Allis ChalmersModel A
Allis Chalmers HD21
Agricultural
- power
- 225 hp
- displacement
- 844 ci
- Cylinders
- 6
- Forward gears
- 2
Head to head · Agricultural
Allis Chalmers HD21 vs Valtra S230
ValtraModel B
Valtra S230
Row Crop
- power
- 227 hp
- displacement
- 513 ci
- Cylinders
- 6
- Forward gears
- 40
Allis ChalmersAllis Chalmers HD21
vs
ValtraValtra S230
How they compare
Headline specs vs. the whole Agricultural
Engine Power
▲ S230 higher · +2 hp (<1%)HD21225 hp
S230227 hp
Median Agricultural Tractor110 hp
HD21 is in the 84th percentile; S230 is in the 85th · 1,028 models
Engine Displacement
▲ HD21 higher · +331 ci (+65%)HD21844 ci
S230513 ci
Median Agricultural Tractor336 ci
HD21 is in the 96th percentile; S230 is in the 87th · 1,083 models
Cylinders
= Effectively tiedHD216
S2306
Median Agricultural Tractor5.5
HD21 is in the 74th percentile; S230 is in the 74th · 1,130 models
Forward Gears
▲ S230 higher · +38 (+1900%)HD212
S23040
Median Agricultural Tractor16
HD21 is in the 1st percentile; S230 is in the 96th · 972 models
HD21 (A)S230 (B)Median Agricultural Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD21 | Valtra S230 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Valtra | — |
| Model | HD21 | S230 | — |
| Category | Agricultural | Row Crop | — |
Engine
| Spec | Allis Chalmers HD21 | Valtra S230 | Difference |
|---|---|---|---|
| Manufacturer | Allis-Chalmers | SisuDiesel | — |
| Model | Not recorded | 645 ESBAE | — |
| Power Output | 225hp | 227hp | ▲ S230+2 hp · <1% |
| Rated RPM | 1,800RPM | 2,200RPM | ▲ S230+400 RPM · +22% |
| Cylinders | 6 | 6 | Same |
| Displacement | 844ci | 513ci | ▲ HD21+331 ci · +65% |
| Bore | 5.3in | 4.4in | ▲ HD21+0.9 in · +20% |
| Stroke | 6.5in | 5.7in | ▲ HD21+0.8 in · +14% |
Transmission
| Spec | Allis Chalmers HD21 | Valtra S230 | Difference |
|---|---|---|---|
| Type | Torque Converter | Power shift | — |
Dimensions & Weight
| Spec | Allis Chalmers HD21 | Valtra S230 | Difference |
|---|---|---|---|
| Length | 198in | 201in | ▲ S230+3 in · +2% |
| Width | Not recorded | 98.4in | — |
| Height | 99in | 134in | ▲ S230+35 in · +35% |
| Operating Weight | 45,500lb | 19,401lb | ▲ HD21+26,099 lb · +135% |
Hydraulics
| Spec | Allis Chalmers HD21 | Valtra S230 | Difference |
|---|---|---|---|
| System Type | Not recorded | Closed Center | — |
| Steering Type | Not recorded | Power | — |
Chassis & Drive
| Spec | Allis Chalmers HD21 | Valtra S230 | Difference |
|---|---|---|---|
| Chassis Type | Not recorded | 4x4 MFWD 4WD | — |
| Drive Type | Not recorded | 4WD | — |
| Steering Type | Not recorded | Power | — |
Electrical
| Spec | Allis Chalmers HD21 | Valtra S230 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | Allis Chalmers HD21 | Valtra S230 | Difference |
|---|---|---|---|
| Coolant | 20gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers HD21 | Valtra S230 | Difference |
|---|---|---|---|
| Type | Not recorded | Cab | — |
Category context
Both models against the field
Engine Power
median 110 hpA · 84th percentile (225 hp)B · 85th percentile (227 hp)
Engine Displacement
median 336 ciA · 96th percentile (844 ci)B · 87th percentile (513 ci)
Cylinders
median 5.5A · 74th percentile (6)B · 74th percentile (6)
Forward Gears
median 16A · 1st percentile (2)B · 96th percentile (40)
Operating Weight
median 10,914 lbA · 99th percentile (45,500 lb)B · 82nd percentile (19,401 lb)
A · HD21B · S230Median Agricultural Tractor