Explore the specifications, hardware, and original references for the Allis-Chalmers B.
Allis-Chalmers B · Illustration
17hp
Engine estimate · from belt
2WD Only
Drive
1938–1957
Production years
Allis-Chalmers
Manufacturer
B / 01
At a glance
Overview
32of0oc
: SAE140
32of0oc
: SAE90
Production
Row-Crop tractor
Original price was $1,500 in 1957
The Allis-Chalmers model B was the result of research by Harry Merritt, Allis tractor division manager, into U.S. farm sizes in the early 1930s. At that time, most tractors were being used on farms larger than 100 acres, while more than half of all farms were under 100 acres. The Allis B was specifically designed to enter into the small-farm market, and early literature focused on the economy of using tractors instead of horses.
Manufacturer
Allis Chalmers
Factories
West Allis, Wisconsin, USA
Factories
Southampton, England
Total Built
120,783
Mechanical
Two-wheel drive
Differential mechanical contracting band brakes
Open operator station. Canvas cab optional.
Steering
manual
Hitch
Type
Allis Snap Coupler
Pto
Rear Pto
transmission
Rear Type
560
Serial Numbers
FAQ: How to read a serial number table.
1938
97
1939
11800
1940
33502
1941
49721
1942
56782
1943
64501
1944
65502
1945
70210
1946
72265
1946
1001 (IB)
1947
73370
1947
1003 (IB)
1948
80556
1948
1010 (IB)
1949
92295
1949
1282 (IB)
1950
102393
1950
1556 (IB)
1951
114527
1951
1879 (IB)
1951
4001 (EB)
1952
118674
1952
2219 (IB)
1952
6861 (EB)
1953
122310
1953
2570 (IB)
1953
9200 (EB)
1954
124201
1954
11120 (EB)
1955
124711
1956
126497
1957
127186
Final
127461
Belt Pulley
Diameter
8 inches20 cm
Width
5.5 inches13 cm
Rpm
1053
Electrical
Ground
positive
Charging System
generator
Charging Amps
12
Battery Volts
6
B / 02
Under the hood
Engine Detail (Option 1)
Allis-Chalmers CE
gasoline
4-cylinder
liquid-cooled
Final engine, used from 1943 on, SN 64501
Displacement
125.2 ci2.1 L
Bore Stroke
3.375x3.50 inches86 x 89 mm
Air Cleaner
oil bath
Compression Ratio
5.75:1
Rated Rpm
1500
Firing Order
1-2-4-3
Starter Volts
6
Oil Capacity
4 qts3.8 L
Sparkplug
Autolite AN 7
Sparkplug
AC 45
Sparkplug Gap
0.035 inches0.889 mm
Point Gap
0.020 inches0.508 mm
Intake Valve Clearance
0.010 inches (hot)0.254 mm
Exhaust Valve Clearance
0.010 inches (hot)0.254 mm
Fuel Type
gasoline
Cylinders
4
Cooling
liquid-cooled
Engine Detail (Option 2)
Allis-Chalmers BE
gasoline
4-cylinder
liquid-cooled vertical I-head
Second engine, used until 1943, SN 64500
Displacement
116.1 ci1.9 L
Bore Stroke
3.25x3.50 inches83 x 89 mm
Compression Ratio
4.92:1
Rated Rpm
1400
Firing Order
1-2-4-3
Coolant Capacity
8 qts7.6 L
Sparkplug Gap
0.040 inches1.016 mm
Point Gap
0.020 inches0.508 mm
Intake Valve Clearance
0.010 inches (hot)0.254 mm
Exhaust Valve Clearance
0.010 inches (hot)0.254 mm
Fuel Type
gasoline
Cylinders
4
Cooling
liquid-cooled vertical I-head
Oil Capacity
4 qts3.8 L
Engine Detail (Option 3)
Waukesha
gasoline
4-cylinder
liquid-cooled
Original engine, used in 1937 on the first 96 tractors built
