- WhichTractor size: High-power
- No lab test on file
- 1979–1981
- 2,496 built
WhichTractor size, not the maker’s category
Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is
International Harvester 3788 specs: hp, weight, years
INTERNATIONAL HARVESTER DT-466 B six-cylinder diesel. The manufacturer claimed 170.6 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
170.6 hp
127.2 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “IHC 3788”, claimed
This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.
- Weight
- 18,620 lb
- 3-point lift
- 8,598 lb
- Hyd. flow
- 12.0 gpm
- Top speed
- 18.6 mph
International Harvester 3788 specs: key facts
The International Harvester 3788 was built from 1979 to 1981.
The International Harvester 3788 has a claimed engine power (gross or net not stated) of 127.2 kW (170.6 hp); it has no measured PTO figure.
The International Harvester 3788 is four-wheel drive (4WD).
The International Harvester 3788 has a INTERNATIONAL HARVESTER DT-466 B engine, a 6-cylinder 7.64 L diesel unit.Source 1
The International Harvester 3788 weighs 8,446 kg (18,620 lb) unladen.
The International Harvester 3788 has a rear PTO running at 1000 rpm.
The three-point hitch of the International Harvester 3788 lifts 3,900 kg (8,598 lb) at the lower-link ends.
The hydraulic pump of the International Harvester 3788 delivers 45.4 L/min (12.0 gpm).
Source · Traktorenlexikon, “IHC 3788”
How does the 3788 compare with its class?
- Limitation:
A hydraulic pump flow of 45.4 L/min is low for its class — 52% below the median of 94.6 L/min across the 113 machines within 10% of its power that hold this figure.
- Limitation:
Twelve forward gears is low for its class — 33% below the median of 18 across the 137 machines within 10% of its power that hold this figure.
- Worth knowing:
An unladen mass of 8,446 kg is high for its class — 24% above the median of 6,835 kg across the 149 machines within 10% of its power that hold this figure.
- Limitation:
The power figure is a manufacturer claim, not a measurement. No laboratory test report exists for this machine. Of the 149 tractors within 10% of its power, 10% carry one.
Derived by WhichTractor from 149 comparable records. How we work this out
How much horsepower does a 3788 have?
The only figure for the 3788 is 170.6 hp (127.2 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “IHC 3788”
What engine is in a 3788?
A 3788 has an INTERNATIONAL HARVESTER DT-466 B, a 6-cylinder 7.64 L diesel engine.
| Make & model | INTERNATIONAL HARVESTER DT-466 B |
|---|---|
| Cylinders | 6, liquid-cooledSource 2 |
| Displacement | 466.2 ci · 7.64 L |
| Electrical system | 12 VSource 2 |
Source · Traktorenlexikon, “IHC 3588”
How much will a 3788 lift, and what is its hydraulic flow?
A 3788 lifts 8,598 lb (3,900 kg) at the lower-link ends.
| Pump flow | 12.0 gpm · 45.4 L/min |
|---|---|
| Lift at ends | 8,598 lb · 3,900 kg |
| Rear PTO | 1000 rpm |
| PTO shaft | 1 3/8"- 6 splines or 1 3/4"- 20-piece |
Source · Traktorenlexikon, “IHC 3788”
What transmission does a 3788 have?
Transmission specifications for the 3788 are below.
| Brakes | Electrically operated wet disc brakes acting on differential side shafts |
|---|---|
| Steering | Hydraulic steering and adjustable steering wheel |
| Top speed | 18.6 mph · 30 km/h |
Source · Traktorenlexikon, “IHC 3788”
How much does a 3788 weigh?
A 3788 weighs 18,620 lb (8,446 kg) unladen.
| Unladen weight | 18,620 lb · 8,446 kg |
|---|---|
| Wheelbase | 110.0 in · 2,794 mm |
| Length | 228.0 in · 5,791 mm |
| Width | 101.6 in · 2,581 mm |
| Height | 115.8 in · 2,941 mm |
| Ground clearance | 23.2 in · 589 mm |
| Front track | 62.4–115.0 in · 1,585–2,921 mmWikibooks gives one track for both axles |
| Rear track | 62.4–115.0 in · 1,585–2,921 mmWikibooks gives one track for both axles |
Source · Traktorenlexikon, “IHC 3788”
What oil does a 3788 take, and how much?
A 3788 engine takes 15.6 qt (14.8 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 15.6 qt · 14.8 LSource: Traktorenlexikon, “IHC 3788” · single source, not independently verified |
| Transmission & hydraulic | 94.5 qt · 89.4 LSource: Traktorenlexikon, “IHC 3788” · single source, not independently verified |
| Cooling system | 34.0 qt · 32.2 LSource: Traktorenlexikon, “IHC 3788” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
Which tractors compare with a 3788?
Within 10% of its 166.4 hp at the PTO as the maker claimed it, with no laboratory test on file, the same type, and first built within 15 years of it.
- International Harvester 6788166.4 hp PTO, claimed · 1981–1984Side by side with the 3788 →
- International Harvester 1566162.3 hp PTO, claimed · 1974–1976Side by side with the 3788 →
- Massey Ferguson 1505172.1 hp PTO, claimed · 1975–1977Side by side with the 3788 →
- J.I. Case 2470174.2 hp PTO, claimed · 1971–1978Side by side with the 3788 →
- International Harvester 1586156.1 hp PTO, claimed · 1976–1981Side by side with the 3788 →
- International Harvester 4166152.7 hp PTO, claimed · 1972–1976Side by side with the 3788 →
Common questions about the International Harvester 3788
Is a 3788 two-wheel drive or four-wheel drive?
The International Harvester 3788 is four-wheel drive (4WD).
What PTO does a 3788 have?
A 3788 has a 1000 rpm rear PTO on a 1 3/8"- 6 splines or 1 3/4"- 20-piece shaft.
Sources and how this page was built
Compiled from Traktorenlexikon, “IHC 3588”; and Traktorenlexikon, “IHC 3788”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: IHC 3588 — CC BY-SA 4.0, WIKIBOOKS-TL-119176 · revision 1037669. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: IHC 3788 — CC BY-SA 4.0, WIKIBOOKS-TL-119177 · revision 1055418. Wikibooks contributors (Traktorenlexikon). Original document