Allis ChalmersModel A
Allis Chalmers HD6
Crawler
- power
- Not recorded
- displacement
- 344 ci
- Cylinders
- 4
- Forward gears
- 5
Head to head · Agricultural
Allis Chalmers HD6 vs Oliver Super 99
Image not recorded
OliverModel B
Oliver Super 99
Agricultural
- power
- Not recorded
- displacement
- 302 ci
- Cylinders
- 6
- Forward gears
- 6
Allis ChalmersAllis Chalmers HD6
vs
OliverOliver Super 99
How they compare
Headline specs vs. the whole Agricultural
Engine Displacement
▲ HD6 higher · +42 ci (+14%)HD6344 ci
Super 99302 ci
Median Agricultural Tractor336 ci
HD6 is in the 50th percentile; Super 99 is in the 48th · 1,083 models
Cylinders
▲ Super 99 higher · +2 (+50%)HD64
Super 996
Median Agricultural Tractor5.5
HD6 is in the 31st percentile; Super 99 is in the 74th · 1,130 models
Forward Gears
▲ Super 99 higher · +1 (+20%)HD65
Super 996
Median Agricultural Tractor16
HD6 is in the 7th percentile; Super 99 is in the 11th · 972 models
Operating Weight
▲ HD6 higher · +70 lb (<1%)HD613,400 lb
Super 9913,330 lb
Median Agricultural Tractor10,914 lb
HD6 is in the 62nd percentile; Super 99 is in the 62nd · 971 models
HD6 (A)Super 99 (B)Median Agricultural Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Oliver | — |
| Model | HD6 | Super 99 | — |
| Category | Crawler, Agricultural | Agricultural | — |
Engine
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Manufacturer | Allis-Chalmers | Oliver | — |
| Model | HD-344 | Diesel | — |
| Rated RPM | 1,800RPM | 1,675RPM | ▲ HD6+125 RPM · +7% |
| Cylinders | 4 | 6 | ▲ Super 99+2 · +50% |
| Displacement | 344ci | 302ci | ▲ HD6+42 ci · +14% |
| Bore | 4.4in | 4in | ▲ HD6+0.4 in · +10% |
| Stroke | 5.6in | 4in | ▲ HD6+1.6 in · +40% |
Transmission
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Type | Sliding Gear | Gear | — |
Dimensions & Weight
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Length | 127in | Not recorded | — |
| Width | 78.5in | Not recorded | — |
| Height | 66in | Not recorded | — |
| Operating Weight | 13,400lb | 13,330lb | ▲ HD6+70 lb · <1% |
Power Take-off (PTO)
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Power Rating | Not recorded | 62.4hp | — |
Tires
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Front Tire Size | Not recorded | 7.50-18 | — |
| Rear Tire Size | Not recorded | 18-26 & 14-34 | — |
Hitch & Towing
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Hitch Category | Not recorded | Category 3 | — |
Chassis & Drive
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Chassis Type | Crawler | Not recorded | — |
| Drive Type | Tracks | Not recorded | — |
Electrical
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric Starter | — |
Capacities
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Coolant | 3.8gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers HD6 | Oliver Super 99 | Difference |
|---|---|---|---|
| Type | Open operator station | Not recorded | — |
Category context
Both models against the field
Engine Displacement
median 336 ciA · 50th percentile (344 ci)B · 48th percentile (302 ci)
Cylinders
median 5.5A · 31st percentile (4)B · 74th percentile (6)
Forward Gears
median 16A · 7th percentile (5)B · 11th percentile (6)
Operating Weight
median 10,914 lbA · 62nd percentile (13,400 lb)B · 62nd percentile (13,330 lb)
A · HD6B · Super 99Median Agricultural Tractor