The International Harvester 504 is a 2WD utility tractor manufactured by International Harvester from 1961 to 1968.
The International Harvester 504 is equipped with one of two engines: a 3.1 L (187.5 cu·in) four-cylinder diesel engine or a 2.5 L (152.1 cu·in) four-cylinder gasoline engine and one of two transmissions: an unsynchronized gear transmission with 5 forward and 1 reverse gear or a two-speed power shift transmission with 10 forward and 2 reverse gears.
The tractor could be equipped with the following engines:
- International Harvester D188. It is a 3.1 L, 3,073 cm2, (187.5 cu·in) four-cylinder natural aspirated diesel engine with 94.0 mm (3.7 in) of the cylinder bore and 112.0 mm (4.41 in) of the piston stroke. The compression ratio rating is 18.7:1.
- International Harvester C153. It is a 2.5 L, 2,492 cm2, (152.1 cu·in) four-cylinder natural aspirated gasoline engine. The cylinder bore is 86.0 mm (3.39 in) and the piston stroke is 108.0 mm (4.25 in).
International Harvester 504 Specifications
| General Specifications | |
| Model | International Harvester 504 |
| Length | – |
| Width | – |
| Height | – |
| Wheel base | – |
| Ground clearance | – |
| Weight | 2,020 kg (4,453 lbs) |
| Fuel tank capacity | – |
| Battery | 12V |
| Cabin type | Open operator station |
| Engine | |
| Engine model | International Harvester D188 |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Diesel |
| Displacement | 3.1 L, 3,073 cm2, (187.5 cu·in) |
| Bore and stroke | 94.0 mm X 112.0 mm (3.7 in X 4.41 in) |
| Compression ratio | 18.7:1 |
| Horsepower | – |
| Starter | Electric |
| Engine | |
| Engine model | International Harvester C153 |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Gasoline |
| Displacement | 2.5 L, 2,492 cm2, (152.1 cu·in) |
| Bore and stroke | 86.0 mm X 108.0 mm (3.39 in X 4.25 in) |
| Horsepower | – |
| Starter | Electric |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Power |
| Brakes | – |
| Transmission model | – |
| Transmission type | Unsynchronized gear |
| Gears | 5 forward and 1 reverse |
| Transmission model | Torque Amplifier |
| Transmission type | Two-speed power shift |
| Gears | 10 forward and 2 reverse |
| Tires | |
| Front tires | Ag: 6.00-16 |
| Rear tires | Ag: 12.4-28 |
| Three-Point Hitch | |
| Category | I |
| Control type | – |
| Lift capacity (at ends) | – |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent |
| Rear PTO speed | 540 rpm |
| Hydraulic system | |
| Hydraulic type | – |
| Pump flow | 12.0 gpm (45.4 lpm) |