Image not recorded
Allis ChalmersModel A
Allis Chalmers A
Standard Tread
- power
- Not recorded
- displacement
- 461 ci
- Cylinders
- 4
- Forward gears
- 4
Head to head · Standard Tread
Allis Chalmers A vs Challenger 65C
ChallengerModel B
Challenger 65C
Crawler
- power
- 285 hp
- displacement
- 638 ci
- Cylinders
- 6
- Forward gears
- 10
Allis ChalmersAllis Chalmers A
vs
ChallengerChallenger 65C
How they compare
Headline specs vs. the whole Standard Tread
Engine Displacement
▲ 65C higher · +177 ci (+38%)A461 ci
65C638 ci
Median Standard Tread Tractor382 ci
A is in the 62nd percentile; 65C is in the 81st · 353 models
Cylinders
▲ 65C higher · +2 (+50%)A4
65C6
Median Standard Tread Tractor4
A is in the 50th percentile; 65C is in the 93rd · 367 models
Forward Gears
▲ 65C higher · +6 (+150%)A4
65C10
Median Standard Tread Tractor4
A is in the 50th percentile; 65C is in the 96th · 341 models
Operating Weight
▲ 65C higher · +25,700 lb (+358%)A7,175 lb
65C32,875 lb
Median Standard Tread Tractor6,834 lb
A is in the 54th percentile; 65C is in the 99th · 297 models
A (A)65C (B)Median Standard Tread Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers A | Challenger 65C | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Challenger | — |
| Model | A | 65C | — |
| Category | Standard Tread | Crawler | — |
Engine
| Spec | Allis Chalmers A | Challenger 65C | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Caterpillar | — |
| Model | Not recorded | 3306 DITA | — |
| Power Output | Not recorded | 285hp | — |
| Rated RPM | Not recorded | 2,100RPM | — |
| Cylinders | 4 | 6 | ▲ 65C+2 · +50% |
| Displacement | 461ci | 638ci | ▲ 65C+177 ci · +38% |
| Bore | 4.8in | 4.8in | Same |
| Stroke | 6.5in | 6in | ▲ A+0.5 in · +8% |
Transmission
| Spec | Allis Chalmers A | Challenger 65C | Difference |
|---|---|---|---|
| Type | Non-synchronized gear | Full power shift | — |
Dimensions & Weight
| Spec | Allis Chalmers A | Challenger 65C | Difference |
|---|---|---|---|
| Length | 140in | 232in | ▲ 65C+92 in · +66% |
| Width | 63in | 120in | ▲ 65C+57 in · +90% |
| Height | 66in | 128in | ▲ 65C+62 in · +94% |
| Operating Weight | 7,175lb | 32,875lb | ▲ 65C+25,700 lb · +358% |
Hydraulics
| Spec | Allis Chalmers A | Challenger 65C | Difference |
|---|---|---|---|
| System Type | Not recorded | Closed center | — |
Tires
| Spec | Allis Chalmers A | Challenger 65C | Difference |
|---|---|---|---|
| Rear Tire Size | 48x12.1 | Not recorded | — |
Hitch & Towing
| Spec | Allis Chalmers A | Challenger 65C | Difference |
|---|---|---|---|
| Hitch Category | Not recorded | III/IV | — |
| Hitch Position | Not recorded | Rear | — |
Electrical
| Spec | Allis Chalmers A | Challenger 65C | Difference |
|---|---|---|---|
| Starter Type | Not recorded | Electric | — |
Capacities
| Spec | Allis Chalmers A | Challenger 65C | Difference |
|---|---|---|---|
| Coolant | Not recorded | 11gal | — |
Category context
Both models against the field
Engine Displacement
median 382 ciA · 62nd percentile (461 ci)B · 81st percentile (638 ci)
Cylinders
median 4A · 50th percentile (4)B · 93rd percentile (6)
Forward Gears
median 4A · 50th percentile (4)B · 96th percentile (10)
Operating Weight
median 6,834 lbA · 54th percentile (7,175 lb)B · 99th percentile (32,875 lb)
Length
median 137 inA · 55th percentile (140 in)B · 98th percentile (232 in)
A · AB · 65CMedian Standard Tread Tractor