International Harvester 633
The International Harvester 633 is a tractor produced by International Harvester. It is equipped with a 179 ci 2.9 L engine. The listed engine power is Diesel (listed): 52 hp / 38.8 kW. Transmission: Synchron. Operating weight: 5158 to 5589 pounds.
Engine Power
Diesel (listed): 52 hp / 38.8 kW
Fuel & Capacities
15.85 gal
60.0 L
Transmission
Synchron
Operating Weight
5158 to 5589 pounds
Overview
 | 1975 - 1978
33 SeriesUtility tractor
33 Series
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | International Harvester |
Utility tractor | |
Built in Neuss, Germany | |
Variants | |
|---|---|
633 | utility |
633E | narrow |
633V | vineyard |
International Harvester 633 Engine | |
|---|---|
International Harvester 2.9L 3-cyl diesel | |
Engine details ...  |
International Harvester 633 Power | |
|---|---|
Engine | 52 hp
38.8 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Disc brakes | |
Open operator station. Cab optional with heater. |
Capacity | |
|---|---|
Fuel | 15.85 gal
60.0 L |
Hydraulic system | 3.2 gal
12.1 L |
Hydraulics | |
|---|---|
Capacity | 3.2 gal
12.1 L |
Pump flow | 8.6 gpm
32.6 lpm |
Tractor hitch | |
|---|---|
Rear Type | II |
Rear lift | 3969 lbs
1800 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 81.5 inches
207 cm |
4WD Wheelbase | 79.9 inches
202 cm |
Weight | 5158 to 5589 pounds |
Front tire | 6.50-16 |
2WD Rear tire | 12.4/11-36 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Charging system | alternator |
Battery volts | 12 |
References | |
|---|---|
 | |
633 published by International Harvester |
Engine
Engine Detail — 179 ci / 2.9 L Diesel
Manufacturer | International Harvester D-179 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 179 ci
2.9 L |
Bore/Stroke | 3.875x5.0625 inches
98 x 129 mm |
Power | 52 hp
38.8 kW |
Rated RPM | 2180 |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
8-speed | |
16-speed |
Transmission — 8 forward and 4 reverse
Gears | 8 forward and 4 reverse |
Four gears (1-4) in two ranges, plus reverse range. | |
With 12.4/11-36 rear tires. | |
 | |
Transmission — Synchron
Transmission | Synchron |
Gears | 16 forward and 8 reverse |
Dimensions
International Harvester 633 Tires | |
|---|---|
2WD Standard tires (ag) | Front: 6.50-16. Rear: 12.4/11-36 |
4WD Standard tires (ag) | Front: 10.5-20. Rear: 12.4/11-36 |
2WD Optional tires (ag) | Front: 7.50-16. Rear: 11.2/10-36 |
4WD Optional tires (ag) | Front: 10.5-18. Rear: 16.9/14-28 |
Dimensions | |
|---|---|
2WD Wheelbase | 81.5 inches
207 cm |
4WD Wheelbase | 79.9 inches
202 cm |
Length | 135.8 inches
344 cm |
Width | 64.7 inches
164 cm |
Height | 93.5 inches
237 cm |
2WD Shipping weight | 5158 lbs
2339 kg |
4WD Shipping weight | 5589 lbs
2535 kg |
Front tread | 48.5 to 69.7 inches
123 to 177 cm |
Rear tread | 56.2 to 76.9 inches
142 to 195 cm |
Photos
International Harvester 633 with loader and backhoe.
International Harvester 633, front view.
Recommended Implements & Sizing Guide
Engineering recommendations for International Harvester 633 based on its 52 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 6 ft (72 in)1.8 m | Medium Duty | Medium pasture clearing; rear slip-clutch recommended. |
Rotary TillerSeedbed Prep | 66 to 72 in165 - 180 cm | Medium Duty | Standard utility tiller; slip clutch protection required. |
Disc HarrowSecondary Tillage | 7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙 | Medium Duty | Field leveling and clod breaking behind plows. |
Hay BalerHay & Forage | Small Square Baler (14x18")小方捆打捆机 (36x46 cm) | Medium Duty | Classic 2-string baler for horse and small livestock hay. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for International Harvester 633.
Estimated Continuous Field Runtime: 5.8 hrs
Approximately 5.8 hours of continuous field operation at ~75% rated power on a full tank (15.8 gal / 60 L).
Estimated 75% Load Fuel Burn~2.7 gal/hr (10.2 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
International Harvester 633 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for International Harvester 633.
Converted Equivalents:
Horsepower (HP)52 hp
Kilowatts (kW)38.8 kW
Metric Horsepower (PS / CV)52.7 PS
Direct Competitor Comparison
Compare International Harvester 633 against same-era industry alternatives in the same horsepower class.
Current Model
International Harvester
International Harvester 633
Engine Power:Diesel (listed): 52 hp / 38.8 kW
★ Baseline Reference
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