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

Utility

Utility
How they compare
8550 is in the 97th percentile; Panther III PTA-297 is in the 96th · 5,383 models
8550 is in the 96th percentile; Panther III PTA-297 is in the 98th · 5,580 models
8550 is in the 93rd percentile; Panther III PTA-297 is in the 99th · 5,720 models
8550 is in the 86th percentile; Panther III PTA-297 is in the 23rd · 4,941 models
Full comparison
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Steiger | — |
| Model | 8550 | Panther III PTA-297 | — |
| Category | Utility | Utility | Same |
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Cummins | — |
| Model | 6120T | VT-903 | — |
| Power Output | 300hp | 295hp | ▲ 8550+5 hp · +2% |
| Rated RPM | 2,500RPM | 2,600RPM | ▲ Panther III PTA-297+100 RPM · +4% |
| Cylinders | 6 | 8 | ▲ Panther III PTA-297+2 · +33% |
| Displacement | 731ci | 903ci | ▲ Panther III PTA-297+172 ci · +24% |
| Bore | 5.3in | 5.5in | ▲ Panther III PTA-297+0.2 in · +4% |
| Stroke | 6.3in | 4.8in | ▲ 8550+1.5 in · +31% |
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| Type | Partial Power Shift | power shift | — |
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| Length | 285in | 265in | ▲ 8550+20 in · +8% |
| Width | 95.5in | 99in | ▲ Panther III PTA-297+3.5 in · +4% |
| Height | 139in | Not recorded | — |
| Operating Weight | 27,040lb | 28,975lb | ▲ Panther III PTA-297+1,935 lb · +7% |
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| System Type | Closed Center | open center load sensing | — |
| Steering Type | Hydrostatic Power | articulated power | — |
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 1,000rpm | Not recorded | — |
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Three-Point Hitch | Same |
| Hitch Category | IV/III | 3 | — |
| Hitch Position | Not recorded | Rear | — |
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| Chassis Type | 4x4 Articulated 4WD | 4x4 articulated 4WD | Same |
| Drive Type | 4WD | 4WD | Same |
| Steering Type | Hydrostatic Power | articulated power | — |
| Brake Type | Hydraulic Wet Discs | Not recorded | — |
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| Coolant | 18gal | 17gal | ▲ 8550+1 gal · +6% |
| Spec | Allis Chalmers 8550 | Steiger Panther III PTA-297 | Difference |
|---|---|---|---|
| Type | Acousta Cab II with heat and air-conditioning | Not recorded | — |
Category context