Allis ChalmersModel A
Allis Chalmers HD20
Industrial
- power
- Not recorded
- displacement
- 660 ci
- Cylinders
- 6
- Forward gears
- 2
Head to head · Industrial
Allis Chalmers HD20 vs International Harvester 4186
Image not recorded
International HarvesterModel B
International Harvester 4186
Utility
- power
- Not recorded
- displacement
- 436 ci
- Cylinders
- 6
- Forward gears
- 8
Allis ChalmersAllis Chalmers HD20
vs
International HarvesterInternational Harvester 4186
How they compare
Headline specs vs. the whole Industrial
Engine Displacement
▲ HD20 higher · +224 ci (+51%)HD20660 ci
4186436 ci
Median Industrial Tractor284 ci
HD20 is in the 76th percentile; 4186 is in the 65th · 53 models
Cylinders
= Effectively tiedHD206
41866
Median Industrial Tractor4
HD20 is in the 88th percentile; 4186 is in the 88th · 55 models
Forward Gears
▲ 4186 higher · +6 (+300%)HD202
41868
Median Industrial Tractor5
HD20 is in the 1st percentile; 4186 is in the 85th · 43 models
Operating Weight
▲ HD20 higher · +18,600 lb (+83%)HD2041,000 lb
418622,400 lb
Median Industrial Tractor9,127 lb
HD20 is in the 97th percentile; 4186 is in the 78th · 49 models
HD20 (A)4186 (B)Median Industrial Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD20 | International Harvester 4186 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | International Harvester | — |
| Model | HD20 | 4186 | — |
| Category | Industrial | Utility | — |
Engine
| Spec | Allis Chalmers HD20 | International Harvester 4186 | Difference |
|---|---|---|---|
| Manufacturer | General Motors | International Harvester | — |
| Model | Not recorded | DT-436 | — |
| Rated RPM | 1,700RPM | 2,400RPM | ▲ 4186+700 RPM · +41% |
| Cylinders | 6 | 6 | Same |
| Displacement | 660ci | 436ci | ▲ HD20+224 ci · +51% |
| Bore | 5in | 4.3in | ▲ HD20+0.7 in · +16% |
| Stroke | 5.6in | 5in | ▲ HD20+0.6 in · +12% |
Transmission
| Spec | Allis Chalmers HD20 | International Harvester 4186 | Difference |
|---|---|---|---|
| Type | Torque converter | Gear | — |
Dimensions & Weight
| Spec | Allis Chalmers HD20 | International Harvester 4186 | Difference |
|---|---|---|---|
| Length | 191in | 194in | ▲ 4186+3 in · +2% |
| Height | 95in | 139in | ▲ 4186+44 in · +46% |
| Operating Weight | 41,000lb | 22,400lb | ▲ HD20+18,600 lb · +83% |
Hydraulics
| Spec | Allis Chalmers HD20 | International Harvester 4186 | Difference |
|---|---|---|---|
| System Type | Not recorded | Open center | — |
| Steering Type | Not recorded | Hydraulic power | — |
Hitch & Towing
| Spec | Allis Chalmers HD20 | International Harvester 4186 | Difference |
|---|---|---|---|
| Hitch Type | Not recorded | Category III/II | — |
| Hitch Category | Not recorded | 3 | — |
Chassis & Drive
| Spec | Allis Chalmers HD20 | International Harvester 4186 | Difference |
|---|---|---|---|
| Chassis Type | Not recorded | 4x4 4WD | — |
| Drive Type | Not recorded | 4WD | — |
| Steering Type | Not recorded | Hydraulic power | — |
Electrical
| Spec | Allis Chalmers HD20 | International Harvester 4186 | Difference |
|---|---|---|---|
| Battery Voltage | Not recorded | 12V | — |
| Starter Type | 24 volts | Electric | — |
Capacities
| Spec | Allis Chalmers HD20 | International Harvester 4186 | Difference |
|---|---|---|---|
| Coolant | 15gal | Not recorded | — |
Category context
Both models against the field
Engine Displacement
median 284 ciA · 76th percentile (660 ci)B · 65th percentile (436 ci)
Cylinders
median 4A · 88th percentile (6)B · 88th percentile (6)
Forward Gears
median 5A · 1st percentile (2)B · 85th percentile (8)
Operating Weight
median 9,127 lbA · 97th percentile (41,000 lb)B · 78th percentile (22,400 lb)
Length
median 125 inA · 86th percentile (191 in)B · 87th percentile (194 in)
A · HD20B · 4186Median Industrial Tractor