
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
Row Crop
How they compare
D21 Series II is in the 40th percentile; Champion 120 is in the 39th · 1,206 models
D21 Series II is in the 72nd percentile; Champion 120 is in the 45th · 1,409 models
D21 Series II is in the 50th percentile; Champion 120 is in the 50th · 1,417 models
D21 Series II is in the 16th percentile; Champion 120 is in the 61st · 1,200 models
Full comparison
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Lamborghini | — |
| Model | D21 Series II | Champion 120 | — |
| Category | Row Crop | Row Crop | Same |
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | SDF | — |
| Model | 3500 | 1000.6 WT 3V | — |
| Power Output | 121hp | 120hp | ▲ D21 Series II+1 hp · <1% |
| Rated RPM | 2,200RPM | 2,350RPM | ▲ Champion 120+150 RPM · +7% |
| Cylinders | 6 | 6 | Same |
| Displacement | 426ci | 366ci | ▲ D21 Series II+60 ci · +16% |
| Bore | 4.3in | 4.1in | ▲ D21 Series II+0.2 in · +5% |
| Stroke | 5in | 4.5in | ▲ D21 Series II+0.5 in · +11% |
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| Type | Sliding gear with dry disc clutch | 9-speed power shift with creeper option | — |
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| Length | 160in | 184in | ▲ Champion 120+24 in · +15% |
| Width | 91.3in | 96.5in | ▲ Champion 120+5.2 in · +6% |
| Height | 106in | 113in | ▲ Champion 120+7 in · +7% |
| Operating Weight | 9,502lb | 13,448lb | ▲ Champion 120+3,946 lb · +42% |
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| System Type | Not recorded | Open Center | — |
| Steering Type | Power | Power | Same |
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 1,000rpm | Not recorded | — |
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| Front Tire Size | Not recorded | 420/70R28 | — |
| Rear Tire Size | Not recorded | 520/70R34 | — |
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III/II | Not recorded | — |
| Hitch Position | Rear | Not recorded | — |
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 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 | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| Coolant | 7.8gal | Not recorded | — |
| Spec | Allis Chalmers D21 Series II | Lamborghini Champion 120 | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context