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Allis ChalmersModel A
Allis Chalmers WS
Crawler
- power
- Not recorded
- displacement
- 675 ci
- Cylinders
- 4
- Forward gears
- 5
Head to head · Crawler
Allis Chalmers WS vs Caterpillar D5B SA Special Application
CaterpillarModel B
Caterpillar D5B SA Special Application
Crawler
- power
- Not recorded
- displacement
- 638 ci
- Cylinders
- 6
- Forward gears
- 6
Allis ChalmersAllis Chalmers WS
vs
CaterpillarCaterpillar D5B SA Special Application
How they compare
Headline specs vs. the whole Crawler
Engine Displacement
▲ WS higher · +37 ci (+6%)WS675 ci
D5B SA Special Application638 ci
Median Crawler Tractor468 ci
WS is in the 72nd percentile; D5B SA Special Application is in the 70th · 191 models
Cylinders
▲ D5B SA Special Application higher · +2 (+50%)WS4
D5B SA Special Application6
Median Crawler Tractor6
WS is in the 33rd percentile; D5B SA Special Application is in the 50th · 192 models
Forward Gears
▲ D5B SA Special Application higher · +1 (+20%)WS5
D5B SA Special Application6
Median Crawler Tractor10
WS is in the 25th percentile; D5B SA Special Application is in the 34th · 179 models
Operating Weight
▲ D5B SA Special Application higher · +2,990 lb (+15%)WS20,330 lb
D5B SA Special Application23,320 lb
Median Crawler Tractor23,320 lb
WS is in the 47th percentile; D5B SA Special Application is in the 50th · 173 models
WS (A)D5B SA Special Application (B)Median Crawler Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers WS | Caterpillar D5B SA Special Application | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Caterpillar | — |
| Model | WS | D5B SA Special Application | — |
| Category | Crawler, Agricultural | Crawler, Agricultural | Same |
Engine
| Spec | Allis Chalmers WS | Caterpillar D5B SA Special Application | Difference |
|---|---|---|---|
| Manufacturer | Allis-Chalmers | Caterpillar | — |
| Model | Not recorded | 3306 | — |
| Rated RPM | 1,050RPM | 1,900RPM | ▲ D5B SA Special Application+850 RPM · +81% |
| Cylinders | 4 | 6 | ▲ D5B SA Special Application+2 · +50% |
| Displacement | 675ci | 638ci | ▲ WS+37 ci · +6% |
| Bore | 6.3in | 4.8in | ▲ WS+1.5 in · +31% |
| Stroke | 6.5in | 6in | ▲ WS+0.5 in · +8% |
Transmission
| Spec | Allis Chalmers WS | Caterpillar D5B SA Special Application | Difference |
|---|---|---|---|
| Type | Gear | Gear | Same |
Dimensions & Weight
| Spec | Allis Chalmers WS | Caterpillar D5B SA Special Application | Difference |
|---|---|---|---|
| Length | Not recorded | 153in | — |
| Width | Not recorded | 92.3in | — |
| Operating Weight | 20,330lb | 23,320lb | ▲ D5B SA Special Application+2,990 lb · +15% |
Hydraulics
| Spec | Allis Chalmers WS | Caterpillar D5B SA Special Application | Difference |
|---|---|---|---|
| System Type | Not recorded | Open Center | — |
Chassis & Drive
| Spec | Allis Chalmers WS | Caterpillar D5B SA Special Application | Difference |
|---|---|---|---|
| Chassis Type | Not recorded | Crawler | — |
Electrical
| Spec | Allis Chalmers WS | Caterpillar D5B SA Special Application | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers WS | Caterpillar D5B SA Special Application | Difference |
|---|---|---|---|
| Coolant | 12.5gal | 9gal | ▲ WS+3.5 gal · +39% |
Category context
Both models against the field
Engine Displacement
median 468 ciA · 72nd percentile (675 ci)B · 70th percentile (638 ci)
Cylinders
median 6A · 33rd percentile (4)B · 50th percentile (6)
Forward Gears
median 10A · 25th percentile (5)B · 34th percentile (6)
Operating Weight
median 23,320 lbA · 47th percentile (20,330 lb)B · 50th percentile (23,320 lb)
A · WSB · D5B SA Special ApplicationMedian Crawler Tractor