Allis ChalmersModel A
Allis Chalmers HD6
Crawler
- power
- Not recorded
- displacement
- 344 ci
- Cylinders
- 4
- Forward gears
- 5
Head to head · Crawler
Allis Chalmers HD6 vs McCormick-Deering T-40
Image not recorded
McCormick-DeeringModel B
McCormick-Deering T-40
Crawler
- power
- Not recorded
- displacement
- 298 ci
- Cylinders
- 4
- Forward gears
- 5
Allis ChalmersAllis Chalmers HD6
vs
McCormick-DeeringMcCormick-Deering T-40
How they compare
Headline specs vs. the whole Crawler
Engine Displacement
▲ HD6 higher · +46 ci (+15%)HD6344 ci
T-40298 ci
Median Crawler Tractor468 ci
HD6 is in the 43rd percentile; T-40 is in the 40th · 191 models
Cylinders
= Effectively tiedHD64
T-404
Median Crawler Tractor6
HD6 is in the 33rd percentile; T-40 is in the 33rd · 192 models
Forward Gears
= Effectively tiedHD65
T-405
Median Crawler Tractor10
HD6 is in the 25th percentile; T-40 is in the 25th · 179 models
Operating Weight
▲ HD6 higher · +775 lb (+6%)HD613,400 lb
T-4012,625 lb
Median Crawler Tractor23,320 lb
HD6 is in the 42nd percentile; T-40 is in the 41st · 173 models
HD6 (A)T-40 (B)Median Crawler Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD6 | McCormick-Deering T-40 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | McCormick-Deering | — |
| Model | HD6 | T-40 | — |
| Category | Crawler, Agricultural | Crawler | — |
Engine
| Spec | Allis Chalmers HD6 | McCormick-Deering T-40 | Difference |
|---|---|---|---|
| Manufacturer | Allis-Chalmers | International Harvester | — |
| Model | HD-344 | Not recorded | — |
| Rated RPM | 1,800RPM | 1,100RPM | ▲ HD6+700 RPM · +64% |
| Cylinders | 4 | 4 | Same |
| Displacement | 344ci | 298ci | ▲ HD6+46 ci · +15% |
| Bore | 4.4in | 4.8in | ▲ T-40+0.4 in · +9% |
| Stroke | 5.6in | 6.5in | ▲ T-40+0.9 in · +16% |
Transmission
| Spec | Allis Chalmers HD6 | McCormick-Deering T-40 | Difference |
|---|---|---|---|
| Type | Sliding Gear | Gear | — |
Dimensions & Weight
| Spec | Allis Chalmers HD6 | McCormick-Deering T-40 | Difference |
|---|---|---|---|
| Length | 127in | 141in | ▲ T-40+14 in · +11% |
| Width | 78.5in | 65in | ▲ HD6+13.5 in · +21% |
| Height | 66in | 65in | ▲ HD6+1 in · +2% |
| Operating Weight | 13,400lb | 12,625lb | ▲ HD6+775 lb · +6% |
Hitch & Towing
| Spec | Allis Chalmers HD6 | McCormick-Deering T-40 | Difference |
|---|---|---|---|
| Hitch Category | Not recorded | Category 3 | — |
Chassis & Drive
| Spec | Allis Chalmers HD6 | McCormick-Deering T-40 | Difference |
|---|---|---|---|
| Chassis Type | Crawler | Enclosed gear | — |
| Drive Type | Tracks | TraclTayer | — |
Electrical
| Spec | Allis Chalmers HD6 | McCormick-Deering T-40 | Difference |
|---|---|---|---|
| Starter Type | Electric | Not recorded | — |
Capacities
| Spec | Allis Chalmers HD6 | McCormick-Deering T-40 | Difference |
|---|---|---|---|
| Coolant | 3.8gal | 12gal | ▲ T-40+8.2 gal · +216% |
Operator Station
| Spec | Allis Chalmers HD6 | McCormick-Deering T-40 | Difference |
|---|---|---|---|
| Type | Open operator station | Not recorded | — |
Category context
Both models against the field
Engine Displacement
median 468 ciA · 43rd percentile (344 ci)B · 40th percentile (298 ci)
Cylinders
median 6A · 33rd percentile (4)B · 33rd percentile (4)
Forward Gears
median 10A · 25th percentile (5)B · 25th percentile (5)
Operating Weight
median 23,320 lbA · 42nd percentile (13,400 lb)B · 41st percentile (12,625 lb)
Length
median 146 inA · 30th percentile (127 in)B · 47th percentile (141 in)
A · HD6B · T-40Median Crawler Tractor