11 material differences · fewer than 12

Tractor oneInternational Harvester D-4321962–1966No measured PTO figureTractor twoJohn Deere 8201967–1975No measured PTO figure

Which should you choose?

Read our verdict on the D-432 and the 820 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

Field by field

11 material differences · 3 fields identical or within 5%, which is not counted as material

International Harvester D-432 and John Deere 820, field by field
FieldD-432820Gap
Engine
Engine power, claimed claimed31.5 hp31.5 hp—
Engine declaredINTERNATIONAL-HARVESTER DD-132John Deere M 4 3 L 9 or 3.152 DL-01differs
Displacement declared2.18 L2.47 L+13% 820
Maximum torque declared90 lb·ft · 122 N·m——
Transmission
Top speed declared12.4 mph · 20 km/h12.4–15.5 mph · 20–25 km/hdiffers
Clutch declaredpedal-operated dry single-disc clutchPedal operated dry Fichtel & Sachs single disc clutchdiffers
Hydraulics & hitch
Pump flow declared4.1 gpm · 15.5 L/min6.9 gpm · 26.0 L/min+68% 820
Pressure declared—1,944 psi · 134 bar—
Rear PTO speeds declared540 rpm540/1000 rpmdiffers
Weight & dimensions
Unladen weight declared3,294 lb · 1,494 kg4,740 lb · 2,150 kg+44% 820
Maximum permissible mass declared—7,716 lb · 3,500 kg—
Wheelbase declared74.0 in · 1,880 mm74.4 in · 1,890 mm—
Length declared115.4 in · 2,930 mm134.8 in · 3,425 mm+17% 820
Width declared64.6 in · 1,640 mm59.1–85.0 in · 1,500–2,160 mmdiffers
Ground clearance declared15.0 in · 380 mm15.7 in · 400 mm+5% 820
Turning radius, braked declared8.9 ft · 2.70 m9.2 ft · 2.80 m—
Fuel tank declared58.1 qt · 55.0 L66.0 qt · 62.5 L+14% 820

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-432 sources

Source
  • Source: Traktorenlexikon, “McCormick D-432”
  • Source: Traktorenlexikon, “McCormick DGD 4”

John Deere 820 sources

Source
  • Source: Traktorenlexikon, “John Deere 820”