International Harvester 634 tractor specifications

1968 - 1972

Production

Production Manufacturer:International Harvester
Factory:Doncaster, England
Total built:3,848

International Harvester 634 Power

International Harvester 634 Power Engine:66 hp
49.2 kW
PTO (claimed):59.3 hp
44.2 kW

International Harvester 634 Engine

International Harvester 634 Engine International Harvester 4.6L 4-cyl diesel Fuel tank:20.4 gal
77.2 L
Engine details ...

1968 - 1972

Engine Detail

Engine Detail
International Harvester BD-281
diesel
4-cylinder
liquid-cooled
Displacement:	281 ci 4.6 L
Bore/Stroke:	4.125x5.25 inches 105 x 133 mm
Power:	66 hp 49.2 kW
Rated RPM:	1600
Torque:	225 lb-ft 305.1 Nm
Torque RPM:	1000
Starter volts:	12

Mechanical

Mechanical Chassis:4x2 2WD
4x4 4WD*Four-wheel drive conversion by County
2WD Steering:manual
4WD Steering:power
Brakes:mechanical disc
Cab:Open operator station. Cab optional.
Transmission:8-speed
Transmission details ...

1968 - 1972

Transmission

Transmission
Gears:	8 forward and 2 reverse
Clutch:	330mm dry disc

Hydraulics

Hydraulics Pressure:2500 psi
172.4 bar
Pump flow:10.4 gpm
39.4 lpm
Steering flow:4.8 gpm
18.2 lpm
Steering press.:1500 psi
103.4 bar

Tractor hitch

Tractor hitch Rear Type:II
Control:position and draft control
Rear lift:3360 lbs
1524 kg

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Rear RPM:540 (1.375)
Engine RPM:540@1458

Dimensions & Tires

Dimensions & Tires 2WD Wheelbase:86.8 inches
220 cm
4WD Wheelbase:86.8 inches
220 cm
AWD Wheelbase:75 inches
190 cm
Weight:6546 to 9574 pounds
Front tire:7.50-16
2WD Rear tire:11-38
Full dimensions and tires ...

1968 - 1972

International Harvester 634 Tires

International Harvester 634 Tires
2WD Standard tires (ag):	Front: 7.50-16. Rear: 11-38
4WD Standard tires (ag):	Front: 10-24. Rear: 12-38
AWD Standard tires (ag):	Front: 14-30. Rear: 14-30

Dimensions

Dimensions
2WD Wheelbase:	86.8 inches 220 cm
4WD Wheelbase:	86.8 inches 220 cm
AWD Wheelbase:	75 inches 190 cm
2WD Length:	138 inches 350 cm
4WD Length:	139 inches 353 cm
AWD Length:	150 inches 381 cm
Width:	65.5 inches 166 cm
Height (cab):	96 inches 243 cm
2WD Front tread:	52 to 61 inches 132 to 154 cm
4WD Front tread:	53 to 66 inches 134 to 167 cm
AWD Front tread:	60 to 80 inches 152 to 203 cm
2WD Rear tread:	56 to 72 inches 142 to 182 cm
4WD Rear tread:	56 to 72 inches 142 to 182 cm
AWD Rear tread:	60 to 80 inches 152 to 203 cm