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Allis ChalmersModel A
Allis Chalmers D21 Series I
Row Crop
- power
- 103 hp
- displacement
- 426 ci
- Cylinders
- 6
- Forward gears
- 8
Head to head · Row Crop
Allis Chalmers D21 Series I vs Belarus 900
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BelarusModel B
Belarus 900
Agricultural
- power
- 100 hp
- displacement
- 290 ci
- Cylinders
- 4
- Forward gears
- 18
Allis ChalmersAllis Chalmers D21 Series I
vs
BelarusBelarus 900
How they compare
Headline specs vs. the whole Row Crop
Engine Power
▲ D21 Series I higher · +3 hp (+3%)D21 Series I103 hp
900100 hp
Median Row Crop Tractor138 hp
D21 Series I is in the 27th percentile; 900 is in the 25th · 1,206 models
Engine Displacement
▲ D21 Series I higher · +136 ci (+47%)D21 Series I426 ci
900290 ci
Median Row Crop Tractor391 ci
D21 Series I is in the 72nd percentile; 900 is in the 29th · 1,409 models
Cylinders
▲ D21 Series I higher · +2 (+50%)D21 Series I6
9004
Median Row Crop Tractor6
D21 Series I is in the 50th percentile; 900 is in the 17th · 1,417 models
Forward Gears
▲ 900 higher · +10 (+125%)D21 Series I8
90018
Median Row Crop Tractor16
D21 Series I is in the 16th percentile; 900 is in the 61st · 1,200 models
D21 Series I (A)900 (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Belarus | — |
| Model | D21 Series I | 900 | — |
| Category | Row Crop | Agricultural | — |
Engine
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Belarus | — |
| Model | 3400 | Not recorded | — |
| Power Output | 103hp | 100hp | ▲ D21 Series I+3 hp · +3% |
| Rated RPM | 2,200RPM | Not recorded | — |
| Cylinders | 6 | 4 | ▲ D21 Series I+2 · +50% |
| Displacement | 426ci | 290ci | ▲ D21 Series I+136 ci · +47% |
| Bore | 4.3in | 4.3in | Same |
| Stroke | 5in | 4.9in | ▲ D21 Series I+0.1 in · +2% |
Transmission
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| Type | Sliding gear with dry disc clutch | Manual | — |
Dimensions & Weight
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| Length | 161in | Not recorded | — |
| Width | 91.6in | Not recorded | — |
| Height | 107in | Not recorded | — |
| Operating Weight | 9,500lb | 8,000lb | ▲ D21 Series I+1,500 lb · +19% |
Hydraulics
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| System Type | Not recorded | Open | — |
| Steering Type | Power | Not recorded | — |
Power Take-off (PTO)
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 1,000rpm | Not recorded | — |
Hitch & Towing
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III/II | II | — |
| Hitch Position | Rear | Rear | Same |
Chassis & Drive
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | Not recorded | — |
| Drive Type | 2WD | Not recorded | — |
| Steering Type | Power | Not recorded | — |
| Brake Type | Band actuated disc | Not recorded | — |
Electrical
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| Starter Type | Electric | Not recorded | — |
Capacities
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| Coolant | 5.3gal | 5.3gal | Same |
Operator Station
| Spec | Allis Chalmers D21 Series I | Belarus 900 | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context
Both models against the field
Engine Power
median 138 hpA · 27th percentile (103 hp)B · 25th percentile (100 hp)
Engine Displacement
median 391 ciA · 72nd percentile (426 ci)B · 29th percentile (290 ci)
Cylinders
median 6A · 50th percentile (6)B · 17th percentile (4)
Forward Gears
median 16A · 16th percentile (8)B · 61st percentile (18)
Operating Weight
median 12,307 lbA · 28th percentile (9,500 lb)B · 20th percentile (8,000 lb)
A · D21 Series IB · 900Median Row Crop Tractor