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Tractor Attachments for the International Harvester 3688

Your tractor
International Harvester 3688
Production
1981 to 1985
Power
125 hp
Class
tractor

Tractor Hedge Cutters for the International Harvester 3688

Hitch one to your International Harvester 3688 to trim hedges and roadside verges from the tractor seat. The boom reaches into hedge tops and over field-edge banks where a fixed flail or topper can't, with its own PTO-driven hydraulics so it doesn't fight your tractor's spools.

About the International Harvester 3688

International Harvester Logo

Engine Horsepower: 125 hp

Manufactured: 1981 to 1985

International Harvester 3688 Summary

The International Harvester 3688 was produced from 1981 to 1985 as part of the 30 Series. This row-crop tractor, manufactured in Rock Island, Illinois, had a total production run of 2,572 units. The tractor features a 7.1L 6-cylinder diesel engine with a claimed drawbar horsepower of 100.2 hp and a PTO horsepower of 113 hp. A high-clearance model, the 3688 Hi-Clear, was also available as a variant.

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International Harvester 3688 Horsepower, Weight, and Specifications:

Production

Who manufactured the International Harvester 3688 tractor and where?

  • Manufacturer: International Harvester
  • Type: Row-Crop tractor
  • Factory: Rock Island, Illinois, USA
  • Total built: 2,572
  • Original price: $45,000 (1981)

Variants

What is a notable variant of the International Harvester 3688?

  • 3688 Hi-Clear: high-clearance model

Horsepower

What is the horsepower of the International Harvester 3688 tractor?

  • Drawbar (claimed): 100.2 hp (74.7 kW)
  • PTO (claimed): 113 hp (84.3 kW)
  • Drawbar (tested): 99.21 hp (74.0 kW)
  • PTO (tested): 113.72 hp (84.8 kW)

Engine

What type of engine does the International Harvester 3688 have?

  • Engine: International Harvester 7.1L 6-cyl diesel

Mechanical

What are the mechanical features of the International Harvester 3688?

  • Chassis: 4x2 2WD or 4x4 MFWD 4WD
  • Steering: power
  • Brakes: hydraulic wet disc
  • Cab: Cab standard with heat and A/C. Optional burgundy or western finish interiors.
  • Transmission: 16-speed partial power shift

Capacity

What are the capacity specifications for fuel and hydraulic system of the International Harvester 3688?

  • Fuel: 50 gal (189.3 L)
  • Hydraulic system: 22.5 gal (85.2 L)

Hydraulics

What are the hydraulic features of the International Harvester 3688?

  • Type: closed center
  • Capacity: 22.5 gal (85.2 L)
  • Valves: 2 to 4
  • Pump flow: 18 gpm (68.1 lpm)
  • Total flow: 27 gpm (102.2 lpm)
  • Steering flow: 12 gpm (45.4 lpm)

Tractor Hitch

What is the rear hitch type of the International Harvester 3688?

  • Rear Type: II
  • Control: draft sensing

Power Take-off (PTO)

What type of PTO does the International Harvester 3688 have?

  • Rear PTO: independent
  • Rear RPM: 540/1000
  • Engine RPM: 540@2100, 1000@2100

Dimensions & Tires

What are the dimensions and tire sizes of the International Harvester 3688?

  • Wheelbase: 105 inches (266 cm)
  • Weight: 11300 to 13200 pounds
  • Front tire: 11L-15
  • Rear tire: 18.4-34

Electrical

What is the electrical system of the International Harvester 3688?

  • Ground: negative
  • Battery volts: 12
Disclaimer: The information provided on this page may be less than 100% accurate. Always check the manufacturer's official manual.