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Twin City Forty, 1909, 7 x 10 in. bore / stroke. 5 made.
Small radiator and fully enclosed cab.

Twin City 40-65, 1910 – 1924
*1001 - 1820...40-65 early and type "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
Introduced in 1914 company records as a 60-95 or 60-110 with some confusion.
*1001 – 1820 60–90 7 ¼ x 9 six cylinder TE engine.
* these tractors fell under the same numbers. Total 60-90 production is unknown.

Twin City Twentieth Century, 12-24, 1914-1917
10001 – 10100 6x8 two cyl. opposed TK engine
Made for Canadian market. Total production estimate is 100 units.

Twin City 16-30, 1917 – 1920
5501 – 6503 , 5 x 7 ½ , 589 ci. TL engine, 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, 8800 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 11,808 made
Updated – re-rated 12-20 , twin cam 16 valve 4 cyl. 4 ¼ x 6, 340 ci

1926 - 19001 to 21405 - 2,405 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 - 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– 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 1928

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

OT 1931 4 ¼ x5, 283 ci., 26 made (orchard KT)

301863 – 301864 - 2 units built
301867 – 301881 - 15
301883 – 301890 - 8
301946 - 1

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 (industrial 21-32)

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

IT 1932 – 1936 4 ¼ x 5, 283 ci. 9 made (industrial KT)

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 (industrial FTA)

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

 


The following MM designs were produced, and sold
by Minneapolis Moline

JT 1934 – 1937 3 5/8 x 4 3/4, 196 ci. 6,244 made

1934 – 550001 – 550025 - 25 units built
1935 – 550026 – 551762 - 1,737
1936 – 551763 – 554554 - 2,892
1937 – 554555 – 556244 - 1,800

JTS 469 made

1936 – 600001 – 600322 - 322 units built
1937 – 600323 – 600469 - 147

JTO 157 made

1935 – X108, one made 1
1936 – 625001 – 625103 - 103 units built
1937 – 625104 – 625156 - 53

ZT 1936 3 5/8 x 4 1/2, 185 ci. 37 made

1936 – 560001 – 560037

ZTI 1936 3 5/8 x 4 1/2, 185 ci., 3 made

1936 – 599001 – 599003

The first 40 1936 MM Z’s appeared in gray paint and used an early version of the 185 ci side valve engine with clutch housing spacer as shown below.

Twin City Tractors & Parts Identification
Using Casting Numbers

Minneapolis Steel & Machinery Co. had a simple and effective way of identifying the cast iron components on the different models of successful tractors they produced during a lengthy 30 year production run. Excluding the heavyweight lineup there were several popular models made from 1918 through 1938.

All cast iron TC engine and chassis parts have a two letter prefix in front of the casting numbers. There are many combinations of part numbers following the two letter prefix on castings that can be explained in greater detail in parts manuals. If you memorize the first two letters from various models you can identify a cast iron Twin City tractor part off of an auction rack or a salvage yard parts pile anywhere, anytime and know if it is an engine part or a chassis part.

1918 - 1935 twin cam series including 12-20 & 17-28. Cast iron engine parts numbers for these models begin with TW. Chassis part numbers for baby twin cams begin with TY.    
                                                      
1920 - 1935 big twin cams including 20-35 & 27-44. Engine part number prefix for these models are AE. Chassis part numbers prefix is AT.           
           
1926 - 1938 21-32 engine prefix is FE. Chassis prefix is FT.

1929 - 1938 KT & MT engine prefix is KE. Chassis prefix is KT.
KT & MT models used the same 283 ci. engine. There are a few dedicated chassis parts that make the MT different from the KT and will have an MT prefix on them.          

1934 - 1937 model J was designed by Minneapolis Moline after the TC-MM merger and used an outsourced Waukesha engine. MM did retain Twin City prefix ideas making the engine JE and the chassis JT.

Email for more info or comments: rustywheel@deskmedia.com

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