
Allis ChalmersModel A
Allis Chalmers D21 Series II
Row Crop
- power
- 121 hp
- displacement
- 426 ci
- Cylinders
- 6
- Forward gears
- 8
Head to head · Row Crop

Row Crop

Utility
How they compare
D21 Series II is in the 40th percentile; Agrotron 120 is in the 39th · 1,206 models
D21 Series II is in the 72nd percentile; Agrotron 120 is in the 75th · 1,409 models
D21 Series II is in the 50th percentile; Agrotron 120 is in the 50th · 1,417 models
D21 Series II is in the 16th percentile; Agrotron 120 is in the 81st · 1,200 models
Full comparison
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Deutz-Fahr | — |
| Model | D21 Series II | Agrotron 120 | — |
| Category | Row Crop | Utility, Row Crop | — |
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Deutz-Fahr | — |
| Model | 3500 | BF6L1013E | — |
| Power Output | 121hp | 120hp | ▲ D21 Series II+1 hp · <1% |
| Rated RPM | 2,200RPM | 2,300RPM | ▲ Agrotron 120+100 RPM · +5% |
| Cylinders | 6 | 6 | Same |
| Displacement | 426ci | 436ci | ▲ Agrotron 120+10 ci · +2% |
| Bore | 4.3in | 4.3in | Same |
| Stroke | 5in | 5.1in | ▲ Agrotron 120+0.1 in · +2% |
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| Type | Sliding gear with dry disc clutch | Four-speed power shift | — |
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| Length | 160in | 181in | ▲ Agrotron 120+21 in · +13% |
| Width | 91.3in | Not recorded | — |
| Height | 106in | 116in | ▲ Agrotron 120+10 in · +9% |
| Operating Weight | 9,502lb | 12,037lb | ▲ Agrotron 120+2,535 lb · +27% |
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| System Type | Not recorded | Open center | — |
| Steering Type | Power | Power | Same |
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 1,000rpm | Not recorded | — |
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III/II | III/II | Same |
| Hitch Position | Rear | Rear | Same |
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x4 MFWD 4WD | — |
| Drive Type | 2WD | 4WD | — |
| Steering Type | Power | Power | Same |
| Brake Type | Band actuated disc | Not recorded | — |
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| Coolant | 7.8gal | Not recorded | — |
| Spec | Allis Chalmers D21 Series II | Deutz-Fahr Agrotron 120 | Difference |
|---|---|---|---|
| Type | Open | Cab | — |
Category context