Allis ChalmersModel A
Allis Chalmers HD7
Crawler
- power
- Not recorded
- displacement
- 213 ci
- Cylinders
- 3
- Forward gears
- 4
Head to head · Agricultural
Allis Chalmers HD7 vs Oliver 1900
Image not recorded
OliverModel B
Oliver 1900
Agricultural
- power
- Not recorded
- displacement
- 212 ci
- Cylinders
- 4
- Forward gears
- 12
Allis ChalmersAllis Chalmers HD7
vs
OliverOliver 1900
How they compare
Headline specs vs. the whole Agricultural
Engine Displacement
▲ HD7 higher · +1 ci (<1%)HD7213 ci
1900212 ci
Median Agricultural Tractor336 ci
HD7 is in the 18th percentile; 1900 is in the 18th · 1,083 models
Cylinders
▲ 1900 higher · +1 (+33%)HD73
19004
Median Agricultural Tractor5.5
HD7 is in the 8th percentile; 1900 is in the 31st · 1,130 models
Forward Gears
▲ 1900 higher · +8 (+200%)HD74
190012
Median Agricultural Tractor16
HD7 is in the 3rd percentile; 1900 is in the 33rd · 972 models
Operating Weight
▲ HD7 higher · +2,000 lb (+17%)HD714,000 lb
190012,000 lb
Median Agricultural Tractor10,914 lb
HD7 is in the 65th percentile; 1900 is in the 56th · 971 models
HD7 (A)1900 (B)Median Agricultural Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD7 | Oliver 1900 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Oliver | — |
| Model | HD7 | 1900 | — |
| Category | Crawler, Agricultural | Agricultural | — |
Engine
| Spec | Allis Chalmers HD7 | Oliver 1900 | Difference |
|---|---|---|---|
| Manufacturer | General Motors | General Motors | Same |
| Model | Mar-71 | Apr-53 | — |
| Rated RPM | 1,500RPM | 2,200RPM | ▲ 1900+700 RPM · +47% |
| Cylinders | 3 | 4 | ▲ 1900+1 · +33% |
| Displacement | 213ci | 212ci | ▲ HD7+1 ci · <1% |
| Bore | 4.3in | 3.9in | ▲ HD7+0.4 in · +10% |
| Stroke | 5in | 4.5in | ▲ HD7+0.5 in · +11% |
Transmission
| Spec | Allis Chalmers HD7 | Oliver 1900 | Difference |
|---|---|---|---|
| Type | Sliding Gear | Partial power shift | — |
Dimensions & Weight
| Spec | Allis Chalmers HD7 | Oliver 1900 | Difference |
|---|---|---|---|
| Length | 128in | 157in | ▲ 1900+29 in · +23% |
| Width | 81in | 97in | ▲ 1900+16 in · +20% |
| Height | 69in | 76in | ▲ 1900+7 in · +10% |
| Operating Weight | 14,000lb | 12,000lb | ▲ HD7+2,000 lb · +17% |
Hydraulics
| Spec | Allis Chalmers HD7 | Oliver 1900 | Difference |
|---|---|---|---|
| Steering Type | Not recorded | Manual | — |
Hitch & Towing
| Spec | Allis Chalmers HD7 | Oliver 1900 | Difference |
|---|---|---|---|
| Hitch Type | Not recorded | Three-Point Hitch | — |
| Hitch Category | Not recorded | II/I | — |
| Hitch Position | Not recorded | Rear | — |
Chassis & Drive
| Spec | Allis Chalmers HD7 | Oliver 1900 | Difference |
|---|---|---|---|
| Chassis Type | Crawler | Not recorded | — |
| Drive Type | Track | Not recorded | — |
| Steering Type | Not recorded | Manual | — |
Electrical
| Spec | Allis Chalmers HD7 | Oliver 1900 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers HD7 | Oliver 1900 | Difference |
|---|---|---|---|
| Coolant | 5.8gal | 5.3gal | ▲ HD7+0.5 gal · +9% |
Category context
Both models against the field
Engine Displacement
median 336 ciA · 18th percentile (213 ci)B · 18th percentile (212 ci)
Cylinders
median 5.5A · 8th percentile (3)B · 31st percentile (4)
Forward Gears
median 16A · 3rd percentile (4)B · 33rd percentile (12)
Operating Weight
median 10,914 lbA · 65th percentile (14,000 lb)B · 56th percentile (12,000 lb)
Length
median 173 inA · 11th percentile (128 in)B · 33rd percentile (157 in)
A · HD7B · 1900Median Agricultural Tractor