Allis ChalmersModel A
Allis Chalmers HD21
Agricultural
- power
- 225 hp
- displacement
- 844 ci
- Cylinders
- 6
- Forward gears
- 2
Head to head · Agricultural
Allis Chalmers HD21 vs Steiger Bearcat III PT-225
Image not recorded
SteigerModel B
Steiger Bearcat III PT-225
Utility
- power
- 225 hp
- displacement
- 638 ci
- Cylinders
- 6
- Forward gears
- 20
Allis ChalmersAllis Chalmers HD21
vs
SteigerSteiger Bearcat III PT-225
How they compare
Headline specs vs. the whole Agricultural
Engine Power
= Effectively tiedHD21225 hp
Bearcat III PT-225225 hp
Median Agricultural Tractor110 hp
HD21 is in the 84th percentile; Bearcat III PT-225 is in the 84th · 1,028 models
Engine Displacement
▲ HD21 higher · +206 ci (+32%)HD21844 ci
Bearcat III PT-225638 ci
Median Agricultural Tractor336 ci
HD21 is in the 96th percentile; Bearcat III PT-225 is in the 94th · 1,083 models
Cylinders
= Effectively tiedHD216
Bearcat III PT-2256
Median Agricultural Tractor5.5
HD21 is in the 74th percentile; Bearcat III PT-225 is in the 74th · 1,130 models
Forward Gears
▲ Bearcat III PT-225 higher · +18 (+900%)HD212
Bearcat III PT-22520
Median Agricultural Tractor16
HD21 is in the 1st percentile; Bearcat III PT-225 is in the 74th · 972 models
HD21 (A)Bearcat III PT-225 (B)Median Agricultural Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD21 | Steiger Bearcat III PT-225 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Steiger | — |
| Model | HD21 | Bearcat III PT-225 | — |
| Category | Agricultural | Utility | — |
Engine
| Spec | Allis Chalmers HD21 | Steiger Bearcat III PT-225 | Difference |
|---|---|---|---|
| Manufacturer | Allis-Chalmers | Caterpillar | — |
| Model | Not recorded | 3306T | — |
| Power Output | 225hp | 225hp | Same |
| Rated RPM | 1,800RPM | 2,200RPM | ▲ Bearcat III PT-225+400 RPM · +22% |
| Cylinders | 6 | 6 | Same |
| Displacement | 844ci | 638ci | ▲ HD21+206 ci · +32% |
| Bore | 5.3in | 4.8in | ▲ HD21+0.5 in · +10% |
| Stroke | 6.5in | 6in | ▲ HD21+0.5 in · +8% |
Transmission
| Spec | Allis Chalmers HD21 | Steiger Bearcat III PT-225 | Difference |
|---|---|---|---|
| Type | Torque Converter | Constant mesh | — |
Dimensions & Weight
| Spec | Allis Chalmers HD21 | Steiger Bearcat III PT-225 | Difference |
|---|---|---|---|
| Length | 198in | 265in | ▲ Bearcat III PT-225+67 in · +34% |
| Width | Not recorded | 120in | — |
| Height | 99in | 156in | ▲ Bearcat III PT-225+57 in · +58% |
| Operating Weight | 45,500lb | 28,295lb | ▲ HD21+17,205 lb · +61% |
Hydraulics
| Spec | Allis Chalmers HD21 | Steiger Bearcat III PT-225 | Difference |
|---|---|---|---|
| System Type | Not recorded | Open center | — |
| Steering Type | Not recorded | Hydraulic power | — |
Hitch & Towing
| Spec | Allis Chalmers HD21 | Steiger Bearcat III PT-225 | Difference |
|---|---|---|---|
| Hitch Category | Not recorded | III | — |
Chassis & Drive
| Spec | Allis Chalmers HD21 | Steiger Bearcat III PT-225 | Difference |
|---|---|---|---|
| Chassis Type | Not recorded | 4x4 articulated 4WD | — |
| Drive Type | Not recorded | 4WD | — |
| Steering Type | Not recorded | Hydraulic power | — |
Electrical
| Spec | Allis Chalmers HD21 | Steiger Bearcat III PT-225 | Difference |
|---|---|---|---|
| Starter Type | Electric | 12-volt | — |
Capacities
| Spec | Allis Chalmers HD21 | Steiger Bearcat III PT-225 | Difference |
|---|---|---|---|
| Coolant | 20gal | 13gal | ▲ HD21+7 gal · +54% |
Category context
Both models against the field
Engine Power
median 110 hpA · 84th percentile (225 hp)B · 84th percentile (225 hp)
Engine Displacement
median 336 ciA · 96th percentile (844 ci)B · 94th percentile (638 ci)
Cylinders
median 5.5A · 74th percentile (6)B · 74th percentile (6)
Forward Gears
median 16A · 1st percentile (2)B · 74th percentile (20)
Operating Weight
median 10,914 lbA · 99th percentile (45,500 lb)B · 94th percentile (28,295 lb)
A · HD21B · Bearcat III PT-225Median Agricultural Tractor