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Allis ChalmersModel A
Allis Chalmers HD10
Crawler
- power
- Not recorded
- displacement
- 284 ci
- Cylinders
- 4
- Forward gears
- 6
Head to head · Crawler
Allis Chalmers HD10 vs Allis Chalmers HD7
Allis ChalmersModel B
Allis Chalmers HD7
Crawler
- power
- Not recorded
- displacement
- 213 ci
- Cylinders
- 3
- Forward gears
- 4
Allis ChalmersAllis Chalmers HD10
vs
Allis ChalmersAllis Chalmers HD7
How they compare
Headline specs vs. the whole Crawler
Engine Displacement
▲ HD10 higher · +71 ci (+33%)HD10284 ci
HD7213 ci
Median Crawler Tractor468 ci
HD10 is in the 40th percentile; HD7 is in the 29th · 191 models
Cylinders
▲ HD10 higher · +1 (+33%)HD104
HD73
Median Crawler Tractor6
HD10 is in the 33rd percentile; HD7 is in the 10th · 192 models
Forward Gears
▲ HD10 higher · +2 (+50%)HD106
HD74
Median Crawler Tractor10
HD10 is in the 34th percentile; HD7 is in the 16th · 179 models
Operating Weight
▲ HD10 higher · +6,380 lb (+46%)HD1020,380 lb
HD714,000 lb
Median Crawler Tractor23,320 lb
HD10 is in the 48th percentile; HD7 is in the 43rd · 173 models
HD10 (A)HD7 (B)Median Crawler Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD10 | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Allis Chalmers | Same |
| Model | HD10 | HD7 | — |
| Category | Crawler | Crawler, Agricultural | — |
Engine
| Spec | Allis Chalmers HD10 | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Manufacturer | General Motors | General Motors | Same |
| Model | Not recorded | Mar-71 | — |
| Rated RPM | 1,600RPM | 1,500RPM | ▲ HD10+100 RPM · +7% |
| Cylinders | 4 | 3 | ▲ HD10+1 · +33% |
| Displacement | 284ci | 213ci | ▲ HD10+71 ci · +33% |
| Bore | 4.3in | 4.3in | Same |
| Stroke | 5in | 5in | Same |
Transmission
| Spec | Allis Chalmers HD10 | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Type | Sliding Gear | Sliding Gear | Same |
Dimensions & Weight
| Spec | Allis Chalmers HD10 | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Length | 150in | 128in | ▲ HD10+22 in · +17% |
| Width | 94in | 81in | ▲ HD10+13 in · +16% |
| Height | 78in | 69in | ▲ HD10+9 in · +13% |
| Operating Weight | 20,380lb | 14,000lb | ▲ HD10+6,380 lb · +46% |
Chassis & Drive
| Spec | Allis Chalmers HD10 | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Chassis Type | Track | Crawler | — |
| Drive Type | Tracked | Track | — |
Electrical
| Spec | Allis Chalmers HD10 | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers HD10 | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Coolant | 9.8gal | 5.8gal | ▲ HD10+4 gal · +69% |
Category context
Both models against the field
Engine Displacement
median 468 ciA · 40th percentile (284 ci)B · 29th percentile (213 ci)
Cylinders
median 6A · 33rd percentile (4)B · 10th percentile (3)
Forward Gears
median 10A · 34th percentile (6)B · 16th percentile (4)
Operating Weight
median 23,320 lbA · 48th percentile (20,380 lb)B · 43rd percentile (14,000 lb)
Length
median 146 inA · 52nd percentile (150 in)B · 33rd percentile (128 in)
A · HD10B · HD7Median Crawler Tractor