David Brown 4600 Selectmatic vs SOMECA 500 (TD)

8 material differences · fewer than 12

Tractor one

1968–1971

No measured PTO figure

Tractor two

1971–1973

No measured PTO figure

Which should you choose?

Read our verdict on the 4600 Selectmatic and the 500 (TD) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

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

David Brown 4600 Selectmatic and SOMECA 500 (TD), field by field
Field	4600 Selectmatic	500 (TD)	Gap
Engine
Engine power, claimed claimed	50.0 hp	47.3 hp	+6% 4600 Selectmatic
Engine declared	—	FIAT-IVECO 8035.02.202	—
Displacement declared	—	2.59 L	—
Maximum torque declared	140 lb·ft · 190 N·m	118 lb·ft · 160 N·m	+19% 4600 Selectmatic
Transmission
Top speed declared	15.5 mph · 25 km/h	15.5 mph · 25 km/h	—
Clutch declared	Pedal-operated, dry and two-stage BORG & BECK double clutch	Pedal-operated two-stage dry FERODO double clutch	differs
Hydraulics & hitch
Pump flow declared	—	5.8 gpm · 21.8 L/min	—
Pressure declared	—	2,843 psi · 196 bar	—
Three-point lift at ends declared	1,799 lb · 816 kg	3,417 lb · 1,550 kg	+90% 500 (TD)
Rear PTO speeds declared	540/1000 rpm	540 rpm	differs
Weight & dimensions
Unladen weight declared	3,990 lb · 1,810 kg	4,023 lb · 1,825 kg	—
Wheelbase declared	79.8 in · 2,026 mm	75.6 in · 1,920 mm	+6% 4600 Selectmatic
Length declared	121.5 in · 3,086 mm	119.1 in · 3,025 mm	—
Width declared	64.0 in · 1,626 mm	62.4 in · 1,585 mm	—
Height declared	54.0 in · 1,372 mm	67.9 in · 1,725 mm	+26% 500 (TD)
Ground clearance declared	19.8 in · 502 mm	15.0 in · 380 mm	+32% 4600 Selectmatic
Turning radius, braked declared	10.3 ft · 3.15 m	9.7 ft · 2.95 m	+7% 4600 Selectmatic
Fuel tank declared	55.3 qt · 52.3 L	57.1 qt · 54.0 L	—

Source

Source