 – 1929 ----------------------------------------------------------- ----------------------------------------------------------- Twin City 27–44 1926 – 1935 839 made. Updated - re-rated 20-35 twin cam 16 valve 4cyl. 5 ½ x 6 ¾ 641 ci. 1926 , 1927 - 250001 to 250398 399 1928 , 250399 to 250672 274 1929 , 250673 to 250730 58 1930 , 250731 to 250796 66 1931 , 250797 to 250799 3 1932 , no production 0 1933 , no production 0 1934 250800 to 250805 6 1935 , 250806 to 250839 34 ----------------------------------------------------------- **** The following Twin City designs were assembled by **** **** MM after the 1929 merger **** ----------------------------------------------------------- Twin City 21–32 FT 1929 – 1934 3,973 made 3 speed transmissions were now std. equipment 4 ½ x 6 381 ci 1929 - 150303 to 151796 1,494 1930 - 151797 to 154073 2,277 1931 – 154074 to 154123 50 1932 - 154124 to 154129 6 1933 - no production 0 1934 - 154130 to 154275 146 ----------------------------------------------------------- ----------------------------------------------------------- KT 1929 – 1934 4 ¼ x 5 283 ci. 2,052 made 1929 – 300001 – 300079 79 1930 – 300080 – 301583 1,504 1931 – 301584 – 301956 347 1932 – 301957 – 301981 25 1933 – 301982 – 301987 6 1934 – 301988 – 302078 91 ----------------------------------------------------------- ----------------------------------------------------------- LT 1930 4 ¼ x 5 283 ci 10 made all shipped to Argentina 1930 – 500001 – 500010 ----------------------------------------------------------- ----------------------------------------------------------- KTO 1931 only 4 ¼ x5 283ci. 25 made 301863 – 301864 2 301867 – 301881 15 301883 – 301890 8 ----------------------------------------------------------- ----------------------------------------------------------- MT 1930 – 1934 4 ¼ x 5 283 ci. 420 made 1930 – 525001 – 525020 20 1931 – 525021 – 525095 75 1932 – 525096 – 525334 239 1933 – 525335 – 525345 11 1934 – 525346 – 525420 75 ----------------------------------------------------------- ----------------------------------------------------------- FT-I 1932 – 1934 4 ½ x 6 381 ci. 29 made 1932 – 46001 – 46004 4 1933 – no production 0 1934 – 46005 – 46029 25 ----------------------------------------------------------- ----------------------------------------------------------- KT-I 1932 – 1935 4 ¼ x 5 283 ci. 9 made 1932 40001 1 1933 40002 – 40004 3 1934 40005 – 40008 4 1935 40009 1 ----------------------------------------------------------- ----------------------------------------------------------- KTA 1934 – 1938 4 ¼ x 5 283 ci. 4,542 made 1934 – 302200 – 302371 172 1935 – 302372 – 303825 1,464 1936 – 303826 – 304701 876 1937 – 304702 – 306281 1,580 1938 – 306282 – 306751 450 ----------------------------------------------------------- ----------------------------------------------------------- MTA 1934 – 1938 4 ¼ x 5 283 ci. 3,045 made 1934 – 525421 – 525490 70 1935 – 525491 - 526118 628 1936 – 526119 – 526960 842 1937 – 526961 – 528049 1,089 1938 – 528050 – 528465 596 ----------------------------------------------------------- **Note: KTA and MTA evolved into MM U ----------------------------------------------------------- FTA-I 1935 – 1937 4 5/8 x 6 403 ci. 45 made 1935 – 46030 1 1936 – 46031 – 46046 16 1937 – 46047 – 46074 28 ----------------------------------------------------------- ----------------------------------------------------------- FTA 1935 – 1938 4 5/8 x 6 403 ci. 2,950 made 1935 – 154300 – 155381 1,082 1936 – 155382 – 156247 886 1937 - 156248 – 156908 661 1938 – 156909 – 157229 321 ----------------------------------------------------------- ***Note: FTA evolved into MM GT (END)