Allis ChalmersModel A
Allis Chalmers D15 Series I
Row Crop
- power
- 40 hp
- displacement
- 149 ci
- Cylinders
- 4
- Forward gears
- 8
Head to head · Row Crop
Allis Chalmers D15 Series I vs Fiat 421R
Allis ChalmersAllis Chalmers D15 Series I
vs
FiatFiat 421R
How they compare
Headline specs vs. the whole Row Crop
Engine Power
= Effectively tiedD15 Series I40 hp
421R40 hp
Median Row Crop Tractor138 hp
D15 Series I is in the 4th percentile; 421R is in the 4th · 1,206 models
Engine Displacement
▲ D15 Series I higher · +10 ci (+7%)D15 Series I149 ci
421R139 ci
Median Row Crop Tractor391 ci
D15 Series I is in the 4th percentile; 421R is in the 3rd · 1,409 models
Cylinders
= Effectively tiedD15 Series I4
421R4
Median Row Crop Tractor6
D15 Series I is in the 17th percentile; 421R is in the 17th · 1,417 models
Forward Gears
▲ D15 Series I higher · +2 (+33%)D15 Series I8
421R6
Median Row Crop Tractor16
D15 Series I is in the 16th percentile; 421R is in the 11th · 1,200 models
D15 Series I (A)421R (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Fiat | — |
| Model | D15 Series I | 421R | — |
| Category | Row Crop | Agricultural, Orchard/Vineyard | — |
Engine
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Fiat | — |
| Model | Allis Chalmers | Not recorded | — |
| Power Output | 40hp | 40hp | Same |
| Rated RPM | 2,000RPM | 2,300RPM | ▲ 421R+300 RPM · +15% |
| Cylinders | 4 | 4 | Same |
| Displacement | 149ci | 139ci | ▲ D15 Series I+10 ci · +7% |
| Bore | 3.5in | 3.4in | ▲ D15 Series I+0.1 in · +3% |
| Stroke | 3.9in | 3.9in | Same |
Transmission
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Type | Partial Power Shift | Gear | — |
Dimensions & Weight
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Length | 130in | 114in | ▲ D15 Series I+16 in · +14% |
| Width | 66.9in | 59.1in | ▲ D15 Series I+7.8 in · +13% |
| Height | 79.9in | 53.2in | ▲ D15 Series I+26.7 in · +50% |
| Operating Weight | 3,990lb | 3,087lb | ▲ D15 Series I+903 lb · +29% |
Hydraulics
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Steering Type | Manual | Manual | Same |
Power Take-off (PTO)
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Type | Live | Not recorded | — |
| Speed 1 | 540rpm | Not recorded | — |
Hitch & Towing
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Hitch Type | Snap-Coupler | Not recorded | — |
| Hitch Category | II/I | Category 3 | — |
| Hitch Position | Rear | Not recorded | — |
Chassis & Drive
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Manual | Manual | Same |
| Brake Type | Expanding shoe | Not recorded | — |
Electrical
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Coolant | 2.8gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers D15 Series I | Fiat 421R | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context
Both models against the field
Engine Power
median 138 hpA · 4th percentile (40 hp)B · 4th percentile (40 hp)
Engine Displacement
median 391 ciA · 4th percentile (149 ci)B · 3rd percentile (139 ci)
Cylinders
median 6A · 17th percentile (4)B · 17th percentile (4)
Forward Gears
median 16A · 16th percentile (8)B · 11th percentile (6)
Operating Weight
median 12,307 lbA · 5th percentile (3,990 lb)B · 2nd percentile (3,087 lb)
A · D15 Series IB · 421RMedian Row Crop Tractor