
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; 8430 is in the 96th · 5,383 models
8550 is in the 96th percentile; 8430 is in the 94th · 5,580 models
8550 is in the 93rd percentile; 8430 is in the 93rd · 5,720 models
8550 is in the 86th percentile; 8430 is in the 73rd · 4,941 models
Full comparison
| Spec | Allis Chalmers 8550 | John Deere 8430 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | 8550 | 8430 | — |
| Category | Utility | Row Crop | — |
| Spec | Allis Chalmers 8550 | John Deere 8430 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | 6120T | PowerTech RG6090L001350 | — |
| Power Output | 300hp | 289hp | ▲ 8550+11 hp · +4% |
| Rated RPM | 2,500RPM | 1,800RPM | ▲ 8550+700 RPM · +39% |
| 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 8430 | Difference |
|---|---|---|---|
| Type | Partial Power Shift | Full power shift | — |
| Spec | Allis Chalmers 8550 | John Deere 8430 | Difference |
|---|---|---|---|
| Length | 285in | 219in | ▲ 8550+66 in · +30% |
| Width | 95.5in | 95.8in | ▲ 8430+0.3 in · <1% |
| Height | 139in | 123in | ▲ 8550+16 in · +13% |
| Operating Weight | 27,040lb | 33,680lb | ▲ 8430+6,640 lb · +25% |
| Spec | Allis Chalmers 8550 | John Deere 8430 | Difference |
|---|---|---|---|
| System Type | Closed Center | Closed center PFC | — |
| Steering Type | Hydrostatic Power | Power | — |
| Spec | Allis Chalmers 8550 | John Deere 8430 | Difference |
|---|---|---|---|
| Type | Independent | Independent | Same |
| Speed 1 | 1,000rpm | 1,000rpm | Same |
| Spec | Allis Chalmers 8550 | John Deere 8430 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Three-Point Hitch | Same |
| Hitch Category | IV/III | Category 3 | — |
| Hitch Position | Not recorded | Rear | — |
| Hitch Capacity | Not recorded | 17,719lb | — |
| Spec | Allis Chalmers 8550 | John Deere 8430 | Difference |
|---|---|---|---|
| Chassis Type | 4x4 Articulated 4WD | 4x4 MFWD 4WD RW8430P001459 | — |
| Drive Type | 4WD | 4WD | Same |
| Steering Type | Hydrostatic Power | Power | — |
| Brake Type | Hydraulic Wet Discs | Wet disc | — |
| Spec | Allis Chalmers 8550 | John Deere 8430 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers 8550 | John Deere 8430 | Difference |
|---|---|---|---|
| Coolant | 18gal | 10.6gal | ▲ 8550+7.4 gal · +70% |
| Spec | Allis Chalmers 8550 | John Deere 8430 | Difference |
|---|---|---|---|
| Type | Acousta Cab II with heat and air-conditioning | CommandView Cab (standard) | — |
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