Utility tractorsSpec sheet
International Harvester 634
The International Harvester 634 is a powerful utility tractor built for tough farm work. It has a strong 4-wheel drive system and power steering, making it easy to handle in various conditions. The tractor uses a manual transmission with 8 forward gears and 2 reverse gears, giving the driver good control over speed and power. Under the hood, the 634 has a diesel engine made by International Harvester. This engine has 4 cylinders and is naturally aspirated, meaning it doesn't use a turbocharger. With 66 horsepower, it offers above-average power for its class. The engine size is also above average, which helps it handle heavy loads. The tractor has a three-point hitch at the back, useful for attaching various farm tools. It's a big machine, weighing 7,694 pounds, which is on the heavier side for utility tractors. This weight helps it stay stable during tough jobs.
ManufacturerInternational HarvesterPower66 hp(49.2 kW)Class60–100 HP tractors →Engine4-cylinderTransmissionManual
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Key specifications
- Category
- Utility
- Engine power
- 66hp
- Operating weight
- 7,694 lb
- Transmission
- Manual
Category comparison
634 compared with its category
vs. Utility medianDistribution
Engine Power (hp)
All recorded Utility tractors
66 hp · 60th
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The 634 ranks at the 60th percentile for engine power among recorded utility tractors.
Overview
About the International Harvester 634
The International Harvester 634 is a powerful utility tractor built for tough farm work. It has a strong 4-wheel drive system and power steering, making it easy to handle in various conditions. The tractor uses a manual transmission with 8 forward gears and 2 reverse gears, giving the driver good control over speed and power. Under the hood, the 634 has a diesel engine made by International Harvester. This engine has 4 cylinders and is naturally aspirated, meaning it doesn't use a turbocharger. With 66 horsepower, it offers above-average power for its class. The engine size is also above average, which helps it handle heavy loads. The tractor has a three-point hitch at the back, useful for attaching various farm tools. It's a big machine, weighing 7,694 pounds, which is on the heavier side for utility tractors. This weight helps it stay stable during tough jobs.
Full specifications
Recorded specifications
General
| Manufacturer | International Harvester |
|---|---|
| Model | 634 |
| Category | Utility tractor |
| Type | 4WD |
| Operating weight | 7,694lb(3,490 kg) |
Engine
| Make | International Harvester |
|---|---|
| Model | BD-281 |
| Power | 66hp(49.22 kW) |
| Cylinders | 4 |
| Displacement | 281ci(4.61 L) |
| Bore | 4.13in(104.8 mm) |
| Stroke | 5.25in(133.3 mm) |
Transmission
| Type | Manual |
|---|---|
| Forward gears | 8 |
| Reverse gears | 2 |
Chassis & drive
| Drive | 4WD |
|---|---|
| Steering | Power |
Dimensions
| Length | 139in(3,531 mm) |
|---|---|
| Width | 65.5in(1,664 mm) |
| Height | 96in(2,438 mm) |
| Operating weight | 7,694lb(3,490 kg) |
Closest alternatives
634 compared with the nearest models by horsepower
The closest utility models to the International Harvester 634 by rated horsepower are the Kubota M4063 and the Kubota M4062. The Kubota M4063 matches it on rated power and weighs 2,030 lb less, so it is lighter for its power, which favors PTO and transport work over heavy draft. The Kubota M4062 matches it on rated power and weighs 990 lb less, carrying 102 lb per horsepower against 117 lb. Of the 3 models, the 634 has the highest weight per horsepower at 117 lb per hp.
| Spec | International Harvester 634 | Kubota M4063 | Kubota M4062 |
|---|---|---|---|
| Engine power | 66 hp49.2 kW | 66 hp49.2 kW | 66 hp49.2 kW |
| Operating weight | 7,694 lb3,490 kg | 5,666 lb2,570 kg | 6,702 lb3,040 kg |
| Weight per hp | 117 lb/hp71 kg/kW | 86 lb/hp52 kg/kW | 102 lb/hp62 kg/kW |
| Displacement | 281 ci4.6 L | 203.3 ci3.33 L | 203.3 ci3.33 L |
| Cylinders | 4 | 4 | 4 |
| Transmission | Manual | Power shuttle | - |
| Drive | 4WD | 4WD | 4WD |
| Years built | - | 2021+ | 2018-2020 |
Calculators
Calculators for the 634
PTO power
About 55 to 59 PTO hp
Estimated from the 66 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 66 hp tractor can run
Maximum size is about a 8 ft rotary cutter or a 6.5 ft tiller. The calculator also sizes discs, plows and balers.
Ballast
136 lb per PTO hp as listed
The calculator gives the target weight and front/rear split for each job.
Units
66 hp is 49.2 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Category medians
634 vs. Utility median
International Harvester 634 compared with other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 66 hp | 55 hp | +20% | 60th |
| Engine Displacement | 281 ci | 183 ci | +53% | 82nd |
| Cylinders | 4 | 4 | at median | 50th |
| Forward Gears | 8 | 12 | -33% | 23rd |
| Operating Weight | 7,694 lb | 5,303 lb | +45% | 73rd |
| Length | 139 in | 137 in | +2% | 53rd |
| Width | 65.5 in | 66 in | -1% | 49th |
| Height | 96 in | 94.1 in | +2% | 55th |
Medians and percentiles are calculated from the utility tractors in the database that have a recorded value for each specification (sample size 3,933–5,720 models).
Same manufacturer
Other International Harvester models
Other manufacturers
Models with similar horsepower
FAQ
Frequently asked questions
How powerful is the International Harvester 634?
The International Harvester 634 has an engine power output of 66 hp. It is powered by a 4-cylinder engine displacing 281 ci.
What hitch category is the International Harvester 634?
The International Harvester 634 uses a Category Category 3 hitch.
What is the working weight of the International Harvester 634?
The operating weight of the International Harvester 634 is approximately 7,694 lb.
What type of transmission does the International Harvester 634 have?
The International Harvester 634 uses a Manual transmission offering 8 forward gears.
What routine service does the International Harvester 634 need?
Regular maintenance for the International Harvester 634 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.