
Allis ChalmersModel A
Allis Chalmers 8550
Utility
- power
- 300 hp
- displacement
- 731 ci
- Cylinders
- 6
- Forward gears
- 20
Head to head · Utility

Utility

Row Crop
How they compare
8550 is in the 97th percentile; 8285R is in the 96th · 5,383 models
8550 is in the 96th percentile; 8285R is in the 94th · 5,580 models
8550 is in the 93rd percentile; 8285R is in the 93rd · 5,720 models
8550 is in the 86th percentile; 8285R is in the 73rd · 4,941 models
Full comparison
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | 8550 | 8285R | — |
| Category | Utility | Row Crop | — |
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | 6120T | PowerTech PSX | — |
| Power Output | 300hp | 285hp | ▲ 8550+15 hp · +5% |
| Rated RPM | 2,500RPM | 2,100RPM | ▲ 8550+400 RPM · +19% |
| Cylinders | 6 | 6 | Same |
| Displacement | 731ci | 548ci | ▲ 8550+183 ci · +33% |
| Bore | 5.3in | 4.7in | ▲ 8550+0.6 in · +13% |
| Stroke | 6.3in | 5.4in | ▲ 8550+0.9 in · +17% |
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| Type | Partial Power Shift | Full power shift | — |
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| Length | 285in | 244in | ▲ 8550+41 in · +17% |
| Width | 95.5in | 96in | ▲ 8285R+0.5 in · <1% |
| Height | 139in | 139in | Same |
| Wheelbase | Not recorded | 119in | — |
| Operating Weight | 27,040lb | 25,330lb | ▲ 8550+1,710 lb · +7% |
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| System Type | Closed Center | Closed center pressure-flow compensated | — |
| Pump Flow Capacity | Not recorded | 64.1gpm | — |
| Pressure | Not recorded | 2,404psi | — |
| Steering Type | Hydrostatic Power | Hydrostatic power | Same |
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 1,000rpm | Not recorded | — |
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | 3/3N | — |
| Hitch Category | IV/III | Category 3 | — |
| Hitch Position | Not recorded | Rear | — |
| Hitch Capacity | Not recorded | 24,750lb | — |
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| Chassis Type | 4x4 Articulated 4WD | 4x4 MFWD 4WD | — |
| Drive Type | 4WD | MFWD 4WD | — |
| Steering Type | Hydrostatic Power | Hydrostatic power | Same |
| Brake Type | Hydraulic Wet Discs | Not recorded | — |
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| Coolant | 18gal | 10.8gal | ▲ 8550+7.2 gal · +67% |
| Spec | Allis Chalmers 8550 | John Deere 8285R | Difference |
|---|---|---|---|
| Type | Acousta Cab II with heat and air-conditioning | Cab | — |
Category context