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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 Lamborghini 105 Formula
Image not recorded
LamborghiniModel B
Lamborghini 105 Formula
Row Crop
- power
- 103 hp
- displacement
- 244 ci
- Cylinders
- 4
- Forward gears
- 40
Allis ChalmersAllis Chalmers D21 Series I
vs
LamborghiniLamborghini 105 Formula
How they compare
Headline specs vs. the whole Row Crop
Engine Power
= Effectively tiedD21 Series I103 hp
105 Formula103 hp
Median Row Crop Tractor138 hp
D21 Series I is in the 27th percentile; 105 Formula is in the 27th · 1,206 models
Engine Displacement
▲ D21 Series I higher · +182 ci (+75%)D21 Series I426 ci
105 Formula244 ci
Median Row Crop Tractor391 ci
D21 Series I is in the 72nd percentile; 105 Formula is in the 15th · 1,409 models
Cylinders
▲ D21 Series I higher · +2 (+50%)D21 Series I6
105 Formula4
Median Row Crop Tractor6
D21 Series I is in the 50th percentile; 105 Formula is in the 17th · 1,417 models
Forward Gears
▲ 105 Formula higher · +32 (+400%)D21 Series I8
105 Formula40
Median Row Crop Tractor16
D21 Series I is in the 16th percentile; 105 Formula is in the 98th · 1,200 models
D21 Series I (A)105 Formula (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Lamborghini | — |
| Model | D21 Series I | 105 Formula | — |
| Category | Row Crop | Row Crop | Same |
Engine
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | SAME | — |
| Model | 3400 | 1000.4WTI | — |
| Power Output | 103hp | 103hp | Same |
| Rated RPM | 2,200RPM | 2,500RPM | ▲ 105 Formula+300 RPM · +14% |
| Cylinders | 6 | 4 | ▲ D21 Series I+2 · +50% |
| Displacement | 426ci | 244ci | ▲ D21 Series I+182 ci · +75% |
| Bore | 4.3in | 4.1in | ▲ D21 Series I+0.2 in · +5% |
| Stroke | 5in | 4.6in | ▲ D21 Series I+0.5 in · +11% |
Transmission
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Type | Sliding gear with dry disc clutch | Synchromesh | — |
Dimensions & Weight
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Length | 161in | 161in | Same |
| Width | 91.6in | Not recorded | — |
| Height | 107in | 103in | ▲ D21 Series I+4 in · +4% |
| Operating Weight | 9,500lb | 8,246lb | ▲ D21 Series I+1,254 lb · +15% |
Hydraulics
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Steering Type | Power | Hydrostatic reactive power | — |
Power Take-off (PTO)
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Type | Independent | Fully independent hydraulically operated | — |
| Speed 1 | 1,000rpm | 540rpm | ▲ D21 Series I+460 rpm · +85% |
| Speed 2 | Not recorded | 1,000rpm | — |
Hitch & Towing
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Draft, mix, float and position control | — |
| Hitch Category | III/II | II | — |
| Hitch Position | Rear | Rear | Same |
| Hitch Capacity | Not recorded | 10,500lb | — |
Chassis & Drive
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Power | Hydrostatic reactive power | — |
| Brake Type | Band actuated disc | Disc type hydraulically operated | — |
Electrical
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Coolant | 5.3gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers D21 Series I | Lamborghini 105 Formula | Difference |
|---|---|---|---|
| Type | Open | Super deluxe platform "Q" cab | — |
Category context
Both models against the field
Engine Power
median 138 hpA · 27th percentile (103 hp)B · 27th percentile (103 hp)
Engine Displacement
median 391 ciA · 72nd percentile (426 ci)B · 15th percentile (244 ci)
Cylinders
median 6A · 50th percentile (6)B · 17th percentile (4)
Forward Gears
median 16A · 16th percentile (8)B · 98th percentile (40)
Operating Weight
median 12,307 lbA · 28th percentile (9,500 lb)B · 22nd percentile (8,246 lb)
A · D21 Series IB · 105 FormulaMedian Row Crop Tractor