Allis ChalmersModel A
Allis Chalmers S
Crawler
- power
- Not recorded
- displacement
- 675 ci
- Cylinders
- 4
- Forward gears
- 5
Head to head · Crawler
Allis Chalmers S vs Caterpillar Fifty
Image not recorded
CaterpillarModel B
Caterpillar Fifty
Industrial
- power
- Not recorded
- displacement
- 693 ci
- Cylinders
- 4
- Forward gears
- 4
Allis ChalmersAllis Chalmers S
vs
CaterpillarCaterpillar Fifty
How they compare
Headline specs vs. the whole Crawler
Engine Displacement
▲ Fifty higher · +18 ci (+3%)S675 ci
Fifty693 ci
Median Crawler Tractor468 ci
S is in the 72nd percentile; Fifty is in the 73rd · 191 models
Cylinders
= Effectively tiedS4
Fifty4
Median Crawler Tractor6
S is in the 33rd percentile; Fifty is in the 33rd · 192 models
Forward Gears
▲ S higher · +1 (+25%)S5
Fifty4
Median Crawler Tractor10
S is in the 25th percentile; Fifty is in the 16th · 179 models
Operating Weight
▲ S higher · +1,855 lb (+10%)S20,100 lb
Fifty18,245 lb
Median Crawler Tractor23,320 lb
S is in the 46th percentile; Fifty is in the 45th · 173 models
S (A)Fifty (B)Median Crawler Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers S | Caterpillar Fifty | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Caterpillar | — |
| Model | S | Fifty | — |
| Category | Crawler, Agricultural | Industrial | — |
Engine
| Spec | Allis Chalmers S | Caterpillar Fifty | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Caterpillar | — |
| Model | Not recorded | 4-cyl gasoline | — |
| Rated RPM | 1,050RPM | 850RPM | ▲ S+200 RPM · +24% |
| Cylinders | 4 | 4 | Same |
| Displacement | 675ci | 693ci | ▲ Fifty+18 ci · +3% |
| Bore | 5.8in | 5.3in | ▲ S+0.5 in · +9% |
| Stroke | 6.5in | 8in | ▲ Fifty+1.5 in · +23% |
Transmission
| Spec | Allis Chalmers S | Caterpillar Fifty | Difference |
|---|---|---|---|
| Type | Gear | Gear | Same |
Dimensions & Weight
| Spec | Allis Chalmers S | Caterpillar Fifty | Difference |
|---|---|---|---|
| Length | 146in | Not recorded | — |
| Width | 97in | 15in | ▲ S+82 in · +547% |
| Height | 74in | Not recorded | — |
| Operating Weight | 20,100lb | 18,245lb | ▲ S+1,855 lb · +10% |
Hydraulics
| Spec | Allis Chalmers S | Caterpillar Fifty | Difference |
|---|---|---|---|
| Steering Type | Manual | Not recorded | — |
Chassis & Drive
| Spec | Allis Chalmers S | Caterpillar Fifty | Difference |
|---|---|---|---|
| Chassis Type | Crawler | Not recorded | — |
| Drive Type | Track | Not recorded | — |
| Steering Type | Manual | Not recorded | — |
Electrical
| Spec | Allis Chalmers S | Caterpillar Fifty | Difference |
|---|---|---|---|
| Starter Type | Electric | Not recorded | — |
Capacities
| Spec | Allis Chalmers S | Caterpillar Fifty | Difference |
|---|---|---|---|
| Coolant | 12.5gal | Not recorded | — |
Category context
Both models against the field
Engine Displacement
median 468 ciA · 72nd percentile (675 ci)B · 73rd percentile (693 ci)
Cylinders
median 6A · 33rd percentile (4)B · 33rd percentile (4)
Forward Gears
median 10A · 25th percentile (5)B · 16th percentile (4)
Operating Weight
median 23,320 lbA · 46th percentile (20,100 lb)B · 45th percentile (18,245 lb)
Width
median 79.5 inA · 65th percentile (97 in)B · 2nd percentile (15 in)
A · SB · FiftyMedian Crawler Tractor