9 material differences · fewer than 12

Tractor oneInternational Harvester D-4301956–1962No measured PTO figureTractor twoOLIVER 5001961–1963No measured PTO figure

Which should you choose?

Read our verdict on the D-430 and the 500 → 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 · 5 fields identical or within 5%, which is not counted as material

International Harvester D-430 and OLIVER 500, field by field
FieldD-430500Gap
Engine
Engine power, claimed claimed29.6 hp34.5 hp+16% 500
Engine declaredINTERNATIONAL-HARVESTER DD-132DAVID BROWN AD 4/36 A-106differs
Displacement declared2.18 L2.52 L+16% 500
Maximum torque declared90 lb·ft · 122 N·m110 lb·ft · 149 N·m+22% 500
Transmission
Top speed declared12.4 mph · 20 km/h15.5 mph · 25 km/h+25% 500
Clutch declaredFoot-operated dry single-plate clutch from Fichtel & SachsPedal-operated dry single-plate clutchdiffers
Hydraulics & hitch
Pump flow declared4.1 gpm · 15.5 L/min6.0 gpm · 22.7 L/min+46% 500
Rear PTO speeds declared540 rpm540 rpm / 1000 rpmdiffers
Weight & dimensions
Unladen weight declared3,660 lb · 1,660 kg3,704 lb · 1,680 kg—
Maximum permissible mass declared4,409 lb · 2,000 kg——
Wheelbase declared74.0 in · 1,880 mm75.2 in · 1,911 mm—
Length declared115.4 in · 2,930 mm113.6 in · 2,885 mm—
Width declared64.6 in · 1,640 mm62.8 in · 1,594 mm—
Ground clearance declared15.2 in · 385 mm15.4 in · 390 mm—
Turning radius, braked declared9.2 ft · 2.80 m7.9 ft · 2.41 m+16% D-430
Fuel tank declared31.7–58.1 qt · 30.0–55.0 L42.1 qt · 39.8 Ldiffers

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-430 sources

Source
  • Source: Traktorenlexikon, “McCormick D-430 Farmall”
  • Source: Traktorenlexikon, “McCormick DGD 4”

OLIVER 500 sources

Source
  • Source: Traktorenlexikon, “Oliver 500”
  • Source: Traktorenlexikon, “David Brown 850”