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 Q225
Image not recorded
ValtraModel B
Valtra Q225
Row Crop
- power
- 227 hp
- displacement
- 450 ci
- Cylinders
- 6
- Forward gears
- Not recorded
Allis ChalmersAllis Chalmers HD21
vs
ValtraValtra Q225
How they compare
Headline specs vs. the whole Agricultural
Engine Power
▲ Q225 higher · +2 hp (<1%)HD21225 hp
Q225227 hp
Median Agricultural Tractor110 hp
HD21 is in the 84th percentile; Q225 is in the 85th · 1,028 models
Engine Displacement
▲ HD21 higher · +394 ci (+88%)HD21844 ci
Q225450 ci
Median Agricultural Tractor336 ci
HD21 is in the 96th percentile; Q225 is in the 80th · 1,083 models
Cylinders
= Effectively tiedHD216
Q2256
Median Agricultural Tractor5.5
HD21 is in the 74th percentile; Q225 is in the 74th · 1,130 models
Operating Weight
▲ HD21 higher · +25,217 lb (+124%)HD2145,500 lb
Q22520,283 lb
Median Agricultural Tractor10,914 lb
HD21 is in the 99th percentile; Q225 is in the 85th · 971 models
HD21 (A)Q225 (B)Median Agricultural Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD21 | Valtra Q225 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Valtra | — |
| Model | HD21 | Q225 | — |
| Category | Agricultural | Row Crop | — |
Engine
| Spec | Allis Chalmers HD21 | Valtra Q225 | Difference |
|---|---|---|---|
| Manufacturer | Allis-Chalmers | AGCO Power | — |
| Model | Not recorded | 74 LFTN-D5 | — |
| Power Output | 225hp | 227hp | ▲ Q225+2 hp · <1% |
| Rated RPM | 1,800RPM | 1,950RPM | ▲ Q225+150 RPM · +8% |
| Cylinders | 6 | 6 | Same |
| Displacement | 844ci | 450ci | ▲ HD21+394 ci · +88% |
| Bore | 5.3in | 4.3in | ▲ HD21+1 in · +23% |
| Stroke | 6.5in | 5.3in | ▲ HD21+1.2 in · +23% |
Transmission
| Spec | Allis Chalmers HD21 | Valtra Q225 | Difference |
|---|---|---|---|
| Type | Torque Converter | continuously-variable transmission | — |
Dimensions & Weight
| Spec | Allis Chalmers HD21 | Valtra Q225 | Difference |
|---|---|---|---|
| Length | 198in | 219in | ▲ Q225+21 in · +11% |
| Width | Not recorded | 100in | — |
| Height | 99in | 131in | ▲ Q225+32 in · +32% |
| Operating Weight | 45,500lb | 20,283lb | ▲ HD21+25,217 lb · +124% |
Hydraulics
| Spec | Allis Chalmers HD21 | Valtra Q225 | Difference |
|---|---|---|---|
| System Type | Not recorded | closed-center load sensing | — |
Electrical
| Spec | Allis Chalmers HD21 | Valtra Q225 | Difference |
|---|---|---|---|
| Starter Type | Electric | electric | Same |
Emissions
| Spec | Allis Chalmers HD21 | Valtra Q225 | Difference |
|---|---|---|---|
| Standard | Not recorded | Stage V | — |
Capacities
| Spec | Allis Chalmers HD21 | Valtra Q225 | Difference |
|---|---|---|---|
| Coolant | 20gal | Not recorded | — |
Operator Station
| Spec | Allis Chalmers HD21 | Valtra Q225 | 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 · 80th percentile (450 ci)
Cylinders
median 5.5A · 74th percentile (6)B · 74th percentile (6)
Operating Weight
median 10,914 lbA · 99th percentile (45,500 lb)B · 85th percentile (20,283 lb)
Length
median 173 inA · 77th percentile (198 in)B · 89th percentile (219 in)
A · HD21B · Q225Median Agricultural Tractor