Allis ChalmersModel A
Allis Chalmers 8550
Utility
- power
- 300 hp
- displacement
- 731 ci
- Cylinders
- 6
- Forward gears
- 20
Head to head · Utility
Allis Chalmers 8550 vs New Holland 9684
New HollandModel B
New Holland 9684
Utility
- power
- 301 hp
- displacement
- 855 ci
- Cylinders
- 6
- Forward gears
- 12
Allis ChalmersAllis Chalmers 8550
vs
New HollandNew Holland 9684
How they compare
Headline specs vs. the whole Utility
Engine Power
▲ 9684 higher · +1 hp (<1%)8550300 hp
9684301 hp
Median Utility Tractor55 hp
8550 is in the 97th percentile; 9684 is in the 97th · 5,383 models
Engine Displacement
▲ 9684 higher · +124 ci (+17%)8550731 ci
9684855 ci
Median Utility Tractor183 ci
8550 is in the 96th percentile; 9684 is in the 98th · 5,580 models
Cylinders
= Effectively tied85506
96846
Median Utility Tractor4
8550 is in the 93rd percentile; 9684 is in the 93rd · 5,720 models
Forward Gears
▲ 8550 higher · +8 (+67%)855020
968412
Median Utility Tractor12
8550 is in the 86th percentile; 9684 is in the 50th · 4,941 models
8550 (A)9684 (B)Median Utility Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers 8550 | New Holland 9684 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | New Holland | — |
| Model | 8550 | 9684 | — |
| Category | Utility | Utility | Same |
Engine
| Spec | Allis Chalmers 8550 | New Holland 9684 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Cummins | — |
| Model | 6120T | Not recorded | — |
| Power Output | 300hp | 301hp | ▲ 9684+1 hp · <1% |
| Rated RPM | 2,500RPM | 2,100RPM | ▲ 8550+400 RPM · +19% |
| Cylinders | 6 | 6 | Same |
| Displacement | 731ci | 855ci | ▲ 9684+124 ci · +17% |
| Bore | 5.3in | 5.5in | ▲ 9684+0.2 in · +4% |
| Stroke | 6.3in | 6in | ▲ 8550+0.3 in · +5% |
Transmission
| Spec | Allis Chalmers 8550 | New Holland 9684 | Difference |
|---|---|---|---|
| Type | Partial Power Shift | partially synchronized | — |
Dimensions & Weight
| Spec | Allis Chalmers 8550 | New Holland 9684 | Difference |
|---|---|---|---|
| Length | 285in | Not recorded | — |
| Width | 95.5in | Not recorded | — |
| Height | 139in | Not recorded | — |
| Operating Weight | 27,040lb | 30,795lb | ▲ 9684+3,755 lb · +14% |
Hydraulics
| Spec | Allis Chalmers 8550 | New Holland 9684 | Difference |
|---|---|---|---|
| System Type | Closed Center | Not recorded | — |
| Steering Type | Hydrostatic Power | articulated power | — |
Power Take-off (PTO)
| Spec | Allis Chalmers 8550 | New Holland 9684 | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 1,000rpm | Not recorded | — |
Hitch & Towing
| Spec | Allis Chalmers 8550 | New Holland 9684 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | IV/III | III/IVN | — |
Chassis & Drive
| Spec | Allis Chalmers 8550 | New Holland 9684 | 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 | — |
Electrical
| Spec | Allis Chalmers 8550 | New Holland 9684 | Difference |
|---|---|---|---|
| Starter Type | Electric | 12 volt | — |
Capacities
| Spec | Allis Chalmers 8550 | New Holland 9684 | Difference |
|---|---|---|---|
| Coolant | 18gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers 8550 | New Holland 9684 | Difference |
|---|---|---|---|
| Type | Acousta Cab II with heat and air-conditioning | Not recorded | — |
Category context
Both models against the field
Engine Power
median 55 hpA · 97th percentile (300 hp)B · 97th percentile (301 hp)
Engine Displacement
median 183 ciA · 96th percentile (731 ci)B · 98th percentile (855 ci)
Cylinders
median 4A · 93rd percentile (6)B · 93rd percentile (6)
Forward Gears
median 12A · 86th percentile (20)B · 50th percentile (12)
Operating Weight
median 5,303 lbA · 96th percentile (27,040 lb)B · 97th percentile (30,795 lb)
A · 8550B · 9684Median Utility Tractor