International Harvester

International Harvester 606

The International Harvester 606 is a utility tractor produced from 1962 to 1967. It features multiple engine options including gasoline, diesel, and LP gas 6-cylinder engines. The tractor offers 10-speed and 5-speed transmission options with Torque Amplifier and Fast Reverser features. It has a drawbar power of 45 hp claimed and tested up to 46.71 hp, with PTO power claimed at 50 hp and tested at 54.31 hp. The 606 is equipped with two-wheel drive, independent mechanical disc brakes, and an open operator station. It supports various front-end loader attachments and has a rear PTO with independent operation. The tractor weighs between 5215 to 5465 lbs depending on the engine type, with ballasted weight up to 8908 lbs. It has a wheelbase of 78 inches and uses 6.00-16 front tires and 14.9-28 rear tires.

Power55 hp[P]

Founded1962 - 1967

Model606

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Technical Specifications

Detailed specifications and technical data for International Harvester 606

Power

PTO (tested)	54.31 hp (40.5 kW)
PTO (claimed)	50 hp (37.3 kW)
Drawbar (tested)	46.71 hp (34.8 kW)
Drawbar (claimed)	45 hp (33.6 kW)

Engine

Diesel engine	International Harvester D-236, 6-cylinder, liquid-cooled, Displacement 236 ci (3.9 L), Bore/Stroke 3.6875x3.6875 inches (94 x 94 mm), Air cleaner dry, Rated RPM 2000, Coolant capacity 23 qts (21.8 L)
LP gas engine	International Harvester C-221, 6-cylinder, liquid-cooled
Engine options	International Harvester 3.6L 6-cyl gasoline, International Harvester 3.9L 6-cyl diesel, International Harvester 3.6L 6-cyl LP gas
Gasoline engine	International Harvester C-221, 6-cylinder, liquid-cooled, Displacement 221 ci (3.6 L), Bore/Stroke 3.5625x3.6875 inches (90 x 94 mm), Air cleaner dry, Rated RPM 2000, Starter volts 12, Coolant capacity 20.5 qts (19.4 L)

Dimensions

Rear tire	14.9-28
Wheelbase	78 inches (198 cm)
Front tire	6.00-16
Rear tread	52 to 76 inches (132 to 193 cm)
Front tread	54 to 78 inches (137 to 198 cm), 52 inches (132 cm)
Weight Ballasted	8908 lbs (4040 kg) (Diesel tractor with fluid-filled rear tires and iron weights on front and rear wheels.)
Weight Gas Operating	5215 lbs (2365 kg)
Height (steering wheel)	62 inches (157 cm)
Weight Diesel Operating	5465 lbs (2478 kg)

Hydraulics

Valves	0 to 2
Total flow	12 gpm (45.4 lpm), 17 gpm Optional (64.3 lpm)

Mechanical

Drive	Two-wheel drive
Brakes	Independent mechanical disc brakes
Operator station	Open operator station.

Production

Type	Utility tractor
Total built	7,348
Original price	$4,900 in 1967
Years produced	1962 - 1967

Attachments

2000 Loader	2330 lbs lift (full at pin) (1056 kg), 4010 lbs breakout (1818 kg), 20° rollback, 127 inches height (at pin) (322 cm), 106 inches clearance (dumped) (269 cm), boom cyl: 2.0 inches (5 cm), boom cyl: 2.5 inches (6 cm), bucket cyl: 2.5 inches (6 cm), weight 1417 lbs (642 kg), Bucket width 48 inches (121 cm), Bucket width 60 inches (152 cm)
2001 Loader	2000 lbs lift (full at pin) (907 kg), 4000 lbs breakout (1814 kg), 148.5 inches height (at pin) (377 cm), 98 inches clearance (dumped) (248 cm), weight 1160 lbs (526 kg), Bucket width 40 inches (101 cm), Single-acting lift cylinders.
Loader options	front-end loader
2001 Loader (alt)	1350 lbs lift (full at pin) (612 kg), 2600 lbs breakout (1179 kg), 148.5 inches height (at pin) (377 cm), 98 inches clearance (dumped) (248 cm), weight 1160 lbs (526 kg), Bucket width 40 inches (101 cm), Double-acting lift cylinders.

Belt Pulley

RPM	1062
Speed	3057 ft/min (931.77 meters/min)
Diameter	11 inches (27 cm)

Transmission

Options	10-speed, 5-speed
Fast Reverser	5 forward and reverse gears, Oil capacity 52 qts (49.2 L), Five gears with reverser. High speed option provides 40% faster first gear.
Torque Amplifier	10 forward and 2 reverse gears, Oil capacity 52 qts (49.2 L), Five forward and one reverse gear plus Torque Amplifier (TA). The TA provides a powershift from direct drive (DD) to the lower TA speed. High-speed option provides 40% faster first gear.

Tractor hitch