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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
Row Crop

Agricultural
How they compare
D21 Series I is in the 27th percentile; Favorit 11S is in the 28th · 1,206 models
D21 Series I is in the 72nd percentile; Favorit 11S is in the 34th · 1,409 models
D21 Series I is in the 50th percentile; Favorit 11S is in the 50th · 1,417 models
D21 Series I is in the 16th percentile; Favorit 11S is in the 70th · 1,200 models
Full comparison
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Fendt | — |
| Model | D21 Series I | Favorit 11S | — |
| Category | Row Crop | Agricultural | — |
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | MWM | — |
| Model | 3400 | D225 | — |
| Power Output | 103hp | 105hp | ▲ Favorit 11S+2 hp · +2% |
| Rated RPM | 2,200RPM | 2,400RPM | ▲ Favorit 11S+200 RPM · +9% |
| Cylinders | 6 | 6 | Same |
| Displacement | 426ci | 311ci | ▲ D21 Series I+115 ci · +37% |
| Bore | 4.3in | 3.7in | ▲ D21 Series I+0.6 in · +16% |
| Stroke | 5in | 4.7in | ▲ D21 Series I+0.3 in · +6% |
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Type | Sliding gear with dry disc clutch | Creeper | — |
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Length | 161in | 173in | ▲ Favorit 11S+12 in · +7% |
| Width | 91.6in | Not recorded | — |
| Height | 107in | 101in | ▲ D21 Series I+6 in · +6% |
| Operating Weight | 9,500lb | 9,018lb | ▲ D21 Series I+482 lb · +5% |
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Steering Type | Power | Power | Same |
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 1,000rpm | Not recorded | — |
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III/II | Category 3 | — |
| Hitch Position | Rear | Not recorded | — |
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 2WD | — |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Power | Power | Same |
| Brake Type | Band actuated disc | Not recorded | — |
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Starter Type | Electric | Not recorded | — |
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Coolant | 5.3gal | Not recorded | — |
| Spec | Allis Chalmers D21 Series I | Fendt Favorit 11S | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context