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Allis ChalmersModel A
Allis Chalmers D12
Row Crop
- power
- 31 hp
- displacement
- 149 ci
- Cylinders
- 4
- Forward gears
- 4
Head to head · Row Crop
Allis Chalmers D12 vs White Field Boss 31
WhiteModel B
White Field Boss 31
Utility
- power
- 30 hp
- displacement
- 91.4 ci
- Cylinders
- 3
- Forward gears
- 12
Allis ChalmersAllis Chalmers D12
vs
WhiteWhite Field Boss 31
How they compare
Headline specs vs. the whole Row Crop
Engine Power
▲ D12 higher · +1 hp (+3%)D1231 hp
Field Boss 3130 hp
Median Row Crop Tractor138 hp
D12 is in the 3rd percentile; Field Boss 31 is in the 2nd · 1,206 models
Engine Displacement
▲ D12 higher · +57.6 ci (+63%)D12149 ci
Field Boss 3191.4 ci
Median Row Crop Tractor391 ci
D12 is in the 4th percentile; Field Boss 31 is in the 1st · 1,409 models
Cylinders
▲ D12 higher · +1 (+33%)D124
Field Boss 313
Median Row Crop Tractor6
D12 is in the 17th percentile; Field Boss 31 is in the 2nd · 1,417 models
Forward Gears
▲ Field Boss 31 higher · +8 (+200%)D124
Field Boss 3112
Median Row Crop Tractor16
D12 is in the 4th percentile; Field Boss 31 is in the 27th · 1,200 models
D12 (A)Field Boss 31 (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | White | — |
| Model | D12 | Field Boss 31 | — |
| Category | Row Crop | Utility | — |
Engine
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Manufacturer | Allis-Chalmers | Isuzu | — |
| Model | Power-Crater | Not recorded | — |
| Power Output | 31hp | 30hp | ▲ D12+1 hp · +3% |
| Rated RPM | 1,650RPM | 2,600RPM | ▲ Field Boss 31+950 RPM · +58% |
| Cylinders | 4 | 3 | ▲ D12+1 · +33% |
| Displacement | 149ci | 91.4ci | ▲ D12+57.6 ci · +63% |
| Bore | 3.5in | 3.4in | ▲ D12+0.1 in · +3% |
| Stroke | 3.9in | 3.4in | ▲ D12+0.5 in · +15% |
Transmission
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Type | Sliding Gear | Partially Synchronized | — |
Dimensions & Weight
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Length | 121in | 116in | ▲ D12+5 in · +4% |
| Width | Not recorded | 52in | — |
| Height | 76.5in | 80in | ▲ Field Boss 31+3.5 in · +5% |
| Operating Weight | 2,800lb | 2,215lb | ▲ D12+585 lb · +26% |
Hydraulics
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| System Type | Live | Open Center | — |
| Steering Type | Manual | Manual | Same |
Power Take-off (PTO)
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Type | Rear | Not recorded | — |
| Speed 1 | 540rpm | Not recorded | — |
Tires
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Front Tire Size | Not recorded | 5.00-15 | — |
| Rear Tire Size | Not recorded | 11.2-24 | — |
Hitch & Towing
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Hitch Type | Snap-Coupler | Category I | — |
| Hitch Category | I | Not recorded | — |
| Hitch Position | Rear | Rear | Same |
Chassis & Drive
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | Not recorded | — |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Manual | Manual | Same |
Electrical
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric Starter | — |
Capacities
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Coolant | 2gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers D12 | White Field Boss 31 | Difference |
|---|---|---|---|
| Type | Open | Open | Same |
Category context
Both models against the field
Engine Power
median 138 hpA · 3rd percentile (31 hp)B · 2nd percentile (30 hp)
Engine Displacement
median 391 ciA · 4th percentile (149 ci)B · 1st percentile (91.4 ci)
Cylinders
median 6A · 17th percentile (4)B · 2nd percentile (3)
Forward Gears
median 16A · 4th percentile (4)B · 27th percentile (12)
Operating Weight
median 12,307 lbA · 2nd percentile (2,800 lb)B · 1st percentile (2,215 lb)
A · D12B · Field Boss 31Median Row Crop Tractor