Image not recorded
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 Claas 456 Celtis
Image not recorded
ClaasModel B
Claas 456 Celtis
Utility
- power
- 102 hp
- displacement
- 276 ci
- Cylinders
- 4
- Forward gears
- 10
Allis ChalmersAllis Chalmers D21 Series I
vs
ClaasClaas 456 Celtis
How they compare
Headline specs vs. the whole Row Crop
Engine Power
▲ D21 Series I higher · +1 hp (<1%)D21 Series I103 hp
456 Celtis102 hp
Median Row Crop Tractor138 hp
D21 Series I is in the 27th percentile; 456 Celtis is in the 26th · 1,206 models
Engine Displacement
▲ D21 Series I higher · +150 ci (+54%)D21 Series I426 ci
456 Celtis276 ci
Median Row Crop Tractor391 ci
D21 Series I is in the 72nd percentile; 456 Celtis is in the 26th · 1,409 models
Cylinders
▲ D21 Series I higher · +2 (+50%)D21 Series I6
456 Celtis4
Median Row Crop Tractor6
D21 Series I is in the 50th percentile; 456 Celtis is in the 17th · 1,417 models
Forward Gears
▲ 456 Celtis higher · +2 (+25%)D21 Series I8
456 Celtis10
Median Row Crop Tractor16
D21 Series I is in the 16th percentile; 456 Celtis is in the 22nd · 1,200 models
D21 Series I (A)456 Celtis (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers D21 Series I | Claas 456 Celtis | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Claas | — |
| Model | D21 Series I | 456 Celtis | — |
| Category | Row Crop | Utility | — |
Engine
| Spec | Allis Chalmers D21 Series I | Claas 456 Celtis | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Deere Power Systems (DPS) | — |
| Model | 3400 | 4045 DRT72 | — |
| Power Output | 103hp | 102hp | ▲ D21 Series I+1 hp · <1% |
| Rated RPM | 2,200RPM | 2,000RPM | ▲ D21 Series I+200 RPM · +10% |
| 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 | Claas 456 Celtis | Difference |
|---|---|---|---|
| Type | Sliding gear with dry disc clutch | Not recorded | — |
Dimensions & Weight
| Spec | Allis Chalmers D21 Series I | Claas 456 Celtis | Difference |
|---|---|---|---|
| Length | 161in | 156in | ▲ D21 Series I+5 in · +3% |
| Width | 91.6in | Not recorded | — |
| Height | 107in | Not recorded | — |
| Operating Weight | 9,500lb | 8,445lb | ▲ D21 Series I+1,055 lb · +12% |
Hydraulics
| Spec | Allis Chalmers D21 Series I | Claas 456 Celtis | Difference |
|---|---|---|---|
| Steering Type | Power | Hydrostatic Power Steering | — |
Power Take-off (PTO)
| Spec | Allis Chalmers D21 Series I | Claas 456 Celtis | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 1,000rpm | Not recorded | — |
Hitch & Towing
| Spec | Allis Chalmers D21 Series I | Claas 456 Celtis | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III/II | Not recorded | — |
| Hitch Position | Rear | Not recorded | — |
Chassis & Drive
| Spec | Allis Chalmers D21 Series I | Claas 456 Celtis | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x4 MFWD 4WD | — |
| Drive Type | 2WD | 4WD | — |
| Steering Type | Power | Hydrostatic Power Steering | — |
| Brake Type | Band actuated disc | Not recorded | — |
Electrical
| Spec | Allis Chalmers D21 Series I | Claas 456 Celtis | Difference |
|---|---|---|---|
| Starter Type | Electric | Not recorded | — |
Capacities
| Spec | Allis Chalmers D21 Series I | Claas 456 Celtis | Difference |
|---|---|---|---|
| Coolant | 5.3gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers D21 Series I | Claas 456 Celtis | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context
Both models against the field
Engine Power
median 138 hpA · 27th percentile (103 hp)B · 26th percentile (102 hp)
Engine Displacement
median 391 ciA · 72nd percentile (426 ci)B · 26th percentile (276 ci)
Cylinders
median 6A · 50th percentile (6)B · 17th percentile (4)
Forward Gears
median 16A · 16th percentile (8)B · 22nd percentile (10)
Operating Weight
median 12,307 lbA · 28th percentile (9,500 lb)B · 23rd percentile (8,445 lb)
A · D21 Series IB · 456 CeltisMedian Row Crop Tractor