Twin City Forty, 1910, 7 x 10 in. bore / stroke. 5 made.

Twin City 40-65, 1912 – 1924
*1001 - 1820...40-65 "A" 7 1/4 X 9 bore & stroke.
1821 – 1825…40 – 65 “B” 7 ¾ x 9, total production, 700 plus units.

Twin City 15-30, 1913 – 1917
5001 – 5478 TD & TF engines 4 ¾ x 7, total production, 478 units.
Early model used horizontal TD cross-engine, late model used vertical inline TF engine.

Twin City 25-45, 1913 – 1920
2501 – 2646… horizontal cross-engine, 6 x 8
2647 – 2673 …vertical cross-engine, 6 x 8.
2701 – 2797 …vertical inline engine, 6 x 8.
2801 – 3126 …vertical inline engine, 6 ¼ x 8, total production, 626 units.

Twin City 60-90, 1916 – 1921
This model may have been introduced prior to 1916 as a 60-95 or 60-110?
*1001 – 1809 60 – 90 7 ¼ x 9 six cylinder.
* these tractors fell under the same numbers. Total 60-90 production is unknown.

Twin City Twentieth Century, 12-24, 1914-1917
10001 – 10100 made for Canadian market. Total production estimate is 100 units

Twin City 16-30, 1917 – 1920
5501 – 6503 , 5 x 7 ½ , 589 ci., 1,003 made.

Twin City 12-20, 1918 – 1926 twin cam 16 valve 4 cyl. , 4 ¼ x 6, 340 ci.
10201 – 18733, numbers used to Dec. 4 th 1925.
18734 – 19000, numbers used from Dec. 5 th 1925 to 1926, about 9,000 units made

Experimental 12-20 with FE (21-32) engine, 12 made 1925
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.
Total truck production is unknown.

Twin City 17-28, 1926 – 1935 11,800 made
Updated – re-rated 12-20 , twin cam 16 valve 4 cyl. 4 ¼ x 6, 340 ci

1926* - 19000 to 21405 - 2,186 units built
1927 - 21406 to 24028 - 2,623
1928 - 24029 to 27686 - 3,658
1929 - 27687 to 30103 - 2,417
1930 - 30104 to 30281 - 178
1931 - 30334 to 30762 - 429
1932 - 30282 to 30298 - 17
1933 - 30299 to 30309 - 11
1934 - 30310 to 30333 - 24
1935 - 30763 to 30808 - 46
* oldest documented 17-28 is 19023. Re-rating date from 12-20 to 17-28 is not clear, and may be closer to 19000.

Twin City 21-32, 1926– 1927, 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….150001 – 150062
1927….150063 – 150302

Six experimental 21-32’s made X1 – X6 (3 forward gears)
Has 3 speed regular production 21-32 chassis
Made between 1927 – 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 - 250001 to 250158 - 158 units built
1927 - 250159 to 250398 - 239
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 –1935 3,973 made
3 speed transmissions were now std. equipment. 4 ½ x 6, 381 ci.

1929 - 150303 to 151796 - 1,494 units built
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 - 1935 4 ¼ x 5, 283 ci. 2,078 made

1929 – 300001 – 300079 - 79 units built
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. These special order universals used tricycle MT fronts and 12 ½ inch mid-width rear axle housings.

1930 – 500001 – 500010

KTO 1931 4 ¼ x5, 283 ci., 25 made

301863 – 301864 - 2 units built
301867 – 301881 - 15
301883 – 301890 - 8

MT 1930 – 1935 4 ¼ x 5, 283 ci. 420 made

1930 – 525001 – 525020 - 20 units built
1931 – 525021 – 525095 - 75
1932 – 525096 – 525334 - 239
1933 – 525335 – 525345 - 11
1934 – 525346 – 525420 - 75

FT-I 1932 – 1935 4 ½ x 6, 381 ci. 29 made

1932 – 46001 – 46004 - 4 unit built
1933 – no production 0
1934 – 46005 – 46029 - 25

KT-I 1932 – 1936 4 ¼ x 5, 283 ci. 9 made

1932 40001 - 1 units built
1933 40002 – 40004 - 3
1934 40005 – 40008 - 4
1935 40009 - 1

KTA 1934 – 1939 4 ¼ x 5, 283 ci. 4,542 made

1934 – 302200 – 302371 - 172 units built
1935 – 302372 – 303825 - 1,464
1936 – 303826 – 304701 - 876
1937 – 304702 – 306281 - 1,580
1938 – 306282 – 306751 - 450

MTA 1934 – 1939 4 ¼ x 5, 283 ci. 3,225 made

1934 – 525421 – 525490 - 70 units built
1935 – 525491 - 526118 - 628
1936 – 526119 – 526960 - 842
1937 – 526961 – 528049 - 1,089
1938 – 528050 – 528645 - 596

KTA, and MTA evolved into MM U

FTA-I 1935 – 1938 4 5/8 x 6, 403 ci. 45 made

1935 – 46030 - 1 units built
1936 – 46031 – 46046 - 16
1937 – 46047 – 46074 - 28

FTA 1935 – 1939 4 5/8 x 6, 403 ci. 2,930 made

1935 – 154300 – 155381 - 1,082 units built
1936 – 155382 – 156247 - 886
1937 - 156248 – 156908 - 661
1938 – 156909 – 157229 - 321

FTA evolved into MM GT