Allis-Chalmers U Specs ( 1929-1952 )
Production
| Description | Standard-tread tractor / Built in West Allis, Wisconsin, USA |
|---|---|
| Manufacturer | Allis Chalmers |
| Total built | 19,009 |
Engine
| Engine type | 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) |
| Bore/Stroke | 4.25x5.00 inches (108 x 127 mm) / 4.375x5.00 inches (111 x 127 mm) / 4.50x5.00 inches (114 x 127 mm) |
| Coolant capacity | 20 qts (18.9 L) |
| Description | Continental / gasoline / 4-cylinder / liquid-cooled / Waukesha UM / gasoline / 4-cylinder / liquid-cooled / The UM engine was used beginning in 1932, tractor serial number 7405. / Allis-Chalmers UM / gasoline / 4-cylinder / liquid-cooled / Final engine, available in 1936 (SN 12001) |
| Displacement | 283.7 ci (4.6 L) / 300.7 ci (4.9 L) / 318 ci (5.2 L) |
| Rated RPM | 1200 / 1200 / 1200 |
| Engine type | Continental 4.6L 4-cyl gasoline / Waukesha 4.9L 4-cyl gasoline / Allis-Chalmers 5.2L 4-cyl gasoline |
| Belt (claimed) | 31 hp (23.1 kW) |
| Belt (tested) | 35.04 hp (26.1 kW) |
| Drawbar (claimed) | 20 hp (14.9 kW) |
| Drawbar (tested) | 30.37 hp (22.6 kW) |
| Plows | 3 (14-inch) |
Transmission
| Description | The four-speed transmission was offered on tractors equipped with rubber tires. |
|---|---|
| Gears | 3 forward and 1 reverse / 4 forward and 1 reverse |
| Transmission type | 3-speed / 4-speed |
| Transmission type | 3-speed / 4-speed |
Mechanical
| Drive type | Two-wheel drive |
|---|
Dimensions & Tires
| Ag front | 28x6 steel / 6.00x16 |
|---|---|
| Ag rear | 42x11 steel / 12.75x24 |
| Height | 53.5 inches (135 cm) |
| Length | 118.5 inches (300 cm) |
| Weight | 4,600 lbs (2086 kg) |
| Width | 63.1 inches (160 cm) |
| Front tire | 28x6 |
| Rear tire | 42x11 |
| Weight | 4,600 lbs (2086 kg) |
Nebraska Tractor Test 170
| Belt fuel use (max) | 4.2 gal/hour (15.9 l/hour) |
|---|---|
| Belt power (max) | 35.04 hp (26.1 kW) |
| Description | Contintental 3-speed 2WDOctober 21 - November 7, 1929Link: Nebraska Tractor Test 170 file / Drawbar performance / Gear 1 used for power test. / Gear 1 used for pull test. |
| Max power | 25.63 hp (19.1 kW) |
| Max pull | 3,679 lbs (1668 kg) |
Nebraska Tractor Test 237
| Belt fuel use (max) | 4.1 gal/hour (15.5 l/hour) / 4.1 gal/hour (15.5 l/hour) |
|---|---|
| Belt power (max) | 34.12 hp (25.4 kW) / 34.12 hp (25.4 kW) |
| Description | Waukesha 300 3-speed 2WD steel wheelsJuly 15 - August 5, 1935Link: Nebraska Tractor Test 237 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. / Waukesha 300 3-speed 2WD rubber wheelsJuly 15 - August 5, 1935Link: Nebraska Tractor Test 237 file / Drawbar performance / Gear 4 used for power test. / Gear 2 used for pull test. |
| Max power | 23.83 hp (17.8 kW) / 30.37 hp (22.6 kW) |
| Max pull | 3,428 lbs (1554 kg) / 2,452 lbs (1112 kg) |
Tractor Tests
| Description | NTTL 170: Contintental 3-speed 2WD / NTTL 237: Waukesha 300 3-speed 2WD steel wheels / NTTL 237: Waukesha 300 3-speed 2WD rubber wheels |
|---|
U Serial Numbers
| 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 |
| Description | FAQ: How to read a serial number table. |
| Location: | Rear of differential, near PTO |
Variants
| U | standard |
|---|---|
| UC | row-crop |