Allis Chalmers 25-40 tractor specifications

1930 - 1936

1930 - 1936 Standard-tread tractor

Production

Production Manufacturer:Allis Chalmers
Type:Standard-tread tractor
Factory:West Allis, Wisconsin, USA
Total built:2,426

Allis Chalmers 25-40 Power

Allis Chalmers 25-40 Power Drawbar (claimed):27 hp
20.1 kW
Belt (claimed):42.6 hp
31.8 kW
Drawbar (tested):33.82 hp
25.2 kW
Belt (tested):47.00 hp
35.0 kW
power test details ...

1930 - 1936

Standard-tread tractor

Nebraska Tractor Test 193

Nebraska Tractor Test 193
Distillate 2-speed 2WD June 18 - 25, 1931 Link: Nebraska Tractor Test 193 file
Belt power (max):	47.00 hp 35.0 kW
Belt fuel use (max):	5.5 gal/hour 20.8 l/hour
Drawbar performance
Max power:	33.82 hp 25.2 kW
Gear 1 used for power test.
Max pull:	4,133 lbs 1874 kg
Gear 1 used for pull test.

Allis Chalmers 25-40 Engines

Allis Chalmers 25-40 Engines Allis Chalmers 8.4L 4-cyl gasoline Allis Chalmers 9.2L 4-cyl Fuel tank:30 gal
113.6 L
Aux. fuel:1 gal
3.8 L
Engine details ...

1930 - 1936

Standard-tread tractor

Engines overview

Engines overview
Allis Chalmers 8.4L 4-cyl gasoline
Allis Chalmers 9.2L 4-cyl

Engine Detail

Engine Detail
Allis Chalmers
gasoline
4-cylinder
liquid-cooled vertical I-head
Displacement:	510.5 ci 8.4 L
Bore/Stroke:	5.00x6.50 inches 127 x 165 mm
Rated RPM:	1000
Coolant capacity:	40 qts 37.9 L

Engine Detail

Engine Detail
Allis Chalmers
4-cylinder
Displacement:	563 ci 9.2 L
Bore/Stroke:	5.25x6.50 inches 133 x 165 mm

Mechanical

Mechanical Chassis:4x2 2WD
Steering:manual
Cab:Open operator station.
Transmission:2-speed gear
Transmission details ...

1930 - 1936

Standard-tread tractor

Transmission

Transmission
Type:	gear
Gears:	2 forward and 1 reverse

Speeds

Speeds

Dimensions & Tires

Dimensions & Tires Weight:7,000 lbs
3175 kg
Front tire:36x6
Rear tire:50x12
Full dimensions and tires ...

1930 - 1936

Standard-tread tractor

Allis Chalmers 25-40 Tires

Allis Chalmers 25-40 Tires
Ag front:	36x6 steel
Ag rear:	50x12 steel

Dimensions

Dimensions
Length:	152 inches 386 cm
Width:	76 inches 193 cm
Height:	65 inches 165 cm
Weight:	7,000 lbs 3175 kg

25-40 Serial Numbers

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
Final:25611

how to read serial numbers...