International Harvester

International Harvester 674

The International Harvester 674 is a utility tractor produced from 1973 to 1977 by International Harvester. It was manufactured in Doncaster, England and Louisville, Kentucky, USA. The tractor features two engine options: a 3.9L 4-cylinder diesel and a 3.3L 4-cylinder gasoline engine. It has an 8-speed gear transmission with 4 reverse speeds, power steering, hydraulic wet disc brakes, and an open operator station with optional four-post ROPS and cab. The 674 offers a drawbar power of 54.45 hp and PTO power of 61.56 hp. It includes an open center hydraulic system with a 13 gpm pump flow and a rear Type II hitch with position and draft control. The tractor's dimensions include a wheelbase of 84.5 inches, length of 131 inches, and operating weight of 5,650 lbs. It runs on 7.50-16 front tires and 16.9-30 rear tires. The 674 was originally priced at $11,300 in 1978.
Power65 hp[P]
Founded1973 - 1977
Model674

Technical Specifications

Detailed specifications and technical data for International Harvester 674

Power
PTO (tested)61.56 hp (45.9 kW)
Drawbar (tested)54.45 hp (40.6 kW)
Tires
Ag rear16.9-30
Ag front7.50-16
Engine
Fuel tank20 gal (75.7 L)
Engine optionsInternational Harvester 3.9L 4-cyl diesel; International Harvester 3.3L 4-cyl gasoline
Diesel rated RPM2400
Diesel air cleanerdual stage dry
Diesel bore/stroke3.875x5.06 inches (98 x 129 mm)
Diesel compression16:1
Diesel engine typediesel, 4-cylinder, liquid-cooled
Gasoline rated RPM2400
Diesel displacement239 ci (3.9 L)
Diesel engine modelInternational Harvester D239
Diesel starter volts12
Gasoline air cleanerdual stage dry
Gasoline bore/stroke3.8125x4.39 inches (97 x 112 mm)
Gasoline compression7.33:1
Gasoline engine typegasoline, 4-cylinder, liquid-cooled
Gasoline displacement200.3 ci (3.3 L)
Gasoline engine modelInternational Harvester C200
Gasoline starter volts12
Dimensions
Width70 inches (177 cm)
Length131 inches (332 cm)
Wheelbase84.5 inches (214 cm)
Rear tread56 to 76 inches (142 to 193 cm)
Front tread54 to 80 inches (137 to 203 cm)
Height (cab)93 inches (236 cm)
Ballasted weight8,690 lbs (3941 kg)
Operating weight5,650 lbs (2562 kg)
Clearance (rear axle)23 inches (58 cm)
Height (steering wheel)62 inches (157 cm)
Electrical
Groundnegative
Battery volts12
Hydraulics
Typeopen center
Pump flow13 gpm (49.2 lpm)
Mechanical
DriveTwo-wheel drive
BrakesHydraulic wet disc brakes
SteeringPower steering
Operator stationOpen operator station. Four-post ROPS and cab available.
Production
CategoryUtility tractor
FactoriesDoncaster, England; Louisville, Kentucky, USA
Years made1973 - 1977
Original price$11,300 in 1978
Transmission
Typegear
Gears8 forward and 4 reverse
Clutchdry disc
Tractor hitch
Controlposition and draft control
Rear TypeII
Rear lift3969 lbs (1800 kg)
Serial Numbers
1973100001
1974101862
1975103172
1976105946
1977107555
Serial number locationSerial number plate on the left side of the transmission housing.
Power Take-off (PTO)
Rear PTOindependent
Rear PTO Type540 (1.375)