- WhichTractor size: Standard-size
- Not independently tested
- 1971–1976
- 54,947 built
It sits on the standard-size/high-power boundary, so either size is a fair description. 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 Farmall 1066 Full specifications
INTERNATIONAL HARVESTER DT-414 six-cylinder diesel. The manufacturer claimed 115.5 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
115.5 hp
86.1 kW as stated by the source
Not independently tested
Claimed · standard not stated by the source
Source · Traktorenlexikon, “IHC 1066”, claimed
- Weight
- 12,145 lb
- 3-point lift
- 5,798 lb
- Hyd. flow
- 12.0 gpm
- Top speed
- 18.6 mph
International Harvester Farmall 1066 specs: key facts
The International Harvester Farmall 1066 was built from 1971 to 1976.Source 1
The International Harvester Farmall 1066 has a claimed engine power (gross or net not stated) of 86.1 kW (115.5 hp); it has no measured PTO figure.
The International Harvester Farmall 1066 is two-wheel drive (2WD).Source 1
The International Harvester Farmall 1066 has a INTERNATIONAL HARVESTER DT-414 engine, a 6-cylinder 6.78 L diesel unit.
The International Harvester Farmall 1066 weighs 5,509 kg (12,145 lb) unladen.
The International Harvester Farmall 1066 has a rear PTO running at 540/1000 rpm.
The three-point hitch of the International Harvester Farmall 1066 lifts 2,630 kg (5,798 lb) at the lower-link ends.Source 1
The hydraulic pump of the International Harvester Farmall 1066 delivers 45.5 L/min (12.0 gpm).Source 1
Source · Traktorenlexikon, “IHC 1066”

How much horsepower does a Farmall 1066 have?
The only figure for the Farmall 1066 is 115.5 hp (86.1 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “IHC 1066”
What engine is in a Farmall 1066?
A Farmall 1066 has an INTERNATIONAL HARVESTER DT-414, a 6-cylinder 6.78 L diesel engine.
| Make & model | INTERNATIONAL HARVESTER DT-414 |
|---|---|
| Cylinders | 6, liquid-cooledSource 1 |
| Displacement | 413.9 ci · 6.78 L |
| Electrical system | 12 V |
Source · Traktorenlexikon, “IHC 1066”
How much will a Farmall 1066 lift, and what is its hydraulic flow?
A Farmall 1066 lifts 5,798 lb (2,630 kg) at the lower-link ends.
| Pump flow | 12.0 gpm · 45.5 L/min |
|---|---|
| Lift at ends | 5,798 lb · 2,630 kg |
| Rear PTO | 540/1000 rpm @ 2,100 engine rpmSource 2 |
Source · Traktorenlexikon, “Farmall Farmall 1066”
What transmission does a Farmall 1066 have?
Transmission specifications for the Farmall 1066 are below.
| Top speed | 18.6 mph · 30 km/h |
|---|
Source · Traktorenlexikon, “IHC 1066”
How much does a Farmall 1066 weigh?
A Farmall 1066 weighs 12,145 lb (5,509 kg) unladen.
| Unladen weight | 12,145 lb · 5,509 kg |
|---|---|
| Wheelbase | 104.8 in · 2,662 mmSource 1 |
| Length | 165.0 in · 4,191 mmSource 1 |
| Width | 98.0 in · 2,489 mmSource 1 |
| Height | 111.0 in · 2,819 mm |
| Ground clearance | 16.0 in · 406 mm |
| Front track | 62.0–86.0 in · 1,575–2,184 mm |
| Rear track | 60.0–94.0 in · 1,524–2,388 mmSource 1 |
| Turning radius, braked | 12.0 ft · 3.66 m |
Source · Traktorenlexikon, “IHC 1066”
Which tractors compare with a Farmall 1066?
Within 10% of its 112.1 hp at the PTO (claimed), the same type, and first built within 15 years of it.
- International Harvester 3688112.4 hp PTO, claimed · 1981–1985Side by side with the Farmall 1066 →
- Renault 145-14 TX112.8 hp PTO, claimed · 1981–1986Side by side with the Farmall 1066 →
- IMT 5130/5136112.9 hp PTO, claimed · 1982–1992Side by side with the Farmall 1066 →
- Fiat 1280 (DT)111.3 hp PTO, claimed · 1979–1984Side by side with the Farmall 1066 →
- International Harvester 1256113.3 hp PTO, claimed · 1967–1969Side by side with the Farmall 1066 →
- Massey Ferguson MF 1114111.0 hp PTO, claimed · 1978–1990Side by side with the Farmall 1066 →
Everything else people ask
Is a Farmall 1066 two-wheel drive or four-wheel drive?
The International Harvester Farmall 1066 is two-wheel drive (2WD).
What PTO does a Farmall 1066 have?
A Farmall 1066 has a 540/1000 rpm rear PTO.
Where this page comes from
Compiled from Traktorenlexikon, “IHC 1066”; and Traktorenlexikon, “Farmall Farmall 1066”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: Farmall Farmall 1066 — CC BY-SA 4.0, WIKIBOOKS-TL-118877 · revision 1054932. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: IHC 1066 — CC BY-SA 4.0, WIKIBOOKS-TL-118876 · revision 1055406. Wikibooks contributors (Traktorenlexikon). Original document