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Allis ChalmersModel A
Allis Chalmers 620
Utility
- power
- 19.5 hp
- displacement
- 49.8 ci
- Cylinders
- 2
- Forward gears
- Not recorded
Head to head · Utility
Allis Chalmers 620 vs Massey Ferguson 821
Massey FergusonModel B
Massey Ferguson 821
Utility
- power
- 20 hp
- displacement
- 78.7 ci
- Cylinders
- 4
- Forward gears
- 5
Allis ChalmersAllis Chalmers 620
vs
Massey FergusonMassey Ferguson 821
How they compare
Headline specs vs. the whole Utility
Engine Power
▲ 821 higher · +0.5 hp (+3%)62019.5 hp
82120 hp
Median Utility Tractor55 hp
620 is in the 8th percentile; 821 is in the 8th · 5,383 models
Engine Displacement
▲ 821 higher · +28.9 ci (+58%)62049.8 ci
82178.7 ci
Median Utility Tractor183 ci
620 is in the 3rd percentile; 821 is in the 12th · 5,580 models
Cylinders
▲ 821 higher · +2 (+100%)6202
8214
Median Utility Tractor4
620 is in the 3rd percentile; 821 is in the 50th · 5,720 models
Length
▲ 821 higher · +27.3 in (+33%)62082.7 in
821110 in
Median Utility Tractor137 in
620 is in the 3rd percentile; 821 is in the 16th · 4,659 models
620 (A)821 (B)Median Utility Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers 620 | Massey Ferguson 821 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Massey Ferguson | — |
| Model | 620 | 821 | — |
| Category | Utility, Sub-Compact | Utility | — |
Engine
| Spec | Allis Chalmers 620 | Massey Ferguson 821 | Difference |
|---|---|---|---|
| Manufacturer | Onan | Peugeot | — |
| Model | CCKB | Not recorded | — |
| Power Output | 19.5hp | 20hp | ▲ 821+0.5 hp · +3% |
| Rated RPM | 3,600RPM | 2,000RPM | ▲ 620+1,600 RPM · +80% |
| Cylinders | 2 | 4 | ▲ 821+2 · +100% |
| Displacement | 49.8ci | 78.7ci | ▲ 821+28.9 ci · +58% |
| Bore | 3.3in | 3in | ▲ 620+0.3 in · +10% |
| Stroke | 3in | 2.9in | ▲ 620+0.1 in · +3% |
Transmission
| Spec | Allis Chalmers 620 | Massey Ferguson 821 | Difference |
|---|---|---|---|
| Type | Hydrostatic | Gear | — |
Dimensions & Weight
| Spec | Allis Chalmers 620 | Massey Ferguson 821 | Difference |
|---|---|---|---|
| Length | 82.7in | 110in | ▲ 821+27.3 in · +33% |
| Width | 47.6in | 55.1in | ▲ 821+7.5 in · +16% |
| Height | 42.9in | 61in | ▲ 821+18.1 in · +42% |
| Operating Weight | 1,499lb | Not recorded | — |
Power Take-off (PTO)
| Spec | Allis Chalmers 620 | Massey Ferguson 821 | Difference |
|---|---|---|---|
| Speed 1 | 2,000rpm | Not recorded | — |
| Speed 2 | 2,000rpm | Not recorded | — |
Chassis & Drive
| Spec | Allis Chalmers 620 | Massey Ferguson 821 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
Electrical
| Spec | Allis Chalmers 620 | Massey Ferguson 821 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers 620 | Massey Ferguson 821 | Difference |
|---|---|---|---|
| Coolant | Not recorded | 2.3gal | — |
Operator Station
| Spec | Allis Chalmers 620 | Massey Ferguson 821 | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context
Both models against the field
Engine Power
median 55 hpA · 8th percentile (19.5 hp)B · 8th percentile (20 hp)
Engine Displacement
median 183 ciA · 3rd percentile (49.8 ci)B · 12th percentile (78.7 ci)
Cylinders
median 4A · 3rd percentile (2)B · 50th percentile (4)
Length
median 137 inA · 3rd percentile (82.7 in)B · 16th percentile (110 in)
Width
median 66 inA · 14th percentile (47.6 in)B · 27th percentile (55.1 in)
A · 620B · 821Median Utility Tractor