- Rigid chassis
- WhichTractor size: Standard-size
- No lab test on file
- 1981–1985
- 2,572 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 3688 specs: hp, weight, years
INTERNATIONAL HARVESTER DT-436 six-cylinder diesel. The manufacturer claimed 113.5 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
113.5 hp
84.6 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “IHC 3688”, 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
- 13,201 lb
- Hyd. flow
- 18.0 gpm
- Top speed
- 19.9 mph
International Harvester 3688 specs: key facts
The International Harvester 3688 was built from 1981 to 1985.
The International Harvester 3688 has a claimed engine power (gross or net not stated) of 84.6 kW (113.5 hp); it has no measured PTO figure.
The International Harvester 3688 was offered in two-wheel-drive and four-wheel-drive versions.
The International Harvester 3688 has a INTERNATIONAL HARVESTER DT-436 engine, a 6-cylinder 7.14 L diesel unit.Source 1
The International Harvester 3688 weighs 5,988 kg (13,201 lb) unladen.
The International Harvester 3688 has a rear PTO running at 540/1000 rpm.
The hydraulic pump of the International Harvester 3688 delivers 68.1 L/min (18.0 gpm).
Source · Traktorenlexikon, “IHC 3688”
How does the 3688 compare with its class?
- Worth knowing:
An unladen mass of 5,988 kg is high for its class — 20% above the median of 4,985 kg across the 287 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 287 tractors within 10% of its power, 10% carry one.
Derived by WhichTractor from 287 comparable records. How we work this out
How much horsepower does a 3688 have?
The only figure for the 3688 is 113.5 hp (84.6 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “IHC 3688”
What engine is in a 3688?
A 3688 has an INTERNATIONAL HARVESTER DT-436, a 6-cylinder 7.14 L diesel engine.
| Make & model | INTERNATIONAL HARVESTER DT-436 |
|---|---|
| Cylinders | 6, liquid-cooledSource 2 |
| Displacement | 435.6 ci · 7.14 L |
| Electrical system | 12 VSource 2 |
Source · Traktorenlexikon, “IHC 1466”
How much will a 3688 lift, and what is its hydraulic flow?
Hydraulic and PTO specifications for the 3688 are below.
| Pump flow | 18.0 gpm · 68.1 L/min |
|---|---|
| Hitch category | Category 2 |
| Rear PTO | 540/1000 rpm @ 2,106 engine rpm |
Source · Traktorenlexikon, “IHC 3688”
What transmission does a 3688 have?
Transmission specifications for the 3688 are below.
| Steering | Hydraulic steering and adjustable steering wheel |
|---|---|
| Top speed | 19.9 mph · 32 km/h |
Source · Traktorenlexikon, “IHC 3688”
How much does a 3688 weigh?
A 3688 weighs 13,201 lb (5,988 kg) unladen.
| Unladen weight | 13,201 lb · 5,988 kg |
|---|---|
| Wheelbase | 104.8 in · 2,662 mm |
| Length | 184.0 in · 4,674 mm |
| Width | 102.0 in · 2,591 mm |
| Height | 112.0 in · 2,845 mm |
| Ground clearance | 13.0 in · 330 mm |
| Front track | 60.0–84.0 in · 1,524–2,134 mm |
| Rear track | 66.0–128.5 in · 1,676–3,264 mm |
| Turning radius, braked | 11.7 ft · 3.58 m |
Source · Traktorenlexikon, “IHC 3688”
What oil does a 3688 take, and how much?
A 3688 engine takes 13.9 qt (13.2 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 13.9 qt · 13.2 LSource: Traktorenlexikon, “IHC 3688” · single source, not independently verified |
| Transmission & hydraulic | 90.0 qt · 85.2 LSource: Traktorenlexikon, “IHC 3688” · single source, not independently verified |
| Cooling system | 26.0 qt · 24.6 LSource: Traktorenlexikon, “IHC 3688” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
Which tractors compare with a 3688?
Within 10% of its 112.4 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 Farmall 1066112.1 hp PTO, claimed · 1971–1976Side by side with the 3688 →
- IMT 5130/5136112.9 hp PTO, claimed · 1982–1992Side by side with the 3688 →
- International Harvester 1256113.3 hp PTO, claimed · 1967–1969Side by side with the 3688 →
- International Harvester Farmall 1256113.3 hp PTO, claimed · 1967–1969Side by side with the 3688 →
- International Harvester 1246113.9 hp PTO, claimed · 1972–1979Side by side with the 3688 →
- Massey Ferguson 1114111.0 hp PTO, claimed · 1978–1990Side by side with the 3688 →
Common questions about the International Harvester 3688
Is a 3688 two-wheel drive or four-wheel drive?
The International Harvester 3688 was offered in two-wheel-drive and four-wheel-drive versions.
What PTO does a 3688 have?
A 3688 has a 540/1000 rpm rear PTO.
Sources and how this page was built
Compiled from Traktorenlexikon, “IHC 1466”; and Traktorenlexikon, “IHC 3688”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: IHC 1466 — CC BY-SA 4.0, WIKIBOOKS-TL-118879 · revision 1055412. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: IHC 3688 — CC BY-SA 4.0, WIKIBOOKS-TL-119115 · revision 1036842. Wikibooks contributors (Traktorenlexikon). Original document