5 material differences · fewer than 12

Tractor oneFiat 680 (DT)1978–1984No measured PTO figureTractor twoSOMECA 680 (TD)1978–1983No measured PTO figure

Which should you choose?

We will not advise between these two machines, because their unladen weight differs by more than 25% (32%). 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

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

Fiat 680 (DT) and SOMECA 680 (TD), field by field
Field	680 (DT)	680 (TD)	Gap
Engine
Engine power, claimed claimed	67 hp	67 hp	—
Engine declared	FIAT-IVECO 8045.02.270 (370)	FIAT-IVECO 8045.02.270 (370)	—
Displacement declared	3.46 L	3.46 L	—
Transmission
Top speed declared	15.5–18.6 mph · 25–30 km/h	15.5 mph · 25 km/h	differs
Clutch declared	Dry FERODO or LuK double clutch with separate PTO control	Dry FERODO double clutch	differs
Hydraulics & hitch
Pump flow declared	6.8 gpm · 25.8 L/min	6.8 gpm · 25.8 L/min	—
Pressure declared	2,843 psi · 196 bar	2,843 psi · 196 bar	—
Rear PTO speeds declared	540/1000 rpm	540/1000 rpm	—
Weight & dimensions
Unladen weight declared	7,275 lb · 3,300 kg	5,512 lb · 2,500 kg	+32% 680 (DT)
Wheelbase declared	89.2 in · 2,265 mm	89.2 in · 2,265 mm	—
Length declared	138.1 in · 3,507 mm	154.3 in · 3,920 mm	+12% 680 (TD)
Width declared	68.9 in · 1,750 mm	80.3 in · 2,040 mm	+17% 680 (TD)
Height, over the cab declared	100.6 in · 2,555 mm	104.1 in · 2,645 mm	—
Ground clearance declared	20.1 in · 511 mm	20.0 in · 508 mm	—
Turning radius, braked declared	11.2 ft · 3.40 m	11.2 ft · 3.40 m	—
Fuel tank declared	84.5 qt · 80.0 L	84.5 qt · 80.0 L	—

Fiat 680 (DT) sources

Source

Source: Traktorenlexikon, “Fiat 680 /680 DT”

SOMECA 680 (TD) sources