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Allis ChalmersModel A
Allis Chalmers D21 Series I
Row Crop
- power
- 103 hp
- displacement
- 426 ci
- Cylinders
- 6
- Forward gears
- 8
Head to head · Row Crop
Allis Chalmers D21 Series I vs John Deere 6430 Premium
John DeereModel B
John Deere 6430 Premium
Row Crop
- power
- 106 hp
- displacement
- 276 ci
- Cylinders
- 4
- Forward gears
- 16
Allis ChalmersAllis Chalmers D21 Series I
vs
John DeereJohn Deere 6430 Premium
How they compare
Headline specs vs. the whole Row Crop
Engine Power
▲ 6430 Premium higher · +3 hp (+3%)D21 Series I103 hp
6430 Premium106 hp
Median Row Crop Tractor138 hp
D21 Series I is in the 27th percentile; 6430 Premium is in the 29th · 1,206 models
Engine Displacement
▲ D21 Series I higher · +150 ci (+54%)D21 Series I426 ci
6430 Premium276 ci
Median Row Crop Tractor391 ci
D21 Series I is in the 72nd percentile; 6430 Premium is in the 25th · 1,409 models
Cylinders
▲ D21 Series I higher · +2 (+50%)D21 Series I6
6430 Premium4
Median Row Crop Tractor6
D21 Series I is in the 50th percentile; 6430 Premium is in the 17th · 1,417 models
Forward Gears
▲ 6430 Premium higher · +8 (+100%)D21 Series I8
6430 Premium16
Median Row Crop Tractor16
D21 Series I is in the 16th percentile; 6430 Premium is in the 50th · 1,200 models
D21 Series I (A)6430 Premium (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | D21 Series I | 6430 Premium | — |
| Category | Row Crop | Row Crop | Same |
Engine
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | 3400 | 4045HL480 PowerTech Plus | — |
| Power Output | 103hp | 106hp | ▲ 6430 Premium+3 hp · +3% |
| Rated RPM | 2,200RPM | 2,300RPM | ▲ 6430 Premium+100 RPM · +5% |
| Cylinders | 6 | 4 | ▲ D21 Series I+2 · +50% |
| Displacement | 426ci | 276ci | ▲ D21 Series I+150 ci · +54% |
| Bore | 4.3in | 4.2in | ▲ D21 Series I+0.1 in · +2% |
| Stroke | 5in | 5in | Same |
Transmission
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Type | Sliding gear with dry disc clutch | Selective gear fixed ratio with partial (4) range operator controlled power shift | — |
Dimensions & Weight
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Length | 161in | Not recorded | — |
| Width | 91.6in | Not recorded | — |
| Height | 107in | Not recorded | — |
| Wheelbase | Not recorded | 94.5in | — |
| Operating Weight | 9,500lb | 10,615lb | ▲ 6430 Premium+1,115 lb · +12% |
Hydraulics
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| System Type | Not recorded | Closed-center pressure and flow compensated (PFC) | — |
| Steering Type | Power | Hydrostatic power | — |
Power Take-off (PTO)
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Type | Independent | Independent | Same |
| Speed 1 | 1,000rpm | 540rpm | ▲ D21 Series I+460 rpm · +85% |
| Speed 2 | Not recorded | 1,000rpm | — |
Tires
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Front Tire Size | Not recorded | 420/85R24 | — |
| Rear Tire Size | Not recorded | 460/85R38 | — |
Hitch & Towing
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Three-Point Hitch | Same |
| Hitch Category | III/II | Not recorded | — |
| Hitch Position | Rear | Rear | Same |
Chassis & Drive
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x4 MFWD 4WD | — |
| Drive Type | 2WD | 4WD | — |
| Steering Type | Power | Hydrostatic power | — |
| Brake Type | Band actuated disc | Differential hydraulic wet disc | — |
Electrical
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Coolant | 5.3gal | 7.7gal | ▲ 6430 Premium+2.4 gal · +45% |
Operator Station
| Spec | Allis Chalmers D21 Series I | John Deere 6430 Premium | Difference |
|---|---|---|---|
| Type | Open | ComfortGard Cab | — |
Category context
Both models against the field
Engine Power
median 138 hpA · 27th percentile (103 hp)B · 29th percentile (106 hp)
Engine Displacement
median 391 ciA · 72nd percentile (426 ci)B · 25th percentile (276 ci)
Cylinders
median 6A · 50th percentile (6)B · 17th percentile (4)
Forward Gears
median 16A · 16th percentile (8)B · 50th percentile (16)
Operating Weight
median 12,307 lbA · 28th percentile (9,500 lb)B · 36th percentile (10,615 lb)
A · D21 Series IB · 6430 PremiumMedian Row Crop Tractor