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Farmall B

The Farmall B is a tractor produced by Farmall. It is equipped with a 113.1 ci 1.9 L engine. Transmission: 4 forward and 1 reverse. Operating weight: 2400 lbs 1088 kg.

Fuel & Capacities
Kerosene
Transmission
4 forward and 1 reverse
Operating Weight
2400 lbs 1088 kg

Overview

Farmall B tractor photo
1939 - 1947 Row-Crop tractor
Production
Manufacturer
Farmall (a part of International Harvester)
Row-Crop tractor
Factories
Chicago, Illinois, USA
Louisville, Kentucky, USA
Total built
75,241
Original price
$770
The Farmall A and B were nearly identical tractors. The A featured an offset engine and wide front end. The B had a centered engine, seat offset to the right, and narrow front end.
Variants
B
full width
BN
narrow tread
Farmall B Transmission
4-speed sliding gear
Transmission details ...
Farmall B Power
Plows
1 (16 inch)
Drawbar (tested)
16.21 hp 12.1 kW
Belt (tested)
18.39 hp 13.7 kW
Performance test details ...
Mechanical
Two-wheel drive
Manual steering
Open operator station.
Power Take-off (PTO)
Rear PTO Type
540
Dimensions & Tires
Weight
2400 lbs 1088 kg
Front tire
6-12
Rear tire
9-24
Full dimensions and tires ...
Belt Pulley
Diameter
8.5 inches 21 cm
Width
6 inches 15 cm
RPM
1157
Speed
2574 ft/min 784.56 meters/min
References
B references literature
Farmall Letter Series Tractors by Lee Klancher

Engine

Engine options
International Harvester 1.9L 4-cyl gasoline
International Harvester 1.9L 4-cyl kerosene

Engine Detail — 113.1 ci / 1.9 L Gasoline

Manufacturer
International Harvester C113
Fuel Type
Gasoline
Configuration
4-cylinder, liquid-cooled vertical I-head
Displacement
113.1 ci 1.9 L
Bore/Stroke
3.00x4.00 inches 76 x 102 mm
Compression
5.33:1
Rated RPM
1400
Firing order
1-3-4-2
Oil capacity
5 qts 4.7 L
Coolant capacity
13.5 qts 12.8 L
Sparkplug gap
0.025 inches 0.635 mm
Point gap
0.020 inches 0.508 mm
Intake valve clearance
0.014 inches (hot) 0.356 mm
Exhaust valve clearance
0.014 inches (hot) 0.356 mm

Engine Detail — 113.1 ci / 1.9 L Kerosene

Manufacturer
International Harvester
Fuel Type
Kerosene
Configuration
4-cylinder, liquid-cooled vertical I-head
Displacement
113.1 ci 1.9 L
Bore/Stroke
3.00x4.00 inches 76 x 102 mm
Rated RPM
1400
Firing order
1-3-4-2
Oil capacity
5 qts 4.7 L
Coolant capacity
13.5 qts 12.8 L
Sparkplug gap
0.025 inches 0.635 mm
Point gap
0.020 inches 0.508 mm
Intake valve clearance
0.014 inches (hot) 0.356 mm
Exhaust valve clearance
0.014 inches (hot) 0.356 mm

Transmission

Transmission — 4 forward and 1 reverse sliding gear

Type
sliding gear
Gears
4 forward and 1 reverse
B sliding gear speeds

Dimensions

Farmall B Tires
Ag front
6-12
Ag rear
9-24
Ag front
4.00-15
5.00-15
Ag rear
9-24
Dimensions
Length
108 inches 274 cm
Width
79.5 inches 201 cm
Height
65 inches 165 cm
Weight
2400 lbs 1088 kg
Rear tread
64/68/72/76 inches 162/172/182/193 cm (wheel in)
Rear tread
80/84/88/92 inches 203/213/223/233 cm (wheel out)

Tests

Tractor Tests
NTTL 331: gasoline 4-speed 2WD
NTTL 332: distillate 4-speed 2WD
Nebraska Tractor Test 331
Gasoline 4-speed 2WD September 25 - 29, 1939 Link: Nebraska Tractor Test 331 file
Belt power (max)
18.39 hp 13.7 kW
Belt fuel use (max)
1.6 gal/hour 6.1 l/hour
Drawbar performance
Max power
16.21 hp 12.1 kW
Gear 2 used for power test.
Max pull
2,377 lbs 1078 kg
Gear 1 used for pull test.
Nebraska Tractor Test 332
Distillate 4-speed 2WD October 9 - 13, 1939 Link: Nebraska Tractor Test 332 file
Belt power (max)
16.00 hp 11.9 kW
Belt fuel use (max)
1.4 gal/hour 5.3 l/hour
Drawbar performance
Max power
14.73 hp 11.0 kW
Fuel use
1.2 gal/hour 4.5 l/hour
Gear 2 used for power test.
Max pull
2,463 lbs 1117 kg
Gear 1 used for pull test.

Photos

Farmall B, front-right view.

Farmall B, front-right view.

Farmall B, left side.

Farmall B, left side.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Farmall B.

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours

Farmall B Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Farmall B.

Converted Equivalents:

Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS

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