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Allis ChalmersModel A
Allis Chalmers HD9
Industrial
- power
- Not recorded
- displacement
- 284 ci
- Cylinders
- 4
- Forward gears
- 6
Head to head · Industrial
Allis Chalmers HD9 vs Claas Challenger 55
ClaasModel B
Claas Challenger 55
Crawler
- power
- Not recorded
- displacement
- 442 ci
- Cylinders
- 6
- Forward gears
- 16
Allis ChalmersAllis Chalmers HD9
vs
ClaasClaas Challenger 55
How they compare
Headline specs vs. the whole Industrial
Engine Displacement
▲ Challenger 55 higher · +158 ci (+56%)HD9284 ci
Challenger 55442 ci
Median Industrial Tractor284 ci
HD9 is in the 50th percentile; Challenger 55 is in the 66th · 53 models
Cylinders
▲ Challenger 55 higher · +2 (+50%)HD94
Challenger 556
Median Industrial Tractor4
HD9 is in the 50th percentile; Challenger 55 is in the 88th · 55 models
Forward Gears
▲ Challenger 55 higher · +10 (+167%)HD96
Challenger 5516
Median Industrial Tractor5
HD9 is in the 65th percentile; Challenger 55 is in the 97th · 43 models
Operating Weight
▲ Challenger 55 higher · +7,200 lb (+38%)HD918,800 lb
Challenger 5526,000 lb
Median Industrial Tractor9,127 lb
HD9 is in the 70th percentile; Challenger 55 is in the 87th · 49 models
HD9 (A)Challenger 55 (B)Median Industrial Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD9 | Claas Challenger 55 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Claas | — |
| Model | HD9 | Challenger 55 | — |
| Category | Industrial | Crawler, Agricultural | — |
Engine
| Spec | Allis Chalmers HD9 | Claas Challenger 55 | Difference |
|---|---|---|---|
| Manufacturer | General Motors | Caterpillar | — |
| Model | Not recorded | 3126 | — |
| Rated RPM | 1,600RPM | 2,100RPM | ▲ Challenger 55+500 RPM · +31% |
| Cylinders | 4 | 6 | ▲ Challenger 55+2 · +50% |
| Displacement | 284ci | 442ci | ▲ Challenger 55+158 ci · +56% |
| Bore | 4.3in | 4.3in | Same |
| Stroke | 5in | 5in | Same |
Transmission
| Spec | Allis Chalmers HD9 | Claas Challenger 55 | Difference |
|---|---|---|---|
| Type | Gear | Full Power Shift | — |
Dimensions & Weight
| Spec | Allis Chalmers HD9 | Claas Challenger 55 | Difference |
|---|---|---|---|
| Length | 150in | 211in | ▲ Challenger 55+61 in · +41% |
| Width | 95.1in | 91in | ▲ HD9+4.1 in · +5% |
| Height | 73.1in | 125in | ▲ Challenger 55+51.9 in · +71% |
| Operating Weight | 18,800lb | 26,000lb | ▲ Challenger 55+7,200 lb · +38% |
Hydraulics
| Spec | Allis Chalmers HD9 | Claas Challenger 55 | Difference |
|---|---|---|---|
| System Type | Not recorded | Variable-displacement Load-sensing Pressure-compensated | — |
| Steering Type | Not recorded | Differential Power | — |
Hitch & Towing
| Spec | Allis Chalmers HD9 | Claas Challenger 55 | Difference |
|---|---|---|---|
| Hitch Category | Not recorded | III/II | — |
| Hitch Position | Not recorded | Rear | — |
Chassis & Drive
| Spec | Allis Chalmers HD9 | Claas Challenger 55 | Difference |
|---|---|---|---|
| Chassis Type | Not recorded | Crawler | — |
| Steering Type | Not recorded | Differential Power | — |
Electrical
| Spec | Allis Chalmers HD9 | Claas Challenger 55 | Difference |
|---|---|---|---|
| Battery Voltage | Not recorded | 12V | — |
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers HD9 | Claas Challenger 55 | Difference |
|---|---|---|---|
| Coolant | 7.3gal | 8.6gal | ▲ Challenger 55+1.3 gal · +18% |
Operator Station
| Spec | Allis Chalmers HD9 | Claas Challenger 55 | Difference |
|---|---|---|---|
| Type | Not recorded | Cab | — |
Category context
Both models against the field
Engine Displacement
median 284 ciA · 50th percentile (284 ci)B · 66th percentile (442 ci)
Cylinders
median 4A · 50th percentile (4)B · 88th percentile (6)
Forward Gears
median 5A · 65th percentile (6)B · 97th percentile (16)
Operating Weight
median 9,127 lbA · 70th percentile (18,800 lb)B · 87th percentile (26,000 lb)
Length
median 125 inA · 63rd percentile (150 in)B · 94th percentile (211 in)
A · HD9B · Challenger 55Median Industrial Tractor