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Advance-RumelyModel A
Advance-Rumely 6A
Utility
- power
- Not recorded
- displacement
- 404 ci
- Cylinders
- 6
- Forward gears
- 6
Head to head · Utility
Advance-Rumely 6A vs Allis Chalmers HD7
Allis ChalmersModel B
Allis Chalmers HD7
Crawler
- power
- Not recorded
- displacement
- 213 ci
- Cylinders
- 3
- Forward gears
- 4
Advance-RumelyAdvance-Rumely 6A
vs
Allis ChalmersAllis Chalmers HD7
How they compare
Headline specs vs. the whole Utility
Engine Displacement
▲ 6A higher · +191 ci (+90%)6A404 ci
HD7213 ci
Median Utility Tractor183 ci
6A is in the 90th percentile; HD7 is in the 59th · 5,580 models
Cylinders
▲ 6A higher · +3 (+100%)6A6
HD73
Median Utility Tractor4
6A is in the 93rd percentile; HD7 is in the 23rd · 5,720 models
Forward Gears
▲ 6A higher · +2 (+50%)6A6
HD74
Median Utility Tractor12
6A is in the 11th percentile; HD7 is in the 4th · 4,941 models
Operating Weight
▲ HD7 higher · +7,630 lb (+120%)6A6,370 lb
HD714,000 lb
Median Utility Tractor5,303 lb
6A is in the 60th percentile; HD7 is in the 92nd · 5,107 models
6A (A)HD7 (B)Median Utility Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Advance-Rumely 6A | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Manufacturer | Advance-Rumely | Allis Chalmers | — |
| Model | 6A | HD7 | — |
| Category | Utility, Standard Tread | Crawler, Agricultural | — |
Engine
| Spec | Advance-Rumely 6A | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Manufacturer | Waukesha | General Motors | — |
| Model | Not recorded | Mar-71 | — |
| Rated RPM | 1,365RPM | 1,500RPM | ▲ HD7+135 RPM · +10% |
| Cylinders | 6 | 3 | ▲ 6A+3 · +100% |
| Displacement | 404ci | 213ci | ▲ 6A+191 ci · +90% |
| Bore | 4.3in | 4.3in | Same |
| Stroke | 4.8in | 5in | ▲ HD7+0.2 in · +4% |
Transmission
| Spec | Advance-Rumely 6A | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Type | Gear | Sliding Gear | — |
Dimensions & Weight
| Spec | Advance-Rumely 6A | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Length | 163in | 128in | ▲ 6A+35 in · +27% |
| Width | 70in | 81in | ▲ HD7+11 in · +16% |
| Height | 74in | 69in | ▲ 6A+5 in · +7% |
| Operating Weight | 6,370lb | 14,000lb | ▲ HD7+7,630 lb · +120% |
Hydraulics
| Spec | Advance-Rumely 6A | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Steering Type | Manual | Not recorded | — |
Chassis & Drive
| Spec | Advance-Rumely 6A | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | Crawler | — |
| Drive Type | 2WD | Track | — |
| Steering Type | Manual | Not recorded | — |
Electrical
| Spec | Advance-Rumely 6A | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Starter Type | Not recorded | Electric | — |
Capacities
| Spec | Advance-Rumely 6A | Allis Chalmers HD7 | Difference |
|---|---|---|---|
| Coolant | 9.5gal | 5.8gal | ▲ 6A+3.7 gal · +64% |
Category context
Both models against the field
Engine Displacement
median 183 ciA · 90th percentile (404 ci)B · 59th percentile (213 ci)
Cylinders
median 4A · 93rd percentile (6)B · 23rd percentile (3)
Forward Gears
median 12A · 11th percentile (6)B · 4th percentile (4)
Operating Weight
median 5,303 lbA · 60th percentile (6,370 lb)B · 92nd percentile (14,000 lb)
Length
median 137 inA · 81st percentile (163 in)B · 38th percentile (128 in)
A · 6AB · HD7Median Utility Tractor