Allis Chalmers U
Production ended · 2WD
Belt power · claimed
31 hp
Power
Power specifications| Engine | no record |
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| PTO | no record |
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| Drawbar | 20 hp claimed |
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| Drawbar, tested | 30.4 hp |
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| Belt pulley | 31 hp claimed |
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| Belt pulley, tested | 35 hp |
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| Listed power | 34 hp belt basis |
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| Plows rated | 3 |
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Engines
Engines fitted to the Allis Chalmers U| Continental 4.6L 4-cyl gasolineGasoline · 4 cyl | 284 ci |
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| Waukesha 4.9L 4-cyl gasolineGasoline · 4 cyl | 301 ci |
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| Allis-Chalmers 5.2L 4-cyl gasolineGasoline · 4 cyl | 318 ci |
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Engine details
- Continental 4.6L 4-cyl gasoline
- Bore × stroke
- 4.25 in × 5 in
- Rated speed
- 1,200 rpm
- Cooling
- liquid-cooled
- Waukesha 4.9L 4-cyl gasoline
- Bore × stroke
- 4.38 in × 5 in
- Rated speed
- 1,200 rpm
- Cooling
- liquid-cooled
- Notes
- The UM engine was used beginning in 1932, tractor serial number 7405.
- Allis-Chalmers 5.2L 4-cyl gasoline
- Bore × stroke
- 4.5 in × 5 in
- Rated speed
- 1,200 rpm
- Cooling
- liquid-cooled
- Notes
- Final engine, available in 1936 (SN 12001)
Transmissions
Transmissions for the Allis Chalmers U| 3-speed | 3F / 1R |
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| 4-speed | 4F / 1R |
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Transmission notes
4-speed: The four-speed transmission was offered on tractors equipped with rubber tires.
Weight
Weight specifications| Weight | 4,600 lb unspecified |
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Dimensions
Dimensions specifications| Wheelbase | no record |
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| Length | 118.5 in |
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| Width | 63.1 in |
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| Height | 53.5 in |
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Capacities
Capacities specifications| Fuel tank | 24 gal |
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Hydraulics
Hydraulics specifications| Pump flow | no record |
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Hitch
Hitch specifications| Rear lift capacity | no record |
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Chassis
Chassis specifications| Drive | 2WD |
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Tires
Tires specifications| Front | 28x6 |
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| Rear | 42x11 |
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Production
Production specifications| Total built | 19,009 |
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| Factories | West Allis, Wisconsin, USA |
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| Built by | Allis Chalmers |
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