12 material differences

Tractor oneVALMET 6600-4 (6600E)1991–2000No measured PTO figureTractor twoVALMET 905-41984–1989No measured PTO figure

Which should you choose?

Read our verdict on the 6600-4 (6600E) and the 905-4 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

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

VALMET 6600-4 (6600E) and VALMET 905-4, field by field
Field	6600-4 (6600E)	905-4	Gap
Engine
Engine power, claimed claimed	103.5 hp	103.5 hp	—
Engine declared	VALMET 420 DS (420 DSE)	VALMET D 66 DS 9	differs
Displacement declared	4.40 L	6.60 L	+50% 905-4
Maximum torque declared	299 lb·ft · 405 N·m	291 lb·ft · 395 N·m	—
Transmission
Top speed declared	18.6–31.1 mph · 30–50 km/h	18.6 mph · 30 km/h	differs
Clutch declared	Pedal operated dry Fichtel & Sachs single plate clutch	Pedal-operated dry LuK single-plate clutch	differs
Hydraulics & hitch
Pump flow declared	21.2 gpm · 80.3 L/min	12.5 gpm · 47.5 L/min	+69% 6600-4 (6600E)
Pressure declared	2,031–2,248 psi · 140–155 bar	3,191 psi · 220 bar	differs
Rear PTO speeds declared	540/1000 rpm	540/1000 rpm	—
Weight & dimensions
Unladen weight declared	9,700 lb · 4,400 kg	9,105 lb · 4,130 kg	+7% 6600-4 (6600E)
Maximum permissible mass declared	16,535 lb · 7,500 kg	—	—
Wheelbase declared	91.6 in · 2,326 mm	100.8 in · 2,560 mm	+10% 905-4
Length declared	177.7 in · 4,514 mm	200.8 in · 5,100 mm	+13% 905-4
Width declared	78.1–101.8 in · 1,985–2,585 mm	84.3 in · 2,140 mm	differs
Height, over the cab declared	108.3 in · 2,750 mm	106.5 in · 2,705 mm	—
Ground clearance declared	19.1 in · 485 mm	18.7 in · 475 mm	—
Turning radius, braked declared	15.3 ft · 4.65 m	17.2 ft · 5.25 m	+13% 905-4
Fuel tank declared	174.4 qt · 165.0 L	190.2 qt · 180.0 L	+9% 905-4

Source

Source