6 material differences · fewer than 12

Tractor oneALLIS-CHALMERS Modell-C1940–1950No measured PTO figureTractor twoHürlimann 4 T 18Z1931–1932No measured PTO figure

Which should you choose?

We will not advise between these two machines, because their unladen weight differs by more than 25% (50%); they were not built in overlapping years (1940–1950; 1931–1932). 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

6 material differences · 1 fields identical or within 5%, which is not counted as material

ALLIS-CHALMERS Modell-C and Hürlimann 4 T 18Z, field by field
Field	Modell-C	4 T 18Z	Gap
Engine
Engine power, claimed claimed	18.2 hp	17.7 hp	—
Engine declared	—	Zürcher CR-2	—
Displacement declared	—	1.85 L	—
Transmission
Top speed declared	7.5 mph · 12 km/h	9.3 mph · 15.0 km/h	+25% 4 T 18Z
Clutch declared	Foot-operated spring-loaded dry Rockford single-plate clutch	—	—
Hydraulics & hitch
Rear PTO speeds declared	560 rpm	900	differs
Weight & dimensions
Unladen weight declared	2,200 lb · 998 kg	3,307 lb · 1,500 kg	+50% 4 T 18Z
Wheelbase declared	77.0 in · 1,956 mm	70.9 in · 1,800 mm	+9% Modell-C
Length declared	110.2 in · 2,800 mm	104.7 in · 2,660 mm	+5% Modell-C
Width declared	68.5 in · 1,740 mm	59.4 in · 1,510 mm	+15% Modell-C
Ground clearance declared	23.0 in · 584 mm	—	—
Fuel tank declared	57.7 qt · 54.6 L	—	—

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.

ALLIS-CHALMERS Modell-C sources

Source

Source: Traktorenlexikon, “Allis-Chalmers Modell C”

Hürlimann 4 T 18Z sources