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International Harvester 844S

The International Harvester 844S farm tractor was manufactured between 1975 and 1989. The IH 844S tractor is powered by International Harvester D-268 4-cycle 4-cylinder direct injection liquid-cooled diesel engine. A 268 cubic inches (4.4 L) engine has a cylinder bore of 3.94" (100 mm), piston stroke of 5.50" (140 mm), rated power of 87 hp (64.9 kW), and max torque of 296 Nm (218 lb-ft) at 1300 rpm.

The International Harvester 844-S is fitted with 3 transmission options: mechanical transmission with 8 forward and 4 reverse gears, Agriomatic transmission with 12 forward and 4 reverse gears, or IH Total-Synchron 2-speed powershift transmission with 16 forward and 8 reverse gears. The maximum forward speed - 19.1 mph (30.7 km/h), maximum reverse speed - 11 mph (17.7 km/h). The open center hydraulic system includes a gear pump with rated fluid flow of 7.9 gallons per minute (29.9 liters per minute).

The main relief pressure is 167 bar (2425 psi). The 2-wheel drive models are equipped with 7.50x16 front tyres and 15.0x34 rear tyres. The 10.00x24 front tyres and 15.0x34 rear tyres fit 4-wheel drive tractors. The wheelbase is 94.1" (2390 mm) for 4x2 (2WD) models and 92.9" (2350 mm) for 4x4 (4WD) models.

Engine
Engine Model International Harvester D-268
Engine Type 4-stroke, 4-cylinder liquid-cooled diesel
Number of Cylinders 4
Displacement, cu in (L) 268 (4.40)
Engine Bore, in (mm) 3.94 (100.0)
Engine Stroke, in (mm) 5.50 (140.0)
Aspiration Natural
Rated Engine Power, hp (kW) 87.0 (64.9)
Rated Engine Speed, rpm 2300
Maximum Torque, Nm (ft-lbs) 296 (218)
Torque Speed, rpm 1300
Compression 16:1
Fuel System Direct injection
Fuel Tank Capacity, gal (L) 22.4 (84.8)
Oil Capacity, qts (L) 8.0 (7.6)
Coolant Capacity, qts (L) 17.2 (16.3)
Electrical System Rating, Volts 12
Charging System Alternator
Alternator Rating, Amps 28

Power Take-Off
PTO Operational Type Independent
PTO Horsepower, hp (kW) 73.0 (54.4)
PTO Clutch Type Hydraulic
PTO Speeds, rpm 540/1000

Standard Transmission
Transmission Type Gear
Gearbox Type 8F/4R
Number of Forward Gears 8
Number of Reverse Gears 4
Clutch Type Dry disc
Oil Capacity, qts (L) 36.8 (34.8)
Maximum Forward Speed, mph (kph) 19.1 (30.7)
Maximum Reverse Speed, mph (kph) 11.0 (17.7)

Optional Transmission
Transmission Type Agriomatic
Gearbox Type 12F/4R
Number of Forward Gears 12
Number of Reverse Gears 4
Clutch Type Dry disc
Oil Capacity, qts (L) 30.8 (29.1)
Maximum Forward Speed, mph (kph) 18.6 (29.9)
Maximum Reverse Speed, mph (kph) 10.8 (17.3)

Optional Transmission
Transmission Type IH Total-Synchron
Gearbox Type 16F/8R, 2-speed powershift
Number of Forward Gears 16
Number of Reverse Gears 8
Clutch Type Dry disc
Maximum Forward Speed, mph (kph) 18.6 (29.9)
Maximum Reverse Speed, mph (kph) 10.8 (17.4)

Wheels and Tires
Drive Wheels 2WD/4WD
Steering Configuration Front Steer
Steering System Hydrostatic power
Brakes Type Differential hydraulic wet disc
Front Tire Size (2WD) 7.50-16
Rear Tire Size (2WD) 15.0-34
Front Tire Size (4WD) 10.0-24
Rear Tire Size (4WD) 15.0-34

Hydraulic System
Hydraulic System Type Open Center
Implement Pump Flow, gpm (Lpm) 7.9 (29.9)
Hydraulic Capacity, gal (L) 4.0 (15.1)
Hydraulic Pressure, Bar (psi) 167 (2425)
Number of Standard Remote Valves 1/2
3-Point Hitch Category 2
Draft Sensing or Lift Control Lower link draft sensing
Standard Lift Capacity at lift pin, lb (kg) 6945 (3150)

Dimensions and Weight
Wheelbase (2WD), in (mm) 94.1 (2390)
Wheelbase (4WD), in (mm) 92.9 (2350)
Length (2WD), in (mm) 153.2 (3890)
Length (4WD), in (mm) 155.7 (3940)
Height (Cab), in (mm) 100 (2500)
Overall Width, in (mm) 80.3 (2030)
Ground Clearance (2WD), in (mm) 19.7 (500)
Ground Clearance (4WD), in (mm) 15.5 (390)
Weight (2WD), lb (kg) 7520 (3410)
Weight (4WD), lb (kg) 8230 (3735)

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