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Allis ChalmersModel A
Allis Chalmers CA
Row Crop
- power
- 23.1 hp
- displacement
- 125 ci
- Cylinders
- 4
- Forward gears
- 4
Head to head · Row Crop
Allis Chalmers CA vs Silver King R66
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Silver KingModel B
Silver King R66
Row Crop
- power
- 24.5 hp
- displacement
- 113 ci
- Cylinders
- 4
- Forward gears
- 4
Allis ChalmersAllis Chalmers CA
vs
Silver KingSilver King R66
How they compare
Headline specs vs. the whole Row Crop
Engine Power
▲ R66 higher · +1.4 hp (+6%)CA23.1 hp
R6624.5 hp
Median Row Crop Tractor138 hp
CA is in the 2nd percentile; R66 is in the 2nd · 1,206 models
Engine Displacement
▲ CA higher · +12 ci (+11%)CA125 ci
R66113 ci
Median Row Crop Tractor391 ci
CA is in the 2nd percentile; R66 is in the 1st · 1,409 models
Cylinders
= Effectively tiedCA4
R664
Median Row Crop Tractor6
CA is in the 17th percentile; R66 is in the 17th · 1,417 models
Forward Gears
= Effectively tiedCA4
R664
Median Row Crop Tractor16
CA is in the 4th percentile; R66 is in the 4th · 1,200 models
CA (A)R66 (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Silver King | — |
| Model | CA | R66 | — |
| Category | Row Crop | Row Crop | Same |
Engine
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Hercules | — |
| Model | Allis Chalmers | Not recorded | — |
| Power Output | 23.1hp | 24.5hp | ▲ R66+1.4 hp · +6% |
| Rated RPM | 1,650RPM | 1,400RPM | ▲ CA+250 RPM · +18% |
| Cylinders | 4 | 4 | Same |
| Displacement | 125ci | 113ci | ▲ CA+12 ci · +11% |
| Bore | 3.4in | 3in | ▲ CA+0.4 in · +13% |
| Stroke | 3.5in | 4in | ▲ R66+0.5 in · +14% |
Transmission
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Type | Non-synchronized gear | Gear | — |
Dimensions & Weight
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Length | 125in | 128in | ▲ R66+3 in · +2% |
| Width | Not recorded | 75in | — |
| Height | 72.8in | 64in | ▲ CA+8.8 in · +14% |
| Operating Weight | 2,835lb | 2,790lb | ▲ CA+45 lb · +2% |
Hydraulics
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Steering Type | Manual | Manual | Same |
Power Take-off (PTO)
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Type | Live | Not recorded | — |
| Speed 1 | 538rpm | Not recorded | — |
Hitch & Towing
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Hitch Type | Allis Snap Coupler | Not recorded | — |
Chassis & Drive
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 3x2 2WD | — |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Manual | Manual | Same |
| Brake Type | Differential mechanical contracting band | Not recorded | — |
Electrical
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Starter Type | Electric | Not recorded | — |
Capacities
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Coolant | 2.3gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers CA | Silver King R66 | Difference |
|---|---|---|---|
| Type | Open | Open | Same |
Category context
Both models against the field
Engine Power
median 138 hpA · 2nd percentile (23.1 hp)B · 2nd percentile (24.5 hp)
Engine Displacement
median 391 ciA · 2nd percentile (125 ci)B · 1st percentile (113 ci)
Cylinders
median 6A · 17th percentile (4)B · 17th percentile (4)
Forward Gears
median 16A · 4th percentile (4)B · 4th percentile (4)
Operating Weight
median 12,307 lbA · 2nd percentile (2,835 lb)B · 2nd percentile (2,790 lb)
A · CAB · R66Median Row Crop Tractor