10 material differences · fewer than 12

Tractor oneIMR-RAKOVICA R-60from 1967No measured PTO figureTractor twoInternational Harvester 5531972–1974No measured PTO figure

Which should you choose?

We will not advise between these two machines, because the drive differs (2WD; Two-wheel or four-wheel drive); they were not built in overlapping years (1967–1967; 1972–1974). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.

Field by field

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

IMR-RAKOVICA R-60 and International Harvester 553, field by field
FieldR-60553Gap
Engine
Engine power, claimed claimed49.3 hp51.1 hp—
Engine declaredIMR-PERKINS M-34/TIHC D-179differs
Displacement declared3.34 L2.93 L+14% R-60
Maximum torque declared138 lb·ft · 187 N·m142 lb·ft · 192 N·m—
Transmission
Top speed declared18.6 mph · 30 km/h17.4 mph · 28 km/h+7% R-60
Clutch declaredPedal-operated, two-stage dry IKARUS double clutchSingle-plate dry clutchdiffers
Hydraulics & hitch
Pump flow declared9.5 gpm · 36.1 L/min6.8 gpm · 25.6 L/min+41% R-60
Rear PTO speeds declared540 rpm1000 rpmdiffers
Weight & dimensions
Unladen weight declared4,784 lb · 2,170 kg5,765 lb · 2,615 kg+21% 553
Wheelbase declared80.7 in · 2,050 mm78.7 in · 2,000 mm—
Length declared149.6 in · 3,800 mm135.0 in · 3,430 mm+11% R-60
Width declared73.2 in · 1,860 mm70.4 in · 1,788 mm—
Ground clearance declared17.7 in · 450 mm17.5 in · 445 mm—
Turning radius, braked declared11.2 ft · 3.41 m12.0 ft · 3.65 m+7% 553
Fuel tank declared63.4 qt · 60.0 L74.0 qt · 70 L+17% 553

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.

IMR-RAKOVICA R-60 sources

Source
  • Source: Traktorenlexikon, “Rakovica R 60”
  • Source: Traktorenlexikon, “IMT 558”

International Harvester 553 sources

Source
  • Source: Traktorenlexikon, “IHC 553”