Image not recorded
Allis ChalmersModel A
Allis Chalmers HD14
Crawler
- power
- Not recorded
- displacement
- 426 ci
- Cylinders
- 6
- Forward gears
- 6
Head to head · Crawler
Allis Chalmers HD14 vs Challenger 55
ChallengerModel B
Challenger 55
Agricultural
- power
- Not recorded
- displacement
- 442 ci
- Cylinders
- 6
- Forward gears
- 16
Allis ChalmersAllis Chalmers HD14
vs
ChallengerChallenger 55
How they compare
Headline specs vs. the whole Crawler
Engine Displacement
▲ 55 higher · +16 ci (+4%)HD14426 ci
55442 ci
Median Crawler Tractor468 ci
HD14 is in the 48th percentile; 55 is in the 49th · 191 models
Cylinders
= Effectively tiedHD146
556
Median Crawler Tractor6
HD14 is in the 50th percentile; 55 is in the 50th · 192 models
Forward Gears
▲ 55 higher · +10 (+167%)HD146
5516
Median Crawler Tractor10
HD14 is in the 34th percentile; 55 is in the 69th · 179 models
Operating Weight
▲ HD14 higher · +2,750 lb (+11%)HD1428,750 lb
5526,000 lb
Median Crawler Tractor23,320 lb
HD14 is in the 65th percentile; 55 is in the 58th · 173 models
HD14 (A)55 (B)Median Crawler Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD14 | Challenger 55 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Challenger | — |
| Model | HD14 | 55 | — |
| Category | Crawler | Agricultural | — |
Engine
| Spec | Allis Chalmers HD14 | Challenger 55 | Difference |
|---|---|---|---|
| Manufacturer | General Motors | Caterpillar | — |
| Model | Jun-71 | 3126 | — |
| Rated RPM | 1,500RPM | 2,100RPM | ▲ 55+600 RPM · +40% |
| Cylinders | 6 | 6 | Same |
| Displacement | 426ci | 442ci | ▲ 55+16 ci · +4% |
| Bore | 4.3in | 4.3in | Same |
| Stroke | 5in | 5in | Same |
Transmission
| Spec | Allis Chalmers HD14 | Challenger 55 | Difference |
|---|---|---|---|
| Type | Gear-driven | Full Power Shift | — |
Dimensions & Weight
| Spec | Allis Chalmers HD14 | Challenger 55 | Difference |
|---|---|---|---|
| Length | 165in | 211in | ▲ 55+46 in · +28% |
| Width | 92in | Not recorded | — |
| Height | 80in | 125in | ▲ 55+45 in · +56% |
| Operating Weight | 28,750lb | 26,000lb | ▲ HD14+2,750 lb · +11% |
Hydraulics
| Spec | Allis Chalmers HD14 | Challenger 55 | Difference |
|---|---|---|---|
| System Type | Not recorded | Variable-Displacement Load-Sensing Pressure-Compensated | — |
| Steering Type | Not recorded | Differential Power | — |
Hitch & Towing
| Spec | Allis Chalmers HD14 | Challenger 55 | Difference |
|---|---|---|---|
| Hitch Type | Not recorded | Three-Point Hitch | — |
| Hitch Category | Not recorded | III | — |
| Hitch Position | Not recorded | Rear | — |
Chassis & Drive
| Spec | Allis Chalmers HD14 | Challenger 55 | Difference |
|---|---|---|---|
| Chassis Type | Crawler | Not recorded | — |
| Drive Type | Track | Not recorded | — |
| Steering Type | Not recorded | Differential Power | — |
Electrical
| Spec | Allis Chalmers HD14 | Challenger 55 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers HD14 | Challenger 55 | Difference |
|---|---|---|---|
| Coolant | 12gal | 8.6gal | ▲ HD14+3.4 gal · +40% |
Operator Station
| Spec | Allis Chalmers HD14 | Challenger 55 | Difference |
|---|---|---|---|
| Type | Not recorded | Cab | — |
Category context
Both models against the field
Engine Displacement
median 468 ciA · 48th percentile (426 ci)B · 49th percentile (442 ci)
Cylinders
median 6A · 50th percentile (6)B · 50th percentile (6)
Forward Gears
median 10A · 34th percentile (6)B · 69th percentile (16)
Operating Weight
median 23,320 lbA · 65th percentile (28,750 lb)B · 58th percentile (26,000 lb)
Length
median 146 inA · 57th percentile (165 in)B · 77th percentile (211 in)
A · HD14B · 55Median Crawler Tractor