International Harvester 3688 Specifications
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.
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.