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Allis ChalmersModel A
Allis Chalmers HD11AG Series B
Industrial
- power
- 127 hp
- displacement
- 516 ci
- Cylinders
- 6
- Forward gears
- 6
Head to head · Industrial
Allis Chalmers HD11AG Series B vs Caterpillar D7C
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CaterpillarModel B
Caterpillar D7C
Crawler
- power
- 128 hp
- displacement
- 831 ci
- Cylinders
- 4
- Forward gears
- 5
Allis ChalmersAllis Chalmers HD11AG Series B
vs
CaterpillarCaterpillar D7C
How they compare
Headline specs vs. the whole Industrial
Engine Displacement
▲ D7C higher · +315 ci (+61%)HD11AG Series B516 ci
D7C831 ci
Median Industrial Tractor284 ci
HD11AG Series B is in the 70th percentile; D7C is in the 84th · 53 models
Cylinders
▲ HD11AG Series B higher · +2 (+50%)HD11AG Series B6
D7C4
Median Industrial Tractor4
HD11AG Series B is in the 88th percentile; D7C is in the 50th · 55 models
Forward Gears
▲ HD11AG Series B higher · +1 (+20%)HD11AG Series B6
D7C5
Median Industrial Tractor5
HD11AG Series B is in the 65th percentile; D7C is in the 50th · 43 models
Operating Weight
▲ D7C higher · +1,930 lb (+8%)HD11AG Series B25,000 lb
D7C26,930 lb
Median Industrial Tractor9,127 lb
HD11AG Series B is in the 87th percentile; D7C is in the 88th · 49 models
HD11AG Series B (A)D7C (B)Median Industrial Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD11AG Series B | Caterpillar D7C | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Caterpillar | — |
| Model | HD11AG Series B | D7C | — |
| Category | Industrial | Crawler | — |
Engine
| Spec | Allis Chalmers HD11AG Series B | Caterpillar D7C | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Caterpillar | — |
| Model | 11000 | D339 | — |
| Power Output | 127hp | 128hp | ▲ D7C+1 hp · <1% |
| Rated RPM | 1,800RPM | 1,200RPM | ▲ HD11AG Series B+600 RPM · +50% |
| Cylinders | 6 | 4 | ▲ HD11AG Series B+2 · +50% |
| Displacement | 516ci | 831ci | ▲ D7C+315 ci · +61% |
| Bore | 4.4in | 5.8in | ▲ D7C+1.4 in · +32% |
| Stroke | 5.6in | 8in | ▲ D7C+2.4 in · +43% |
Transmission
| Spec | Allis Chalmers HD11AG Series B | Caterpillar D7C | Difference |
|---|---|---|---|
| Type | Gear | Gear | Same |
Dimensions & Weight
| Spec | Allis Chalmers HD11AG Series B | Caterpillar D7C | Difference |
|---|---|---|---|
| Length | 125in | 168in | ▲ D7C+43 in · +34% |
| Width | 96in | 97in | ▲ D7C+1 in · +1% |
| Height | 84in | 81.3in | ▲ HD11AG Series B+2.7 in · +3% |
| Operating Weight | 25,000lb | 26,930lb | ▲ D7C+1,930 lb · +8% |
Hydraulics
| Spec | Allis Chalmers HD11AG Series B | Caterpillar D7C | Difference |
|---|---|---|---|
| Steering Type | Not recorded | Manual Clutches | — |
Chassis & Drive
| Spec | Allis Chalmers HD11AG Series B | Caterpillar D7C | Difference |
|---|---|---|---|
| Chassis Type | Tracked | Not recorded | — |
| Drive Type | Track | Not recorded | — |
| Steering Type | Not recorded | Manual Clutches | — |
Electrical
| Spec | Allis Chalmers HD11AG Series B | Caterpillar D7C | Difference |
|---|---|---|---|
| Starter Type | Electric | Gasoline Pony Engine | — |
Capacities
| Spec | Allis Chalmers HD11AG Series B | Caterpillar D7C | Difference |
|---|---|---|---|
| Coolant | 11gal | 17gal | ▲ D7C+6 gal · +55% |
Category context
Both models against the field
Engine Displacement
median 284 ciA · 70th percentile (516 ci)B · 84th percentile (831 ci)
Cylinders
median 4A · 88th percentile (6)B · 50th percentile (4)
Forward Gears
median 5A · 65th percentile (6)B · 50th percentile (5)
Operating Weight
median 9,127 lbA · 87th percentile (25,000 lb)B · 88th percentile (26,930 lb)
Length
median 125 inA · 50th percentile (125 in)B · 72nd percentile (168 in)
A · HD11AG Series BB · D7CMedian Industrial Tractor