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Allis ChalmersModel A
Allis Chalmers HD11AG
Industrial
- power
- 130 hp
- displacement
- 516 ci
- Cylinders
- 6
- Forward gears
- 6
Head to head · Industrial
Allis Chalmers HD11AG vs Allis Chalmers HD20
Allis ChalmersModel B
Allis Chalmers HD20
Industrial
- power
- Not recorded
- displacement
- 660 ci
- Cylinders
- 6
- Forward gears
- 2
Allis ChalmersAllis Chalmers HD11AG
vs
Allis ChalmersAllis Chalmers HD20
How they compare
Headline specs vs. the whole Industrial
Engine Displacement
▲ HD20 higher · +144 ci (+28%)HD11AG516 ci
HD20660 ci
Median Industrial Tractor284 ci
HD11AG is in the 70th percentile; HD20 is in the 76th · 53 models
Cylinders
= Effectively tiedHD11AG6
HD206
Median Industrial Tractor4
HD11AG is in the 88th percentile; HD20 is in the 88th · 55 models
Forward Gears
▲ HD11AG higher · +4 (+200%)HD11AG6
HD202
Median Industrial Tractor5
HD11AG is in the 65th percentile; HD20 is in the 1st · 43 models
Operating Weight
▲ HD20 higher · +18,000 lb (+78%)HD11AG23,000 lb
HD2041,000 lb
Median Industrial Tractor9,127 lb
HD11AG is in the 81st percentile; HD20 is in the 97th · 49 models
HD11AG (A)HD20 (B)Median Industrial Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD11AG | Allis Chalmers HD20 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Allis Chalmers | Same |
| Model | HD11AG | HD20 | — |
| Category | Industrial | Industrial | Same |
Engine
| Spec | Allis Chalmers HD11AG | Allis Chalmers HD20 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | General Motors | — |
| Model | 11000 | Not recorded | — |
| Power Output | 130hp | Not recorded | — |
| Rated RPM | 1,800RPM | 1,700RPM | ▲ HD11AG+100 RPM · +6% |
| Cylinders | 6 | 6 | Same |
| Displacement | 516ci | 660ci | ▲ HD20+144 ci · +28% |
| Bore | 4.4in | 5in | ▲ HD20+0.6 in · +14% |
| Stroke | 5.6in | 5.6in | Same |
Transmission
| Spec | Allis Chalmers HD11AG | Allis Chalmers HD20 | Difference |
|---|---|---|---|
| Type | Gear | Torque converter | — |
Dimensions & Weight
| Spec | Allis Chalmers HD11AG | Allis Chalmers HD20 | Difference |
|---|---|---|---|
| Length | 149in | 191in | ▲ HD20+42 in · +28% |
| Width | 95.9in | Not recorded | — |
| Height | 77.7in | 95in | ▲ HD20+17.3 in · +22% |
| Operating Weight | 23,000lb | 41,000lb | ▲ HD20+18,000 lb · +78% |
Electrical
| Spec | Allis Chalmers HD11AG | Allis Chalmers HD20 | Difference |
|---|---|---|---|
| Starter Type | Electric | 24 volts | — |
Capacities
| Spec | Allis Chalmers HD11AG | Allis Chalmers HD20 | Difference |
|---|---|---|---|
| Coolant | 11gal | 15gal | ▲ HD20+4 gal · +36% |
Category context
Both models against the field
Engine Displacement
median 284 ciA · 70th percentile (516 ci)B · 76th percentile (660 ci)
Cylinders
median 4A · 88th percentile (6)B · 88th percentile (6)
Forward Gears
median 5A · 65th percentile (6)B · 1st percentile (2)
Operating Weight
median 9,127 lbA · 81st percentile (23,000 lb)B · 97th percentile (41,000 lb)
Length
median 125 inA · 60th percentile (149 in)B · 86th percentile (191 in)
A · HD11AGB · HD20Median Industrial Tractor