- Rigid chassis
- WhichTractor size: Utility
- Not independently tested
- 1962–1966
- 17,627 built
It was ranked on an engine power figure whose source does not say gross or net. 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 D-439 Full specifications
INTERNATIONAL-HARVESTER DD-148 four-cylinder diesel. The manufacturer claimed 38.5 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
38.5 hp
28.7 kW as stated by the source
Not independently tested
Claimed · standard not stated by the source
Source · Traktorenlexikon, “McCormick D-439”, claimed
- Weight
- 3,876 lb
- 3-point lift
- 1,984 lb
- Hyd. flow
- 6.3 gpm
- Top speed
- 12.4 mph
International Harvester D-439 specs: key facts
The International Harvester D-439 was built from 1962 to 1966.
The International Harvester D-439 has a claimed engine power (gross or net not stated) of 28.7 kW (38.5 hp); it has no measured PTO figure.
The International Harvester D-439 is two-wheel drive (2WD).
The International Harvester D-439 has a INTERNATIONAL-HARVESTER DD-148 engine, a 4-cylinder 2.43 L diesel unit.Source 1
The International Harvester D-439 weighs 1,758 kg (3,876 lb) unladen.
The International Harvester D-439 has an independent rear PTO running at 540 rpm.
The three-point hitch of the International Harvester D-439 lifts 900 kg (1,984 lb) at the lower-link ends.
The hydraulic pump of the International Harvester D-439 delivers 24.0 L/min (6.3 gpm).
Source · Traktorenlexikon, “McCormick D-439”
How much horsepower does a D-439 have?
The only figure for the D-439 is 38.5 hp (28.7 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “McCormick D-439”
What engine is in a D-439?
A D-439 has an INTERNATIONAL-HARVESTER DD-148, a 4-cylinder 2.43 L diesel engine.
| Make & model | INTERNATIONAL-HARVESTER DD-148 |
|---|---|
| Cylinders | 4, liquid-cooledSource 2 |
| Displacement | 148.5 ci · 2.43 L |
| Max torque | 98 lb·ft · 133 N·m @ 1,235 rpmSource 2 |
| Electrical system | 12 VSource 2 |
Source · Traktorenlexikon, “McCormick D-436 Standard”
How much will a D-439 lift, and what is its hydraulic flow?
A D-439 lifts 1,984 lb (900 kg) at the lower-link ends.
| Pump flow | 6.3 gpm · 24.0 L/min |
|---|---|
| Pressure | 2,119 psi · 146 bar |
| Lift at ends | 1,984 lb · 900 kg |
| Rear PTO | Independent, engine-driven, 540 rpm |
| PTO shaft | 1 3/8"- 6 splines |
Source · Traktorenlexikon, “McCormick D-439”
What transmission does a D-439 have?
Transmission specifications for the D-439 are below.
| Clutch | Pedal operated dry single plate clutch from Fichtel & Sachs |
|---|---|
| Brakes | Pedal operated International Harvester disc brake acting on differential side shafts |
| Steering | Mechanically operated ZF-Gemmer steering |
| Top speed | 12.4 mph · 20 km/h |
Source · Traktorenlexikon, “McCormick D-439”
How much does a D-439 weigh?
A D-439 weighs 3,876 lb (1,758 kg) unladen.
| Unladen weight | 3,876 lb · 1,758 kg |
|---|---|
| Wheelbase | 74.0 in · 1,880 mm |
| Length | 115.4 in · 2,930 mm |
| Width | 64.6 in · 1,640 mm |
| Height | 61.0 in · 1,550 mm |
| Ground clearance | 15.0 in · 380 mm |
| Front track | 49.2–59.1 in · 1,250–1,500 mmthe article lists alternatives |
| Rear track | 49.2–74.4 in · 1,250–1,890 mm |
| Turning radius, braked | 8.9 ft · 2.70 m |
Source · Traktorenlexikon, “McCormick D-439”
Which tractors compare with a D-439?
Within 10% of its 38.5 hp of claimed engine power, the same type, and first built within 15 years of it.
- SOMECA SOM-411/B38.5 hp engine, claimed · 1964–1965Side by side with the D-439 →
- Lamborghini R-240 (DT)38.5 hp engine, claimed · 1970–1973Side by side with the D-439 →
- BOLINDER-MUNKTELL BM-3238.5 hp engine, claimed · 1950–1957Side by side with the D-439 →
- Volvo T-3238.5 hp engine, claimed · 1950–1957Side by side with the D-439 →
- Nuffield M-338.0 hp engine, claimed · 1948–1954Side by side with the D-439 →
- Nuffield M-438.0 hp engine, claimed · 1948–1957Side by side with the D-439 →
Everything else people ask
Is a D-439 two-wheel drive or four-wheel drive?
The International Harvester D-439 is two-wheel drive (2WD).
What PTO does a D-439 have?
A D-439 has a independent 540 rpm rear PTO on a 1 3/8"- 6 splines shaft.
What serial numbers does a D-439 carry?
The source prints serial numbers NT 400.001 to NT 417.627. It also records 2 changes 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.
Where this page comes from
Compiled from Traktorenlexikon, “McCormick D-436 Standard”; and Traktorenlexikon, “McCormick D-439”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: McCormick D-436 Standard — CC BY-SA 4.0, WIKIBOOKS-TL-118058 · revision 1056724. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: McCormick D-439 — CC BY-SA 4.0, WIKIBOOKS-TL-118066 · revision 1056725. Wikibooks contributors (Traktorenlexikon). Original document