International Harvester 3788
| | 1980 - 1981 |
| 30 2+2 Series | | Four-wheel Drive (4WD) tractor |
|
Series map:
3588
3788
167.1hp*
189.5hp*
*Estimated engine power for comparison only.
| Production |
| Manufacturer | International Harvester
|
| Four-wheel Drive (4WD) tractor |
| Total built | 2,496
|
| Original price was $57,000 in 1981 |
| International Harvester 3788 Power |
| Drawbar (claimed) | 146 hp
108.9 kW
|
| PTO (claimed) | 170.57 hp
127.2 kW
|
| Drawbar (tested) | 142.05 hp
105.9 kW
|
| PTO (tested) | 170.57 hp
127.2 kW
|
 Performance test details ... |
| Mechanical |
| Four-wheel drive |
| Steering | hydrostatic power
|
| Hydraulic wet disc brakes |
| Cab standard |
| Hydraulics |
| Type | closed center
|
| Valves | 2
|
| Pump flow | 12 gpm
45.4 lpm
|
| Tractor hitch |
| Rear Type | III
|
| Power Take-off (PTO) |
| Rear PTO | independent
|
| Rear PTO Type | 1000
|
| Engine RPM | 1000@2100
|
| Electrical |
| Ground | negative
|
| Charging system | alternator
|
| Charging amps | 72
|
| | 100 OptOptional
|
| Batteries | 2
|
| Battery volts | 12
|
| References |
 |
| Snoopy and the Spy by Lee Klancher |
| 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 |
| Page information |
 |
| Copyright 2026 TractorData.com® |
| Email me: Peter@TractorData.com |
| TractorData is a family-owned small business located in Minnesota. I have been researching tractor history and providing specifications for free since 1999. |
| Peter Easterlund - owner/author |
| This machine's data modified on May 20, 2026 |
©2000-2026 - TractorData.com®. Notice: Every attempt is made to ensure the data listed
is accurate. However, differences between sources, incomplete listings,
errors, and data entry mistakes do occur.
Consult official
literature from the manufacturer before attempting any service or repair.
Engine details ...
Transmission details ...
Full dimensions and tires ...