International Harvester 284

Last Updated: July 2024

Overview

The International Harvester 284 is a versatile compact utility tractor that was in production from 1976 to 1984 by Komatsu in Japan for International Harvester. This model could be configured as either a 2WD or 4WD unit, catering to various farming needs. The tractor comes equipped with a Mazda 1.2L four-cylinder gasoline engine, offering a balance of reliability and efficiency for operators. Its transmission system provides 8 forward and 2 reverse gears, coupled with a dry disc clutch, ensuring ample control across different terrains. With manual steering and hydraulic wet disc brakes, operators can expect a responsive handling experience. The tractor could be fitted with an open operator station or an optional two-post ROPS with a canopy for added protection. In addition, the International Harvester 284 offers a solid rear hitch with a lift capacity of 2,010 lbs, making it suitable for a wide range of attachments and implements for diverse agricultural tasks. Nebraska Tractor Test results show a maximum power output of 27.80 HP at 2600 rpm with a fuel consumption of 2.264 Gal/hr at maximum power.
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Key Specifications

Category: Utility

Power Output: 27.80

Transmission: Sliding gear with dry disc clutch

Operating Weight: 2,430 - 2,740

Fuel Type: Gasoline

Lift Capacity: 2,010 lbs

International Harvester 284 vs. Similar Tractors

Power Output
Below Average
Greater than 23% of similar tractors.
Hitch Capacity
Poor
Greater than 3% of similar tractors.

Technical Specifications

Engine

Manufacturer
Mazda
Model
M4-71G
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Valve Configuration
-
Fuel Type
Gasoline
Induction Type
Naturally aspirated
Cylinders
4
Displacement (ci)
71.3
Bore (in)
2.76
Stroke (in)
2.99
Rated RPM
2600
Power Output (hp)
27.80

Transmission

Type
Sliding gear with dry disc clutch
Forward Gears
8
Reverse Gears
2
Total Gears
-

Dimensions

Length (in)
-
Width (in)
55.1
Height (in)
72
Operating Weight (lb)
2,430 - 2,740

Power Take-Off (PTO)

PTO Type
Transmission
PTO Speed 1 (rpm)
540
PTO Speed 2 (rpm)
1000
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x2 2WD or 4x4 MFWD 4WD
Drive Type
-
Steering Type
Manual
Coolant Capacity (qts)
5.2
Front Tire Diameter (in)
15
Front Tire Width (in)
-
Rear Tire Diameter (in)
24
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Agricultural
Manufacture - End Year
1984
Hitch Type
-
Hitch Category
I
Hitch Position
-
Hitch Capacity (lb)
2,010 lbs
Operator Station Type
Open operator station or two-post ROPS with canopy (optional)
Starter Type
Electric
Brake Type
Hydraulic wet disc
Hydraulic System Type
-

Test Results

Nebraska Tractor Test Laboratory - Test Date: January 1, 1978

Maximum Power and Fuel Consumption

  • Maximum Power: 27.80 HP (20.74 kW) at 2600 rpm
  • Fuel Consumption at Maximum Power: 2.264 Gal/hr (8.57 l/h) with a fuel efficiency of 0.621 lb/hp.hr (0.378 kg/kW.h)

Drawbar Performance

  • Power at Rated Engine Speed: 23.12 HP (17.24 kW) with a drawbar pull of 1560 lbs (6.94 kN) and a speed of 4.83 mph (7.77 km/h)
  • Fuel Consumption at Rated Speed: 0.641 lb/hp.hr (0.390 kg/kW.h) with a fuel efficiency of 12.43 Hp.hr/gal (2.45 kW.h/l)

Torque and Engine Performance

  • Maximum Torque: 88.4 lb.-ft. (119.9 Nm) at 1600 rpm
  • Torque Rise: 14.2% with a power increase at 2600 rpm of 5.4%

Hydraulic Performance

  • Maximum Force Exerted: N/A (information unavailable in provided extract)
  • Pump Delivery Rate: N/A (information unavailable in provided extract)
  • Hydraulic Power: N/A (information unavailable in provided extract)

Overall Efficiency

  • Fuel Efficiency at Standard PTO Speed (540 rpm): 12.50 Hp.hr/gal (2.46 kW.h/l)
  • Fuel Consumption: 2.178 Gal/hr (8.24 l/h) at 2315 rpm



NTTL.(1978).Nebraska Tractor Test 1277 for International Harvester 284 Gasoline. Lincoln, NE:Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1596

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