allis chalmers u
![]() | 1929 - 1952
Standard-tread tractor | 1929 - 1952 | Standard-tread tractor |
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1929 - 1952 | |||
Standard-tread tractor |
1929 - 1952 | |
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Standard-tread tractor |
Production | |
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Manufacturer | Allis Chalmers |
Standard-tread tractor | |
Built in West Allis, Wisconsin, USA | |
Total built | 19,009 |
Tractors fitted with factory steel wheels had a 3-speed gearbox, done by removing a shifter fork from the regular transmission. The U was also sold as the United Model U (1929-1931), and was distributed by the United Tractor and Equipment Corporation. United was a group of Fordson dealers who contracted Allis for a new tractor, once Ford stopped North American production of the Fordson. |
Variants | |
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U | standard |
UC | row-crop |
Allis Chalmers U Engines | |
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Continental 4.6L 4-cyl gasoline | |
Waukesha 4.9L 4-cyl gasoline | |
Allis-Chalmers 5.2L 4-cyl gasoline | |
Fuel tank | 24 gal
90.8 L |
Engine details ... ![]() |
Allis Chalmers U Transmissions | |
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3-speed | |
4-speed | |
Transmission details ... ![]() |
Allis Chalmers U Power | |
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Drawbar (claimed) | 20 hp
14.9 kW |
Belt (claimed) | 31 hp
23.1 kW |
Plows | 3 (14-inch) |
Drawbar (tested) | 30.37 hp
22.6 kW |
Belt (tested) | 35.04 hp
26.1 kW |
Performance test details ... ![]() |
Mechanical | |
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Two-wheel drive |
Photos | |
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![]() | |
Allis Chalmers U photos... ![]() |
Dimensions & Tires | |
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Weight | 4,600 lbs
2086 kg |
Front tire | 28x6 |
Rear tire | 42x11 |
Full dimensions and tires ... ![]() |
U Serial Numbers | |
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Location: | Rear of differential, near PTO |
1929 | 1 |
1930 | 1975 |
1931 | 6554 |
1932 | 7262 |
1933 | 7419 |
1934 | 7685 |
1935 | 8063 |
1936 | 9471 |
1937 | 12822 |
1938 | 14855 |
1939 | 15587 |
1940 | 16078 |
1941 | 16722 |
1942 | 17137 |
1943 | 17470 |
1944 | 17802 |
1945 | -unknown- |
1946 | -unknown- |
1947 | 18309, 20174 |
1948 | 18613, 20179, 21000 |
1949 | 20301, 210036, 22018 |
1950 | 20422, 22024 |
FAQ: How to read a serial number table. |
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