
Allis ChalmersModel A
Allis Chalmers D21 Series II
Row Crop
- power
- 121 hp
- displacement
- 426 ci
- Cylinders
- 6
- Forward gears
- 8
Head to head · Row Crop

Row Crop

Row Crop
How they compare
D21 Series II is in the 40th percentile; TM135 is in the 38th · 1,206 models
D21 Series II is in the 72nd percentile; TM135 is in the 80th · 1,409 models
D21 Series II is in the 50th percentile; TM135 is in the 50th · 1,417 models
D21 Series II is in the 16th percentile; TM135 is in the 61st · 1,200 models
Full comparison
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | New Holland | — |
| Model | D21 Series II | TM135 | — |
| Category | Row Crop | Row Crop | Same |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | New Holland Diesel | — |
| Model | 3500 | Not recorded | — |
| Power Output | 121hp | 119hp | ▲ D21 Series II+2 hp · +2% |
| Rated RPM | 2,200RPM | 2,200RPM | Same |
| Cylinders | 6 | 6 | Same |
| Displacement | 426ci | 456ci | ▲ TM135+30 ci · +7% |
| Bore | 4.3in | 4.4in | ▲ TM135+0.1 in · +2% |
| Stroke | 5in | 5in | Same |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Type | Sliding gear with dry disc clutch | Selective gear fixed ratio with partial (6) range operator controlled powershift | — |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Length | 160in | 181in | ▲ TM135+21 in · +13% |
| Width | 91.3in | 79.2in | ▲ D21 Series II+12.1 in · +15% |
| Height | 106in | 113in | ▲ TM135+7 in · +7% |
| Operating Weight | 9,502lb | 10,472lb | ▲ TM135+970 lb · +10% |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| System Type | Not recorded | Closed-center load sensing (CCLS) | — |
| Pump Flow Capacity | Not recorded | 27.6gpm | — |
| Steering Type | Power | Power | Same |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 1,000rpm | Not recorded | — |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Front Tire Size | Not recorded | 16.9R28 | — |
| Rear Tire Size | Not recorded | 20.8R38 | — |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Three-point hitch | Same |
| Hitch Category | III/II | II | — |
| Hitch Position | Rear | Rear | Same |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Power | Power | Same |
| Brake Type | Band actuated disc | Not recorded | — |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Coolant | 7.8gal | 6.7gal | ▲ D21 Series II+1.1 gal · +16% |
| Spec | Allis Chalmers D21 Series II | New Holland TM135 | Difference |
|---|---|---|---|
| Type | Open | Cab | — |
Category context