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Allis ChalmersModel A
Allis Chalmers HD16A
Industrial
- power
- 163 hp
- displacement
- 844 ci
- Cylinders
- 6
- Forward gears
- 6
Head to head · Industrial
Allis Chalmers HD16A vs Caterpillar D8
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CaterpillarModel B
Caterpillar D8
Tractor
- power
- 115 hp
- displacement
- 1,246 ci
- Cylinders
- 6
- Forward gears
- 6
Allis ChalmersAllis Chalmers HD16A
vs
CaterpillarCaterpillar D8
How they compare
Headline specs vs. the whole Industrial
Engine Displacement
▲ D8 higher · +402 ci (+48%)HD16A844 ci
D81,246 ci
Median Industrial Tractor284 ci
HD16A is in the 86th percentile; D8 is in the 99th · 53 models
Cylinders
= Effectively tiedHD16A6
D86
Median Industrial Tractor4
HD16A is in the 88th percentile; D8 is in the 88th · 55 models
Forward Gears
= Effectively tiedHD16A6
D86
Median Industrial Tractor5
HD16A is in the 65th percentile; D8 is in the 65th · 43 models
Operating Weight
▲ D8 higher · +5,020 lb (+16%)HD16A31,500 lb
D836,520 lb
Median Industrial Tractor9,127 lb
HD16A is in the 91st percentile; D8 is in the 96th · 49 models
HD16A (A)D8 (B)Median Industrial Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD16A | Caterpillar D8 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Caterpillar | — |
| Model | HD16A | D8 | — |
| Category | Industrial | Not recorded | — |
Engine
| Spec | Allis Chalmers HD16A | Caterpillar D8 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Caterpillar | — |
| Model | 160000 | D13000 | — |
| Power Output | 163hp | 115hp | ▲ HD16A+48 hp · +42% |
| Rated RPM | 1,600RPM | 850RPM | ▲ HD16A+750 RPM · +88% |
| Cylinders | 6 | 6 | Same |
| Displacement | 844ci | 1,246ci | ▲ D8+402 ci · +48% |
| Bore | 5.3in | 5.8in | ▲ D8+0.5 in · +9% |
| Stroke | 6.5in | 8in | ▲ D8+1.5 in · +23% |
Transmission
| Spec | Allis Chalmers HD16A | Caterpillar D8 | Difference |
|---|---|---|---|
| Type | Gear | gear | Same |
Dimensions & Weight
| Spec | Allis Chalmers HD16A | Caterpillar D8 | Difference |
|---|---|---|---|
| Length | 181in | 186in | ▲ D8+5 in · +3% |
| Width | 96in | 101in | ▲ D8+5 in · +5% |
| Height | 90.5in | 84in | ▲ HD16A+6.5 in · +8% |
| Operating Weight | 31,500lb | 36,520lb | ▲ D8+5,020 lb · +16% |
Hydraulics
| Spec | Allis Chalmers HD16A | Caterpillar D8 | Difference |
|---|---|---|---|
| Steering Type | Hydraulic | Not recorded | — |
Chassis & Drive
| Spec | Allis Chalmers HD16A | Caterpillar D8 | Difference |
|---|---|---|---|
| Steering Type | Hydraulic | Not recorded | — |
Electrical
| Spec | Allis Chalmers HD16A | Caterpillar D8 | Difference |
|---|---|---|---|
| Starter Type | Electric | Not recorded | — |
Category context
Both models against the field
Engine Displacement
median 284 ciA · 86th percentile (844 ci)B · 99th percentile (1,246 ci)
Cylinders
median 4A · 88th percentile (6)B · 88th percentile (6)
Forward Gears
median 5A · 65th percentile (6)B · 65th percentile (6)
Operating Weight
median 9,127 lbA · 91st percentile (31,500 lb)B · 96th percentile (36,520 lb)
Length
median 125 inA · 76th percentile (181 in)B · 82nd percentile (186 in)
A · HD16AB · D8Median Industrial Tractor