International Harvester Cub Lo-Boy

The International Harvester Cub Lo-Boy is a tractor produced by International Harvester. It is equipped with a 59.5 ci 1.0 L engine. The rated power output is 13.4 hp 10.0 kW. Transmission: 3 forward and 1 reverse. Operating weight: 1620 lbs 734 kg.

Overview

	1955 - 1968 Utility tractor
1955 - 1968
Utility tractor

Production
Manufacturer	International Harvester
Utility tractor
Built in Louisville, Kentucky, USA
The Cub Lo-Boy is very similar to the standard Cub. The Lo-Boy using shorter front end spindles and rotating the final drive made the Lo-Boy about 8 inches shorter than the standard Cub. Both the standard Cub and the Lo-Boy had the IH "Cultivision" offset engine and steering.

International Harvester Cub Lo-Boy Engine
International Harvester 1.0L 4-cyl gasoline
Fuel tank	7.5 gal 28.4 L
Engine details ...

International Harvester Cub Lo-Boy Transmission
3-speed sliding gear
Transmission details ...

International Harvester Cub Lo-Boy Power
Engine	13.4 hp 10.0 kW
Drawbar (claimed)	10 hp 7.5 kW
PTO (claimed)	11 hp 8.2 kW
Belt (claimed)	9.76 hp 7.3 kW
Plows	1 (12 inch)

Mechanical
Two-wheel drive
Final drives	bull gear
Manual steering
Open operator station.

Hydraulics
Type	open center
Pressure	1200 psi 82.7 bar
Pump flow	2.8 gpm 10.6 lpm

Tractor hitch
Type	IH Fast Hitch OptOptional

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	Cub-10 (0.9375)
Engine RPM	-1800@1800

Dimensions & Tires
Wheelbase	62 inches 157 cm
Weight	1620 lbs 734 kg
Front tire	4.00-12
Rear tire	8.3-24
Full dimensions and tires ...

Links
FarmallCub.com: Information, photos, and a message board

Electrical
Ground	positive (early)
	negative (late)
Battery volts	6 (early)
	12 (late)

References
Buyers Guide International Industrial Tractors & Equipment published in 1960, by International Harvester
Industrial Tractors and matched equipment published in 1960, by International Harvester
Industrial Tractors & Equipment Buyers Guide published in 1962, by International Harvester
Farm Loaders published in 1962, by International Harvester
Farm Loaders published in 1970, by International Harvester
Spring 1968 Buyer's Guide published by International Harvester
Summer-Fall 1968 Buyer's Guide published by International Harvester
Cub Lo-Boy and Cub Tractors published in 1966, by International Harvester
Cub Lo-Boy Tractor published by International Harvester
International Cub and Cub Lo-Boy Tractors (1 014 031 R3) published in 1959
International Cub and Cub Lo-Boy Tractors (1 014 488 R4) published in 1965
International Cub and Cub Lo-Boy Tractors (1 014 488 R8) published in 1975

Engine

Engine Detail — 59.5 ci / 1.0 L Gasoline

Manufacturer	International Harvester C60
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled
Displacement	59.5 ci 1.0 L
Bore/Stroke	2.625x2.75 inches 67 x 70 mm
Power	13.4 hp 10.0 kW
Rated RPM	1800
Firing order	1-3-4-2
Starter volts	6 (early)
	12 (late)
Oil capacity	3 qts 2.8 L
Coolant capacity	9.75 qts 9.2 L
Sparkplug gap	0.023 inches 0.584 mm
Intake valve clearance	0.013 inches (cold) 0.330 mm
Exhaust valve clearance	0.013 inches (cold) 0.330 mm

Transmission

Transmission — 3 forward and 1 reverse sliding gear

Type	sliding gear
Gears	3 forward and 1 reverse
Clutch	dry disc

Dimensions

International Harvester Cub Lo-Boy Tires
Ag front	4.00-12
Ag rear	8.3-24

Dimensions
Wheelbase	62 inches 157 cm
Length	92 inches 233 cm
Width	48.25 inches*Width at minimum tread. 122 cm
Height (steering wheel)	56.25 inches 142 cm
Weight	1620 lbs 734 kg
Clearance (front axle)	14 inches 35 cm
Clearance (rear axle)	14 inches 35 cm
Rear axle	1.56 inch diameter 39 mm
Front tread	43 to 55 inches 109 to 139 cm
Rear tread	40 to 56 inches 101 to 142 cm

Photos

Later style (1964+) Lo-Boy in yellow

Early round-grill (1955-1956) Lo-Boy in red

White-grill Lo-Boy (1958-1963) with Fast Hitch

Early Cub Lo-Boy in yellow

Early Cub Lo-Boy in yellow