Allis ChalmersModel A
Allis Chalmers 7020
Row Crop
- power
- 124 hp
- displacement
- 301 ci
- Cylinders
- 6
- Forward gears
- 6
Head to head · Row Crop
Allis Chalmers 7020 vs International Harvester A-866
International HarvesterModel B
International Harvester A-866
Row Crop
- power
- 121 hp
- displacement
- 358 ci
- Cylinders
- 6
- Forward gears
- 16
Allis ChalmersAllis Chalmers 7020
vs
International HarvesterInternational Harvester A-866
How they compare
Headline specs vs. the whole Row Crop
Engine Power
▲ 7020 higher · +3 hp (+2%)7020124 hp
A-866121 hp
Median Row Crop Tractor138 hp
7020 is in the 41st percentile; A-866 is in the 40th · 1,206 models
Engine Displacement
▲ A-866 higher · +57 ci (+19%)7020301 ci
A-866358 ci
Median Row Crop Tractor391 ci
7020 is in the 32nd percentile; A-866 is in the 40th · 1,409 models
Cylinders
= Effectively tied70206
A-8666
Median Row Crop Tractor6
7020 is in the 50th percentile; A-866 is in the 50th · 1,417 models
Forward Gears
▲ A-866 higher · +10 (+167%)70206
A-86616
Median Row Crop Tractor16
7020 is in the 11th percentile; A-866 is in the 50th · 1,200 models
7020 (A)A-866 (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | International Harvester | — |
| Model | 7020 | A-866 | — |
| Category | Row Crop | Row Crop | Same |
Engine
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | International Harvester | — |
| Model | 649I | D-358 | — |
| Power Output | 124hp | 121hp | ▲ 7020+3 hp · +2% |
| Rated RPM | 2,300RPM | Not recorded | — |
| Cylinders | 6 | 6 | Same |
| Displacement | 301ci | 358ci | ▲ A-866+57 ci · +19% |
| Bore | 3.9in | 3.9in | Same |
| Stroke | 4.3in | 5.1in | ▲ A-866+0.8 in · +19% |
Transmission
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Type | Partial power shift | Two-speed power shift | — |
Dimensions & Weight
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Length | 163in | Not recorded | — |
| Width | 92.6in | Not recorded | — |
| Height | 116in | Not recorded | — |
| Operating Weight | 11,770lb | Not recorded | — |
Hydraulics
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| System Type | Closed center | Not recorded | — |
| Steering Type | Hydrostatic power | Not recorded | — |
Power Take-off (PTO)
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 540rpm | Not recorded | — |
| Speed 2 | 1,000rpm | Not recorded | — |
Tires
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Front Tire Size | 11.00-16 | Not recorded | — |
| Rear Tire Size | 20.8-38 | Not recorded | — |
Hitch & Towing
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III/II | III | — |
| Hitch Position | Rear | Not recorded | — |
| Hitch Capacity | 6,680lb | Not recorded | — |
Chassis & Drive
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Hydrostatic power | Not recorded | — |
| Brake Type | Differential hydraulic wet disc | Not recorded | — |
Electrical
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Starter Type | Electric | Not recorded | — |
Capacities
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Coolant | 6.5gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers 7020 | International Harvester A-866 | Difference |
|---|---|---|---|
| Type | Acousta-Cab | Not recorded | — |
Category context
Both models against the field
Engine Power
median 138 hpA · 41st percentile (124 hp)B · 40th percentile (121 hp)
Engine Displacement
median 391 ciA · 32nd percentile (301 ci)B · 40th percentile (358 ci)
Cylinders
median 6A · 50th percentile (6)B · 50th percentile (6)
Forward Gears
median 16A · 11th percentile (6)B · 50th percentile (16)
A · 7020B · A-866Median Row Crop Tractor