Introduction
International Harvester 423 Utility Tractor
The International Harvester 423 is a utility tractor manufactured in Neuss, Germany, between 1966 and 1975. Designed for versatility and reliability, this machine served as a core model for small to medium-sized agricultural operations during its production era.
Engine Specifications
The tractor is powered by the International Harvester D-155, a 3-cylinder liquid-cooled diesel engine. With a displacement of 154.8 cubic inches (2.5 liters) and a compression ratio of 16:1, it generates a gross power output of 40 hp (29.8 kW) and a net power of 38 hp (28.3 kW) at a rated speed of 1900 RPM. The engine utilizes a dry-type air cleaner for intake filtration.
Transmission and Drivetrain
The model features a two-wheel-drive configuration paired with a mechanical rear differential lock to improve traction in field conditions. The standard transmission offers 8 forward and 2 reverse gears, utilizing a 254mm dry disc clutch. An optional creeper transmission configuration is available, providing 12 forward and 3 reverse gears for tasks requiring lower operating speeds.
Hydraulics and PTO
Equipped with a rear Power Take-Off (PTO) operating at 540 RPM, the tractor supports a wide range of implements. The hydraulic system has a fluid capacity of 3.4 gallons (12.9 liters). The rear hitch is compatible with Category I and II implements, providing a rear lift capacity of 3,880 lbs (1,759 kg), suitable for standard agricultural tasks.
Dimensions and Chassis
The International Harvester 423 has a wheelbase of 75.6 inches (192 cm) and a total operating weight of 4,443 lbs (2,015 kg). The machine features a ground clearance of 15 inches (38 cm), with adjustable front and rear treads to accommodate various row spacings. The tractor is designed with a compact profile, measuring 121.6 inches in length and 64 inches in width.
Conclusion
The International Harvester 423 is a robust utility tractor suited for general field work and light to medium-duty agricultural applications. Its combination of a reliable 3-cylinder diesel engine, mechanical differential lock, and flexible gearing options makes it a practical machine for farmers and collectors focused on durability and ease of maintenance.
International Harvester 423 Manuals & Documentation
Download the manuals and documentation available for the International Harvester 423: repair and workshop manuals, operator's handbooks, spare-parts catalogs and technical leaflets — free PDF files.
Archive documentation provided for reference, hosted by Tractor-Info.
Production Information of International Harvester, 423
- Utility tractor
- Built in Neuss, Germany
| Manufacturer | International Harvester |
|---|
Dimension and Tires Information of International Harvester, 423
| Front tread | 48 to 73.2 inches [121 to 185 cm] |
|---|---|
| Wheelbase | 75.6 inches [192 cm] |
| Weight | 4443 lbs [2015 kg] |
| Height | 61 inches [154 cm] |
| Length | 121.6 inches [308 cm] |
| Rear tread | 50.4 to 74 inches [128 to 187 cm] |
| Ground clearance | 15 inches [38 cm] |
| Width | 64 inches [162 cm] |
| Ag front | 6.00-16 |
|---|---|
| Ag rear | 9-32 |
| Ag rear(optional) | 7.50-16 |
| Ag rear | 12.4/11-28 |
| Ag rear(optional) | 11-32 |
| Ag rear(optional) | 12-28 |
| Ag front | 5.50-16 |
| Ag front(optional) | 11-36 |
Engine Specifications of International Harvester, 423
- International Harvester D-155
- Liquid-cooled
- 3-cylinder
- Diesel
| Power (gross) | 40 hp [29.8 kW] |
|---|---|
| Rated RPM | 1900 |
| Displacement | 154.8 ci [2.5 L] |
| Bore/Stroke | 3.87x4.37 inches [98 x 111 mm] |
| Power (net) | 38 hp [28.3 kW] |
| Compression | 16:1 |
| Air cleaner | Dry |
| Coolant capacity | 13.7 qts [13.0 L] |
| Oil capacity | 6.9 qts [6.5 L] |
| Starter volts | 12 |
Transmission Information of International Harvester, 423
Transmission variants 1
| Type | Gear |
|---|---|
| Oil capacity | 36.5 qts [34.5 L] |
| Gears | 8 forward and 2 reverse |
| Clutch | 254mm dry disc |
Transmission variants 2
| Type | Creeper |
|---|---|
| Gears | 12 forward and 3 reverse |
- 8-speed gear
- 12-speed creeper
Mechanical Specs of International Harvester, 423
- Two-wheel drive
| Differential lock | Mechanical rear |
|---|
Power Information of International Harvester, 423
| Rear PTO Type | 540 |
|---|
Hydraulics Specifications of International Harvester, 423
| Capacity | 3.4 gal [12.9 L] |
|---|
Three-Point Hitch of International Harvester, 423
| Rear Type | II/I |
|---|---|
| Rear lift | 3880 lbs [1759 kg] |
Where it sits
With 40 HP, the International Harvester 423 sits between D-439 (39 HP) and 424 (41 HP) in International Harvester's range. Its power puts it in the 34th percentile of 1960s models in our database (709 machines).
Frequently asked questions
How much horsepower does the International Harvester 423 have?
The International Harvester 423 delivers 40 HP.
What years was the International Harvester 423 produced?
The International Harvester 423 was produced in 1966-1975.
What engine does the International Harvester 423 have?
The International Harvester 423 is powered by a Diesel, 3-cylinder engine.
What transmission does the International Harvester 423 use?
The International Harvester 423 uses a Gear transmission.
How much does the International Harvester 423 weigh?
The International Harvester 423 weighs 4443 lbs [2015 kg].
Is the International Harvester 423 4WD?
The International Harvester 423 is available in 2WD.