International Harvester 3788 Specs ( 1980-1981 )
Production
| Description | Original price was $57,000 in 1981 |
|---|---|
| Drive type | Four-wheel Drive (4WD) tractor |
| Manufacturer | International Harvester |
| Total built | 2,496 |
Engine
| Engine type | International Harvester 7.6L 6-cyl diesel |
|---|---|
| Fuel tank | 90 gal (340.7 L) |
| Bore/Stroke | 4.30x5.35 inches (109 x 136 mm) |
| Coolant capacity | 34 qts (32.2 L) |
| Description | International Harvester DT-466B / turbocharged diesel / 6-cylinder / liquid-cooled |
| Displacement | 466 ci (7.6 L) |
| Idle RPM | 780-2750 |
| Oil capacity | 20 qts (18.9 L) |
| Rated RPM | 2500 |
| Starter volts | 12 |
| Drawbar (claimed) | 146 hp (108.9 kW) |
| Drawbar (tested) | 142.05 hp (105.9 kW) |
| PTO (claimed) | 170.57 hp (127.2 kW) |
| PTO (tested) | 170.57 hp (127.2 kW) |
Transmission
| Clutch | 356mm hydraulic dry disc |
|---|---|
| Gears | 12 forward and 6 reverse |
| Transmission | Torque Amplifier |
| Transmission type | 12-speed two-range power shift |
| Type | two-range power shift |
Mechanical
| Cab | Cab standard |
|---|---|
| Description | Hydraulic wet disc brakes |
| Drive type | Four-wheel drive |
| Steering | hydrostatic power |
Hydraulics
| Pump flow | 12 gpm (45.4 lpm) |
|---|---|
| Type | closed center |
| Valves | 2 |
Hitch
| Rear Type | III |
|---|
PTO
| Engine RPM | 1000@2100 |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 1000 |
Electrical
| Batteries | 2 |
|---|---|
| Battery volts | 12 |
| Charging amps | 72 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Clearance (front axle) | 23.2 inches (58 cm) |
|---|---|
| Clearance (rear axle) | 26.7 inches (67 cm) |
| Height (cab) | 115.8 inches (294 cm) |
| Length | 228 inches (579 cm) |
| Wheelbase | 110 inches (279 cm) |
| Width | 101.6 inches (258 cm) |
| Front tire | 18.4-38 |
| Rear tire | 18.4-38 |
| Weight | 16520 to 18620 pounds |
| Wheelbase | 110 inches (279 cm) |
| Ag front | 18.4-38 |
| Ag rear | 18.4-38 |
3788 Serial Numbers
| 1980 | 8801 |
|---|---|
| 1981 | 10866 |
| Description | FAQ: How to read a serial number table. |
| Location: | Right side of tractor frame, by rear axle. |
International Harvester 3788 Weight
| Max capacity | 23500 lbs (10659 kg) |
|---|---|
| Operating | 18620 lbs (8446 kg) |
| Shipping | 16520 lbs (7493 kg) |
Nebraska Tractor Test 1377
| Description | Diesel 12-speed 4WDNovember 5 - 17, 1980Link: Nebraska Tractor Test 1377 file / PTO performance / Drawbar performance / Gear 3-Low-Direct used for power test. / Gear 1-Low-Direct used for pull test. |
|---|---|
| Fuel use | 10.9 gal/hour (41.3 l/hour) / 9.7 gal/hour (36.7 l/hour) / 10.7 gal/hour (40.5 l/hour) |
| Max power | 142.05 hp (105.9 kW) |
| Max pull | 19069 lbs (8649 kg) |
| Power at rated engine speed | 170.57 hp (127.2 kW) |
| Power at rated PTO speed | 166.39 hp (124.1 kW) |
References
| Description | Field Force published in 1981, by International Harvester / Buyer's Guide 1981 published by International Harvester / Operator's Manual 3388, 3588 and 3788 Tractors (1096188R3) published in 1979 |
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Speeds
| Description | With 18.4-38 rear tires. |
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