David Brown 990 Selectmatic vs International Harvester 475

12 material differences

Tractor one

1965–1979

No measured PTO figure

Tractor two

1974–1975

No measured PTO figure

Which should you choose?

Read our verdict on the 990 Selectmatic and the 475 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

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

David Brown 990 Selectmatic and International Harvester 475, field by field
Field	990 Selectmatic	475	Gap
Engine
Engine power, claimed claimed	—	58.2 hp	—
Engine declared	DAVID BROWN AD 4/47 or AD 4/49 A (B)	Perkins A 4.212	differs
Displacement declared	—	3.47 L	—
Maximum torque declared	140 lb·ft · 190 N·m	131 lb·ft · 178 N·m	+7% 990 Selectmatic
Transmission
Top speed declared	15.5 mph · 25 km/h	12.4–18.6 mph · 20–30 km/h	differs
Clutch declared	pedal-operated dry Borg & Beck single-disc clutch	Pedal-operated dry Laycock single-plate clutch	differs
Hydraulics & hitch
Pump flow declared	7.3 gpm · 27.5 L/min	10.1 gpm · 38.2 L/min	+39% 475
Three-point lift at ends declared	2,000 lb · 907 kg	3,911 lb · 1,774 kg	+96% 475
Rear PTO speeds declared	540 rpm	540/1000 rpm	differs
Weight & dimensions
Unladen weight declared	5,688 lb · 2,580 kg	5,655 lb · 2,565 kg	—
Wheelbase declared	78.7 in · 2,000 mm	84.5 in · 2,146 mm	+7% 475
Length declared	126.0 in · 3,200 mm	135.0 in · 3,430 mm	+7% 475
Width declared	67.0 in · 1,702 mm	64.2 in · 1,630 mm	—
Height declared	59.5 in · 1,511 mm	59.4 in · 1,510 mm	—
Ground clearance declared	21.4 in · 543 mm	16.0 in · 406 mm	+34% 990 Selectmatic
Turning radius, braked declared	10.3 ft · 3.14 m	11.1 ft · 3.37 m	+7% 475
Fuel tank declared	64.9 qt · 61.4 L	81.7 qt · 77.3 L	+26% 475

Source

Source