Allis Chalmers 25-40
General tractor information:
	Manufacturer:	Allis Chalmers
	Model:	25-40
	Type:	Farm/Agricultural tractor
	Years produced:	1930 - 1936
	Total built:	2,426
	Factory:	West Allis, Wisconsin, USA
	Original price:	-unknown-
Tractor power:
	Drawbar (rated):	27 hp [20.1 kW]
	Drawbar (max):	33.82 hp [25.2 kW]
	Belt:	42.6 hp [31.8 kW]
Engine:
	Manufacturer:	Allis Chalmers
	Fuel:	gasoline
	Type:	vertical I-head
	Cylinders:	4
	Bore/Stroke:	5.00x6.50 inches [127 x 165 mm]
	Displacement:	510.5 ci [8.4 L]
	Compression:	-unknown-
	Rated RPMs:	1000
	Cooling:	-unknown-
	Torque:	-unknown-
	Firing order:	-unknown-
Engine:
	Manufacturer:	Allis Chalmers
	Fuel:	-unknown-
	Cylinders:	4
	Bore/Stroke:	5.25x6.50 inches [133 x 165 mm]
	Displacement:	563 ci [9.2 L]
	Compression:	-unknown-
	Rated RPMs:	-unknown-
	Cooling:	-unknown-
	Torque:	-unknown-
	Firing order:	-unknown-
Transmission:
	Type:	-unknown-
	Forward:	2
	Reverse:	1
Mechanical:
	Chassis:	4x2 2WD
	Steering:	-unknown-
	Brakes:	-unknown-
Capacity:
	Fuel:	30 gal [113 L]
	Aux. fuel:	1 gal [3 L]
	Coolant:	40 qts [37.9 L]
Power Take-off (PTO):
Tires:
	Ag front:	36x6 steel
	Ag rear:	50x12 steel
Dimensions:
	Weight:	7,000 lbs [3175 kg]
	Wheelbase:	-unknown-
	Length:	152 inches [386 cm]
	Width:	76 inches [193 cm]
	Height:	65 inches [165 cm]
	Ground clearance:	-unknown-
Electrical:
Nebraska Tractor Test 183:
	Test Date:	June 1931
	Engine:	-unknown-
	Belt (max):	47 hp [35.0 kW]
	Drawbar (max):	33.82 hp [25.2 kW]
25-40 Serial Numbers:
Location: front of shifter on transmission case
1930: 24186
1931: 24843
1932: 24972
1933: 25024
1934: 25062
1935: 25309
1936: 25582
Allis Chalmers 25-40 links:
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Last updated on April 25, 2008