Allis ChalmersModel A
Allis Chalmers D21 Series II
Row Crop
- power
- 121 hp
- displacement
- 426 ci
- Cylinders
- 6
- Forward gears
- 8
Head to head · Row Crop
Allis Chalmers D21 Series II vs White 6124
Allis ChalmersAllis Chalmers D21 Series II
vs
WhiteWhite 6124
How they compare
Headline specs vs. the whole Row Crop
Engine Power
▲ 6124 higher · +4 hp (+3%)D21 Series II121 hp
6124125 hp
Median Row Crop Tractor138 hp
D21 Series II is in the 40th percentile; 6124 is in the 42nd · 1,206 models
Engine Displacement
▲ D21 Series II higher · +67 ci (+19%)D21 Series II426 ci
6124359 ci
Median Row Crop Tractor391 ci
D21 Series II is in the 72nd percentile; 6124 is in the 41st · 1,409 models
Cylinders
= Effectively tiedD21 Series II6
61246
Median Row Crop Tractor6
D21 Series II is in the 50th percentile; 6124 is in the 50th · 1,417 models
Forward Gears
▲ 6124 higher · +24 (+300%)D21 Series II8
612432
Median Row Crop Tractor16
D21 Series II is in the 16th percentile; 6124 is in the 91st · 1,200 models
D21 Series II (A)6124 (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | White | — |
| Model | D21 Series II | 6124 | — |
| Category | Row Crop | Row Crop | Same |
Engine
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | CDC-Cummins | — |
| Model | 3500 | 6BT5.9 | — |
| Power Output | 121hp | 125hp | ▲ 6124+4 hp · +3% |
| Rated RPM | 2,200RPM | 2,200RPM | Same |
| Cylinders | 6 | 6 | Same |
| Displacement | 426ci | 359ci | ▲ D21 Series II+67 ci · +19% |
| Bore | 4.3in | 4in | ▲ D21 Series II+0.3 in · +7% |
| Stroke | 5in | 4.7in | ▲ D21 Series II+0.3 in · +6% |
Transmission
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| Type | Sliding gear with dry disc clutch | Partial power shift | — |
Dimensions & Weight
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| Length | 160in | Not recorded | — |
| Width | 91.3in | Not recorded | — |
| Height | 106in | Not recorded | — |
| Operating Weight | 9,502lb | 14,860lb | ▲ 6124+5,358 lb · +56% |
Hydraulics
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| System Type | Not recorded | Closed center | — |
| Steering Type | Power | Hydrostatic power | — |
Power Take-off (PTO)
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 1,000rpm | Not recorded | — |
Hitch & Towing
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III/II | II,III | — |
| Hitch Position | Rear | Not recorded | — |
Chassis & Drive
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Power | Hydrostatic power | — |
| Brake Type | Band actuated disc | Not recorded | — |
Electrical
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| Coolant | 7.8gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers D21 Series II | White 6124 | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context
Both models against the field
Engine Power
median 138 hpA · 40th percentile (121 hp)B · 42nd percentile (125 hp)
Engine Displacement
median 391 ciA · 72nd percentile (426 ci)B · 41st percentile (359 ci)
Cylinders
median 6A · 50th percentile (6)B · 50th percentile (6)
Forward Gears
median 16A · 16th percentile (8)B · 91st percentile (32)
Operating Weight
median 12,307 lbA · 28th percentile (9,502 lb)B · 65th percentile (14,860 lb)
A · D21 Series IIB · 6124Median Row Crop Tractor