- WhichTractor size: Utility
- No lab test on file
- 1953–1956
- 8,652 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 DED (3) specs: hp, weight, years
IHC DD 99 three-cylinder diesel or INTERNATIONAL-HARVESTER DD-99 diesel. The manufacturer claimed 19.7 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
19.7 hp
14.7 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “McCormick DED 3”, 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
- 2,712 lb
- 3-point lift
- 1,102 lb
- Hyd. flow
- 5.5 gpm
- Top speed
- 12.9 mph
International Harvester DED (3) specs: key facts
The International Harvester DED (3) was built from 1953 to 1956.
The International Harvester DED (3) has a claimed engine power (gross or net not stated) of 14.7 kW (19.7 hp); it has no measured PTO figure.Source 2
The International Harvester DED (3) is two-wheel drive (2WD).Source 2
The International Harvester DED (3) has a IHC DD 99 engine, a 3-cylinder 1.63 L diesel unit.
The International Harvester DED (3) weighs 1,230 kg (2,712 lb) unladen.
The International Harvester DED (3) has a dependent rear PTO running at 531 rpm.Source 2
The three-point hitch of the International Harvester DED (3) lifts 500 kg (1,102 lb) at the lower-link ends.
The hydraulic pump of the International Harvester DED (3) delivers 21.0 L/min (5.5 gpm).
Source · Traktorenlexikon, “IHC DED 3”

How much horsepower does a DED (3) have?
The only figure for the DED (3) is 19.7 hp (14.7 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “McCormick DED 3”
What engine is in a DED (3)?
A DED (3) has an IHC DD 99, a 3-cylinder 1.63 L diesel engine. Diesel tractors have a INTERNATIONAL-HARVESTER DD-99.
| Make & model | IHC DD 99 |
|---|---|
| Cylinders | 3, liquid-cooledSource 2 |
| Displacement | 99.5 ci · 1.63 L |
| Max torque | 60 lb·ft · 81 N·m |
| Electrical system | 12 V |
Source · Traktorenlexikon, “IHC DED 3”
How much will a DED (3) lift, and what is its hydraulic flow?
A DED (3) lifts 1,102 lb (500 kg) at the lower-link ends of its Category 1 three-point hitch.
| Pump flow | 5.5 gpm · 21.0 L/min |
|---|---|
| Hitch category | Category 1Source 2 |
| Lift at ends | 1,102 lb · 500 kg |
| Rear PTO | Dependent, transmission-driven, 531 rpmSource 2 |
Source · Traktorenlexikon, “IHC DED 3”
What transmission does a DED (3) have?
Transmission specifications for the DED (3) are below.
| Clutch | Single dry clutch from Fichtel & SachsSources disagreePedal-operated dry single-plate clutch (Traktorenlexikon, “McCormick DED 3”) |
|---|---|
| Steering | Mechanical worm steeringSource 2Sources disagreeIndividual wheel steering (Traktorenlexikon, “IHC DED 3”) |
| Top speed | 12.9 mph · 20.7 km/h |
Source · Traktorenlexikon, “IHC DED 3”
How much does a DED (3) weigh?
A DED (3) weighs 2,712 lb (1,230 kg) unladen.
| Unladen weight | 2,712 lb · 1,230 kg |
|---|---|
| Wheelbase | 66.0 in · 1,676 mm |
| Length | 107.6 in · 2,732 mmSource 2 |
| Width | 64.2 in · 1,630 mm |
| Height | 62.4 in · 1,585 mm |
| Ground clearance | 15.6 in · 395 mm |
| Front track | 49.2–80.7 in · 1,250–2,050 mm |
| Rear track | 49.2–74.8 in · 1,250–1,900 mmSource 2 |
| Turning radius, braked | 8.7 ft · 2.65 m |
Source · Traktorenlexikon, “IHC DED 3”
What oil does a DED (3) take, and how much?
A DED (3) engine takes 4.4 qt (4.2 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 4.4 qt · 4.2 LSource: Traktorenlexikon, “IHC DED 3” · single source, not independently verified |
| Transmission | 25.4 qt · 24 LSource: Traktorenlexikon, “IHC DED 3” · single source, not independently verified |
| Hydraulic | 5.8 qt · 5.5 LSource: Traktorenlexikon, “IHC DED 3” · single source, not independently verified |
| Cooling system | 10.6 qt · 10 LSource: Traktorenlexikon, “IHC DED 3” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
Which tractors compare with a DED (3)?
Within 10% of its 18.8 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.
- Deutz D 2519 hp PTO, claimed · 1959Side by side with the DED (3) →
- Güldner A 2 DL19 hp PTO, claimed · 1959–1961Side by side with the DED (3) →
- Güldner A 2 L (Tessin)19 hp PTO, claimed · 1959–1962Side by side with the DED (3) →
- Güldner A 2D19 hp PTO, claimed · 1959–1960Side by side with the DED (3) →
- Deutz D 25.119 hp PTO, claimed · 1960Side by side with the DED (3) →
- Güldner AL19 hp PTO, claimed · 1962Side by side with the DED (3) →
Common questions about the International Harvester DED (3)
Is a DED (3) two-wheel drive or four-wheel drive?
The International Harvester DED (3) is two-wheel drive (2WD).
What PTO does a DED (3) have?
A DED (3) has a dependent 531 rpm rear PTO.
What serial numbers does a DED (3) carry?
The source prints serial numbers NT 60.001 to NT 68.652. It also records 1 change by serial number. It does not say whether that is the tractor’s or the engine’s number, and we never work out a year from a serial number.
Sources and how this page was built
Compiled from Traktorenlexikon, “McCormick DED 3”; and Traktorenlexikon, “IHC DED 3”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: IHC DED 3 — CC BY-SA 4.0, WIKIBOOKS-TL-44137 · revision 1072220. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: McCormick DED 3 — CC BY-SA 4.0, WIKIBOOKS-TL-41176 · revision 1022332. Wikibooks contributors (Traktorenlexikon). Original document