Allis ChalmersModel A
Allis Chalmers D14
Row Crop
- power
- 37 hp
- displacement
- 149 ci
- Cylinders
- 4
- Forward gears
- 4
Head to head · Row Crop
Allis Chalmers D14 vs John Deere 840
John DeereModel B
John Deere 840
Utility
- power
- 37.5 hp
- displacement
- 179 ci
- Cylinders
- 3
- Forward gears
- 8
Allis ChalmersAllis Chalmers D14
vs
John DeereJohn Deere 840
How they compare
Headline specs vs. the whole Row Crop
Engine Power
▲ 840 higher · +0.5 hp (+1%)D1437 hp
84037.5 hp
Median Row Crop Tractor138 hp
D14 is in the 3rd percentile; 840 is in the 3rd · 1,206 models
Engine Displacement
▲ 840 higher · +30 ci (+20%)D14149 ci
840179 ci
Median Row Crop Tractor391 ci
D14 is in the 4th percentile; 840 is in the 6th · 1,409 models
Cylinders
▲ D14 higher · +1 (+33%)D144
8403
Median Row Crop Tractor6
D14 is in the 17th percentile; 840 is in the 2nd · 1,417 models
Forward Gears
▲ 840 higher · +4 (+100%)D144
8408
Median Row Crop Tractor16
D14 is in the 4th percentile; 840 is in the 16th · 1,200 models
D14 (A)840 (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | D14 | 840 | — |
| Category | Row Crop | Utility | — |
Engine
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| Manufacturer | Allis-Chalmers | John Deere | — |
| Model | Allis-Chalmers | Not recorded | — |
| Power Output | 37hp | 37.5hp | ▲ 840+0.5 hp · +1% |
| Rated RPM | 1,650RPM | 2,400RPM | ▲ 840+750 RPM · +45% |
| Cylinders | 4 | 3 | ▲ D14+1 · +33% |
| Displacement | 149ci | 179ci | ▲ 840+30 ci · +20% |
| Bore | 3.5in | 4.2in | ▲ 840+0.7 in · +20% |
| Stroke | 3.9in | 4.3in | ▲ 840+0.4 in · +10% |
Transmission
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| Type | Sliding Gear | Collar shift and two-speed power shift | — |
Dimensions & Weight
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| Length | 129in | 138in | ▲ 840+9 in · +7% |
| Width | Not recorded | 65.4in | — |
| Height | 79.5in | 103in | ▲ 840+23.5 in · +30% |
| Operating Weight | 3,500lb | 5,004lb | ▲ 840+1,504 lb · +43% |
Hydraulics
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| System Type | Not recorded | Closed center | — |
| Steering Type | Manual | Manual | Same |
Power Take-off (PTO)
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| Type | Rear PTO, Live | Not recorded | — |
| Speed 1 | 540rpm | Not recorded | — |
Hitch & Towing
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| Hitch Type | Allis Snap Coupler | Not recorded | — |
| Hitch Category | Not recorded | II/I | — |
| Hitch Position | Not recorded | Rear | — |
Chassis & Drive
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Manual | Manual | Same |
| Brake Type | Mechanical expanding shoe | Not recorded | — |
Electrical
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| Coolant | 2.3gal | 2.8gal | ▲ 840+0.5 gal · +22% |
Operator Station
| Spec | Allis Chalmers D14 | John Deere 840 | Difference |
|---|---|---|---|
| Type | Open operator station | Not recorded | — |
Category context
Both models against the field
Engine Power
median 138 hpA · 3rd percentile (37 hp)B · 3rd percentile (37.5 hp)
Engine Displacement
median 391 ciA · 4th percentile (149 ci)B · 6th percentile (179 ci)
Cylinders
median 6A · 17th percentile (4)B · 2nd percentile (3)
Forward Gears
median 16A · 4th percentile (4)B · 16th percentile (8)
Operating Weight
median 12,307 lbA · 3rd percentile (3,500 lb)B · 8th percentile (5,004 lb)
A · D14B · 840Median Row Crop Tractor