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International Harvester 3688 Tractors

International Harvester 3688  
Power: 125 hp[P]
Date of manufacture :
1981 - 1985
Production
Manufacturer:International Harvester
Type:Row-Crop tractor
Factory:Rock Island, Illinois, USA
Total built:2,572
Original price:$45,000 (1981 )
Variants
3688 Hi-Clear:high-clearance model
International Harvester 3688 Power
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
International Harvester 3688 Engine
Mechanical
Chassis:4x2 2WD
 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
Photos
International Harvester 3688 photos...
Capacity
Fuel:50 gal
189.3 L
Hydraulic system:22.5 gal
85.2 L
Hydraulics
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
Rear Type:II
Control:draft sensing
Power Take-off (PTO)
Rear PTO:independent
Rear RPM:540/1000
Engine RPM:540@2100
1000@2100
Dimensions & Tires
Wheelbase:105 inches
266 cm
Weight:11300 to 13200 pounds
Front tire:11L-15
Rear tire:18.4-34
Full dimensions and tires ...
3688 Serial Numbers
Location:Serial number plate on the right side of the tractor frame, ahead of the rear axle.
1981:501
1982:1743
1983:2482
1984:2695
1985:3068

how to read serial numbers...

Electrical
Ground:negative
Battery volts:12
Other Tractors
International Harvester 3288 Power: 100 hp[P] Date of manufacture : 1981 - 1985
International Harvester 3388 Power: 145 hp[P] Date of manufacture : 1978 - 1981
International Harvester 3488 Power: 124 hp[P] Date of manufacture : 1981 - 1984
International Harvester 3588 Power: 167 hp[P] Date of manufacture : 1978 - 1981
International Harvester 3688 Power: 125 hp[P] Date of manufacture : 1981 - 1985
International Harvester 3788 Power: 189 hp[P] Date of manufacture : 1980 - 1981
International Harvester 4100 Power: 144 hp[P] Date of manufacture : 1965 - 1968
International Harvester 4156 Power: 155 hp[P] Date of manufacture : 1969 - 1970
International Harvester 4166 Power: 175 hp Date of manufacture : 1972 - 1976