International Harvester 660 tractor specifications

1959 - 1963

1959 - 1963 Standard-tread tractor

Series:

Series:560 ← 660

1958 - 1963

Standard-tread tractor

Series:

560

→ 660

Production

Production
Manufacturer:	International Harvester
Type:	Standard-tread tractor
Total built:	65,982
Original price:	$5,500 (1963)

Variants

Variants
Farmall 560:	row-crop
Hi-Clear:	high-crop

International Harvester 560 Power

International Harvester 560 Power
Engine:	72.5 hp 54.1 kW
Drawbar (claimed):	54.8 hp 40.9 kW
PTO (claimed):	59.48 hp 44.4 kW
Plows:	5
Drawbar (tested):	44.83 hp 33.4 kW
PTO (tested):	61.04 hp 45.5 kW
power test details ...

International Harvester 560 Engines

International Harvester 560 Engines
International Harvester 4.6L 6-cyl diesel
International Harvester 4.3L 6-cyl gasoline
International Harvester 4.3L 6-cyl LP gas
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Steering:	manual
	hydrostatic power optional
Brakes:	independent mechanical disc
Cab:	Open operator station.
Transmissions:	5-speed
	10-speed
Transmission details ...

Capacity

Capacity
Fuel:	33 gal 124.9 L (gas/diesel)
	37.5 gal 141.9 L LP
Hydraulic system:	16 gal 60.6 L

Hydraulics

Hydraulics
Capacity:	16 gal 60.6 L
Valves:	2
Pump flow:	12 gpm 45.4 lpm
Total flow:	12 gpm 45.4 lpm
	17 gpm 64.3 lpm (optional)
Steering flow:	2.5 gpm 9.5 lpm

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	independent
Rear RPM:	540

Dimensions & Tires

Dimensions & Tires
Wheelbase:	85.5 inches 217 cm
Weight:	6563 to 6785 pounds
Front tire:	6.50-18
Rear tire:	16.9/14-30
Full dimensions and tires ...

International Harvester 560 attachments

International Harvester 560 attachments
front-end loader
backhoe
Attachment details ...

560 Serial Numbers

560 Serial Numbers
Location:	Clutch housing, right side
photo of 560 serial number
1958:	501
1959:	1210
1960:	3103
1961:	4032
1962:	4944
1963:	5598
how to read serial numbers...

Belt Pulley

Belt Pulley
Diameter:	11 inches 27 cm
Width:	7.5 inches 19 cm

Production

Production Manufacturer:International Harvester
Type:Standard-tread tractor
Total built:6,945
Original price:$6,000 (1963)

International Harvester 660 Power

International Harvester 660 Power Engine:95 hp
70.8 kW
Plows:6
Drawbar (tested):70.21 hp
52.4 kW
PTO (tested):81.39 hp
60.7 kW
power test details ...

1959 - 1963

Standard-tread tractor

Series:

560 ←

660

Nebraska Tractor Test 715

Nebraska Tractor Test 715
Diesel TA 2WD August 31 - September 5, 1959 Link: Nebraska Tractor Test 715 file
PTO performance
Power at rated engine speed:	78.78 hp 58.7 kW
Fuel use:	5.5 gal/hour 20.8 l/hour
Drawbar performance
Max power:	64.43 hp 48.0 kW
Fuel use:	5.2 gal/hour 19.7 l/hour
Max pull:	11,046 lbs 5010 kg
Gear 2-TA used for pull test.

Nebraska Tractor Test 721

Nebraska Tractor Test 721
Gasoline TA 2WD October 1 - 12, 1959 Link: Nebraska Tractor Test 721 file
PTO performance
Power at rated engine speed:	81.39 hp 60.7 kW
Fuel use:	6.4 gal/hour 24.2 l/hour
Drawbar performance
Max power:	70.21 hp 52.4 kW
Fuel use:	6.3 gal/hour 23.8 l/hour

Nebraska Tractor Test 722

Nebraska Tractor Test 722
LP gas TA 2WD October 3 - 12, 1959 Link: Nebraska Tractor Test 722 file
PTO performance
Power at rated engine speed:	80.63 hp 60.1 kW
Fuel use:	8.9 gal/hour 33.7 l/hour
Drawbar performance
Max power:	69.66 hp 51.9 kW
Fuel use:	8.8 gal/hour 33.3 l/hour

International Harvester 660 Engines

International Harvester 660 Engines International Harvester 4.3L 6-cyl gasoline International Harvester 4.6L 6-cyl diesel International Harvester 4.3L 6-cyl LP gas Fuel tank:33 gal
124.9 L (gas/diesel)
37.5 gal
141.9 L (LP gas)
Engine details ...

