International Harvester
3688
Farm tractor · 1981–1985 · 125 hp
International Harvester3688
The International Harvester 3688 is a farm tractor manufactured from 1981 to 1985. It features a International Harvester D436 engine, and power steering. The transmission is a partial power shift type with 16 forward and 8 reverse.
Engine
| Engine | International Harvester D436 |
|---|---|
| Fuel Type | diesel |
| Cylinders | 6 |
| Cooling | liquid-cooled |
| Displacement | 436 ci (7.1 L) |
| Bore | 4.3 in (109 mm) |
| Stroke | 5 in (127 mm) |
| Compression Ratio | 16 |
| Power PTO | 113.72 hp (84.8 kW) |
| Power Drawbar | 99.21 hp (74 kW) |
| Air Cleaner | dual dry element |
| Starter Volts | 12 |
| Oil Capacity | 14 qts (13.2 L) |
| Coolant Capacity | 26 qts (24.6 L) |
| Manufacturer | International Harvester |
| Rated | 2,400 RPM |
| Idle | 900-2400 RPM |
Transmission
| Transmission Type | partial power shift |
|---|---|
| Gears | 16 forward and 8 reverse |
| Transmission Description | Left lever selects gear, right lever selects high, low, or reverse range. Tractor may be shifted on the move without the clutch between gear pairs (1-2, 3-4, etc). Synchronized shifting, using the clutch, between gear pairs (2 to 3, 4 to 5, etc). The transmission is four-gear with the powershift provided by an electric solenoid actuated Torque Amplifier. |
| Clutch | cerametallic disc |
| Oil Capacity | 90 qts (85.2 L) |
| Available Options | 16-speed partial power shift |
Hydraulics
| Type | closed center |
|---|---|
| Pump Flow | 18 gpm (68.1 lpm) |
| Total Flow | 27 gpm (102.2 lpm) |
| Steering Flow | 12 gpm (45.4 lpm) |
| System Capacity | 22.5 gal (85.2 L) |
Dimensions
| Length | 184 in (467 cm) |
|---|---|
| Width | 102 in (259 cm) |
| Height Cab | 112 in (284 cm) |
| Wheelbase | 105 in (266 cm) |
| Ground Clearance | 13 in (33 cm) |
| Front Tread | 60 in (152 cm) |
| Rear Tread | 66 in (167 cm) |
Weight
| Shipping | 11,300 lbs (5,125 kg) |
|---|---|
| Operating | 13,200 lbs (5,987 kg) |
Tires & Tracks
| Front Ag | 11L-15 |
|---|---|
| Rear Ag | 18.4-34 |
Fuel
| Capacity | 50 gal (189.2 L) |
|---|
Steering
| Type | power |
|---|
Cab
| Cab | standard with heat and A/C. Optional burgundy or western finish interiors. |
|---|
Nebraska Tests
NTTLTest #1440
May 26 to June 7, 1982 Temperature °F (°C) Fuel Consumption Power Crank Barometer Air Air shaft Hp inch HgNebraska Tractor Test
PTO Power
113.72HP
Sound
89dB(A)
NTTLTest #1440
May 26 to June 7, 1982 Temperature °F (°C) Fuel Consumption Power Crank Barometer Air Air shaft Hp inch HgNebraska Tractor Test
PTO Power
113.72HP
Sound
89dB(A)