
International HarvesterModel A
International Harvester 644
Utility
- power
- 60 hp
- displacement
- 206 ci
- Cylinders
- 4
- Forward gears
- 8
Head to head · Utility

Utility
Utility
How they compare
644 is in the 54th percentile; Hydro 84 is in the 52nd · 5,383 models
644 is in the 57th percentile; Hydro 84 is in the 69th · 5,580 models
644 is in the 50th percentile; Hydro 84 is in the 50th · 5,720 models
644 is in the 60th percentile; Hydro 84 is in the 54th · 5,107 models
Full comparison
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| Manufacturer | International Harvester | International Harvester | Same |
| Model | 644 | Hydro 84 | — |
| Category | Utility | Utility | Same |
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| Manufacturer | International Harvester | International Harvester | Same |
| Model | D-206 | D246 | — |
| Power Output | 60hp | 58.7hp | ▲ 644+1.3 hp · +2% |
| Rated RPM | 2,150RPM | 2,400RPM | ▲ Hydro 84+250 RPM · +12% |
| Cylinders | 4 | 4 | Same |
| Displacement | 206ci | 246ci | ▲ Hydro 84+40 ci · +19% |
| Bore | 3.9in | 3.9in | Same |
| Stroke | 4.4in | 5.1in | ▲ Hydro 84+0.7 in · +16% |
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| Type | Not recorded | Hydrostatic | — |
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| Length | 149in | 142in | ▲ 644+7 in · +5% |
| Width | Not recorded | 74in | — |
| Height | 98in | 63in | ▲ 644+35 in · +56% |
| Operating Weight | 6,350lb | 5,720lb | ▲ 644+630 lb · +11% |
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| System Type | Not recorded | Open center | — |
| Steering Type | Not recorded | Power | — |
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| Type | Not recorded | Independent with hydraulic wet disc clutch | — |
| Speed 1 | Not recorded | 540rpm | — |
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| Hitch Type | Not recorded | Three-point hitch | — |
| Hitch Category | II | II | Same |
| Hitch Position | Not recorded | Rear | — |
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| Chassis Type | Not recorded | 4x2 2WD | — |
| Drive Type | Not recorded | 2WD | — |
| Steering Type | Not recorded | Power | — |
| Brake Type | Not recorded | Independent hydraulic wet disc | — |
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| Coolant | Not recorded | 3.6gal | — |
| Spec | International Harvester 644 | International Harvester Hydro 84 | Difference |
|---|---|---|---|
| Type | Not recorded | Open operator station | — |
Category context