1959 - 1963

Standard-tread tractor

Series:

560 ←

660

Engines overview

Engines overview
International Harvester 4.3L 6-cyl gasoline
International Harvester 4.6L 6-cyl diesel
International Harvester 4.3L 6-cyl LP gas

Engine Detail

Engine Detail
International Harvester C-263
gasoline
6-cylinder
liquid-cooled vertical L-head
Displacement:	263 ci 4.3 L
Bore/Stroke:	3.5625x4.3906 inches 90 x 112 mm
Power:	95 hp 70.8 kW
Air cleaner:	oil bath
Compression:	7.2:1
Rated RPM:	2400
Torque:	219 lb-ft 297.0 Nm
Torque RPM:	1300
Oil capacity:	9 qts 8.5 L
Coolant capacity:	20 qts 18.9 L

Engine Detail

Engine Detail
International Harvester D-282
diesel
6-cylinder
liquid-cooled vertical L-head
Displacement:	282 ci 4.6 L
Bore/Stroke:	3.6875x4.3906 inches 94 x 112 mm
Power:	95 hp 70.8 kW
Air cleaner:	oil bath
Compression:	18.2:1
Rated RPM:	2400
Torque:	219 lb-ft 297.0 Nm
Torque RPM:	1800
Firing order:	1-5-3-6-2-4
Oil capacity:	9 qts 8.5 L
Coolant capacity:	23 qts 21.8 L

Engine Detail

Engine Detail
International Harvester C-263
LP gas
6-cylinder
liquid-cooled vertical L-head
Displacement:	263 ci 4.3 L
Bore/Stroke:	3.5625x4.3906 inches 90 x 112 mm
Power:	95 hp 70.8 kW
Air cleaner:	oil bath
Compression:	8.75:1
Rated RPM:	2400
Torque:	212 lb-ft 287.5 Nm
Torque RPM:	1200
Oil capacity:	9 qts 8.5 L
Coolant capacity:	21 qts 19.9 L

Mechanical

Mechanical Chassis:4x2 2WD
Steering:manual
hydrostatic power optional
Brakes:independent mechanical disc
Cab:Open operator station.
Transmissions:5-speed
10-speed
Transmission details ...

1959 - 1963

Standard-tread tractor

Series:

560 ←

660

Transmissions overview

Transmissions overview
5-speed
10-speed

Transmission

Transmission
Transmission:	sliding gear
Gears:	5 forward and 1 reverse
Oil capacity:	64 qts 60.6 L

Speeds

Speeds
With 18.4/15-34 rear tires.

Transmission

Transmission
Transmission:	Torque Amplifier
Gears:	10 forward and 2 reverse
Oil capacity:	64 qts 60.6 L
The Torque Amplifier (TA) provides a clutchless shift-on-the-move between direct drive (DD) and the lower TA speed.

Speeds

Speeds
With 18.4/15-34 rear tires.

Hydraulics

Hydraulics Valves:1
Total flow:12 gpm
45.4 lpm
17 gpm
64.3 lpm (optional)
Steering flow:2.5 gpm
9.5 lpm

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Rear RPM:540

Dimensions & Tires

Dimensions & Tires Wheelbase:85.5 inches
217 cm
Weight:9635 to 9875 pounds
Front tire:7.50-18
Rear tire:18.4/15-34
Full dimensions and tires ...

1959 - 1963

Standard-tread tractor

Series:

560 ←

660

International Harvester 660 Tires

International Harvester 660 Tires
Ag front:	7.50-18
Ag rear:	18.4/15-34
Industrial rear:	23.1/18-26
	16.9/14-34

Dimensions

Dimensions
Wheelbase:	85.5 inches 217 cm
Length:	142.6 inches 362 cm
Width:	78 inches 198 cm (min)
Height (steering wheel):	74 inches 187 cm
Ground clearance:	19.7 inches 50 cm (frame)
Clearance (front axle):	17.4 inches 44 cm

International Harvester 660 Weight

International Harvester 660 Weight
Operating:	9,635 lbs 4370 kg (gas)
	9,875 lbs 4479 kg (diesel)
Ballasted:	15,255 lbs 6919 kg

International Harvester 660 attachments

International Harvester 660 attachments front-end loader Attachment details ...

1959 - 1963

Standard-tread tractor

Series:

560 ←

660

IH-Wagner 625 Self-Leveling Loader

IH-Wagner 625 Self-Leveling Loader
Loader weight:	2,350 lbs 1065 kg
Height (to pin):	127.2 inches 323 cm
Breakout force (lift):	6,500 lbs 2948 kg
Lift to full height (at pin):	4,000 lbs 1814 kg

660 Serial Numbers

660 Serial Numbers Location:Right side of clutch housing
photo of 660 serial number
1959:501
1960:3398
1961:4259
1962:5883
1963:6995
Final:?

how to read serial numbers...