
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; 5010 is in the 41st · 1,206 models
D21 Series II is in the 72nd percentile; 5010 is in the 93rd · 1,409 models
D21 Series II is in the 50th percentile; 5010 is in the 50th · 1,417 models
D21 Series II is in the 16th percentile; 5010 is in the 16th · 1,200 models
Full comparison
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | D21 Series II | 5010 | — |
| Category | Row Crop | Utility, Standard Tread | — |
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | 3500 | Not recorded | — |
| Power Output | 121hp | 121hp | Same |
| Rated RPM | 2,200RPM | 2,200RPM | Same |
| Cylinders | 6 | 6 | Same |
| Displacement | 426ci | 531ci | ▲ 5010+105 ci · +25% |
| Bore | 4.3in | 4.8in | ▲ 5010+0.5 in · +12% |
| Stroke | 5in | 5in | Same |
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| Type | Sliding gear with dry disc clutch | Syncro-Range | — |
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| Length | 160in | 172in | ▲ 5010+12 in · +8% |
| Width | 91.3in | 95.8in | ▲ 5010+4.5 in · +5% |
| Height | 106in | 96.3in | ▲ D21 Series II+9.7 in · +10% |
| Operating Weight | 9,502lb | 12,925lb | ▲ 5010+3,423 lb · +36% |
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| System Type | Not recorded | Closed center | — |
| Steering Type | Power | Power | Same |
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| Type | Independent | Independent | Same |
| Speed 1 | 1,000rpm | 1,000rpm | Same |
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III/II | III/II | Same |
| Hitch Position | Rear | Not recorded | — |
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Power | Power | Same |
| Brake Type | Band actuated disc | Hydraulic wet disc | — |
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| Coolant | 7.8gal | 8.5gal | ▲ 5010+0.7 gal · +9% |
| Spec | Allis Chalmers D21 Series II | John Deere 5010 | Difference |
|---|---|---|---|
| Type | Open | Open operator station | — |
Category context