- Vehicle type: unspecified
- Rigid chassis
- WhichTractor size: Standard-size
- No lab test on file
- 1956–1958
- 1,795 built
It sits on the standard-size/high-power boundary, so either size is a fair description. It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category
We looked and the record does not say what this machine is. How we decide what a machine is
International Harvester W-450 specs: hp, weight, years
INTERNATIONAL HARVESTER C-281 four-cylinder. The manufacturer claimed 51.2 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
51.2 hp
38.2 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “IHC International W-450”, 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
- 5,721 lb
- Top speed
- 16.2 mph
International Harvester W-450 specs: key facts
The International Harvester W-450 was built from 1956 to 1958.
The International Harvester W-450 has a claimed engine power (gross or net not stated) of 38.2 kW (51.2 hp); it has no measured PTO figure.
The International Harvester W-450 is two-wheel drive (2WD).
The International Harvester W-450 has a INTERNATIONAL HARVESTER C-281 engine, a 4-cylinder 4.60 L unit.Source 1
The International Harvester W-450 weighs 2,595 kg (5,721 lb) unladen.
The International Harvester W-450 has a rear PTO running at 539 rpm.
Source · Traktorenlexikon, “IHC International W-450”
How does the W-450 compare with its class?
- Limitation:
Five forward gears is low for its class — 38% below the median of 8 across the 312 machines within 10% of its power that hold this figure.
Derived by WhichTractor from 317 comparable records. How we work this out
How much horsepower does a W-450 have?
The only figure for the W-450 is 51.2 hp (38.2 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “IHC International W-450”
What engine is in a W-450?
A W-450 has an INTERNATIONAL HARVESTER C-281, a 4-cylinder 4.60 L engine.
| Make & model | INTERNATIONAL HARVESTER C-281 |
|---|---|
| Cylinders | 4, liquid-cooledSource 2 |
| Displacement | 280.6 ci · 4.60 L |
Source · Traktorenlexikon, “IHC Farmall 450”
How much will a W-450 lift?
Hydraulic and PTO specifications for the W-450 are below.
| Rear PTO | 539 rpm |
|---|---|
| PTO shaft | 1 1/8"- 6 splines |
Source · Traktorenlexikon, “IHC International W-450”
What transmission does a W-450 have?
Transmission specifications for the W-450 are below.
| Clutch | Pedal-actuated dry single-plate clutch |
|---|---|
| Brakes | Pedal-actuated disc brakes acting on differential side shafts |
| Steering | Mechanical gear steering |
| Top speed | 16.2 mph · 26 km/h |
Source · Traktorenlexikon, “IHC International W-450”
How much does a W-450 weigh?
A W-450 weighs 5,721 lb (2,595 kg) unladen.
| Unladen weight | 5,721 lb · 2,595 kg |
|---|---|
| Wheelbase | 82.0 in · 2,083 mm |
| Length | 130.0 in · 3,302 mm |
| Width | 75.7 in · 1,924 mm |
| Height | 93.4 in · 2,372 mm |
| Front track | 50.7 in · 1,289 mm |
| Rear track | 60.2 in · 1,530 mm |
| Turning radius, braked | 12.5 ft · 3.80 m |
Source · Traktorenlexikon, “IHC International W-450”
What oil does a W-450 take, and how much?
A W-450 engine takes 8.0 qt (7.6 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 8.0 qt · 7.6 LSource: Traktorenlexikon, “IHC International W-450” · single source, not independently verified |
| Cooling system | 28.0 qt · 26.5 LSource: Traktorenlexikon, “IHC International W-450” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
Which tractors compare with a W-450?
Within 10% of its 51.2 hp of claimed engine power, the same type, and first built within 15 years of it.
- International Harvester Farmall 45051.2 hp engine, claimed · 1956–1958Side by side with the W-450 →
- Fordson County Super IV51.2 hp engine, claimed · 1960–1964Side by side with the W-450 →
- Ford 4000 (A) 6X/6Y51.2 hp engine, claimed · 1964–1975Side by side with the W-450 →
- SOMECA 615 (DT)51.2 hp engine, claimed · 1965–1968Side by side with the W-450 →
- Fiat 550 (DT)51.2 hp engine, claimed · 1968–1978Side by side with the W-450 →
- International Harvester 54451.2 hp engine, claimed · 1968–1973Side by side with the W-450 →
Common questions about the International Harvester W-450
Is a W-450 two-wheel drive or four-wheel drive?
The International Harvester W-450 is two-wheel drive (2WD).
What PTO does a W-450 have?
A W-450 has a 539 rpm rear PTO on a 1 1/8"- 6 splines shaft.
What serial numbers does a W-450 carry?
The source lists them year by year, from 501 in 1956 to 2295 in 1958. 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, “IHC Farmall 450”; and Traktorenlexikon, “IHC International W-450”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: IHC Farmall 450 — CC BY-SA 4.0, WIKIBOOKS-TL-118376 · revision 1055544. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: IHC International W-450 — CC BY-SA 4.0, WIKIBOOKS-TL-118437 · revision 1031604. Wikibooks contributors (Traktorenlexikon). Original document