9 material differences · fewer than 12
Tractor oneInternational Harvester D-3261962–1966No measured PTO figureTractor twoNuffield 4/25 (425)1968–1969No measured PTO figure
Which should you choose?
Read our verdict on the D-326 and the 4/25 (425) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
9 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | D-326 | 4/25 (425) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 25.6 hp | 24.9 hp | — |
| Engine declared | INTERNATIONAL-HARVESTER DD-111 | BMC B 15 T | differs |
| Displacement declared | 1.83 L | — | — |
| Maximum torque declared | 73 lb·ft · 99 N·m | 51 lb·ft · 69 N·m | +43% D-326 |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 15.5 mph · 25 km/h | +25% 4/25 (425) |
| Clutch declared | Pedal-operated dry single-plate clutch | Pedal-operated dry BORG & BECK single-plate clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | — | 3.8 gpm · 14.5 L/min | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 3,450 lb · 1,565 kg | 2,220–2,328 lb · 1,007–1,056 kg | differs |
| Wheelbase declared | 70.1 in · 1,780 mm | 67.0 in · 1,702 mm | — |
| Length declared | 108.3 in · 2,750 mm | 109.4 in · 2,780 mm | — |
| Width declared | 64.6 in · 1,640 mm | 60.5 in · 1,537 mm | +7% D-326 |
| Ground clearance declared | 15.1 in · 383 mm | 12.8 in · 324 mm | +18% D-326 |
| Turning radius, braked declared | 8.4 ft · 2.55 m | 9.4 ft · 2.87 m | +13% 4/25 (425) |
| Fuel tank declared | 31.7 qt · 30.0 L | 33.6 qt · 31.8 L | +6% 4/25 (425) |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
International Harvester D-326 sources
- Source: Traktorenlexikon, “McCormick D-326 Standard”
- Source: Traktorenlexikon, “McCormick D-324 Farmall”
Nuffield 4/25 (425) sources
- Source: Traktorenlexikon, “Nuffield 4/25 (1968-1969)”