International Harvester 733 Overview
The International Harvester 733 is listed from 1980 through 1990 with a 206.4 cu in (3.4 L) direct-injection diesel rated at 59 hp. Published transmission data identifies a Synchron entry and lists both 8-forward/4-reverse and 16-forward/8-reverse arrangements, so it is important to identify the gearbox before using a capacity, procedure, or parts reference.
The 733 is listed with an independent 540-rpm rear PTO, 8.5 gpm (32.2 L/min) pump flow, and a Category II rear hitch with 4,630 lb (2,100 kg) of listed lift. Published weight ranges also differ between two- and four-wheel-drive equipment, making the tractor's configuration meaningful for parts and service research.
The service and parts-catalog routes below help an owner start the right conversation, but a complete match still depends on the tag, installed transmission, drive arrangement, and equipment.
International Harvester 733 Quick Answers
- What engine is in an International Harvester 733?The 733 is listed with a 206.4 cu in (3.4 L) direct-injection diesel rated at 59 hp (44.0 kW) and 2,180 rpm.
- Which transmissions were offered on the 733?Published 733 information identifies a Synchron transmission entry and lists 8-forward/4-reverse and 16-forward/8-reverse gear arrangements. Check the fitted gearbox before using a specification or service reference.
- What PTO does the 733 use?The International Harvester 733 is listed with an independent 540-rpm rear PTO. Verify the tractor's PTO shaft and equipment before implement setup.
- What hydraulic figures are listed?Published specifications list 8.5 gpm (32.2 L/min) pump flow and a 3.2 gal (12.1 L) hydraulic-system capacity. Use matching service literature for procedures and fluid specifications.
- What are the listed 733 capacities?Published records list 15.85 gal (60.0 L) of fuel, 9.5 qt (9.0 L) of engine oil, and 18.5 qt (17.5 L) of coolant. Confirm the fluid grade and filling method in matched literature.
- Which manuals are useful for an International 733?The linked sources include a 168-page 733 service-manual listing and a separate 733 parts-catalog listing. They are literature routes; confirm the serial number, transmission, and configuration before relying on either one.
Engine and Power
The 733 is listed with a 206.4 cu in (3.4 L) direct-injection diesel, rated at 2,180 rpm. Confirm the engine and exact tractor configuration before applying service information.
Diesel engine
| Displacement | 206.4 ci 3.4 L |
|---|---|
| Power | 59 hp 44.0 kW |
| Rated Rpm | 2180 |
| Torque | 154 lb-ft 208.8 Nm |
| Torque Rpm | 1600 |
| Engine Oil Capacity | 9.5 qts 9.0 L |
| Coolant Capacity | 18.5 qts 17.5 L |
Manufacture years
Engine
Transmission
Published 733 records identify a Synchron transmission and more than one gear-count arrangement. Identify the actual gearbox before using a capacity, repair procedure, or part reference.
8-speed transmission
| Gears | 8 forward and 4 reverse |
|---|---|
| Clutch | 280mm dry disc |
Synchron
| Name | Synchron |
|---|---|
| Gears | 16 forward and 8 reverse |
16-speed creeper
| Type | creeper |
|---|---|
| Gears | 16 forward and 8 reverse |
PTO and Hitch
The International Harvester 733 is listed with an independent 540-rpm rear PTO. Confirm PTO shaft and equipment before implement setup or diagnosis.
Rear PTO
Rear PTO type
Rear lift
Hydraulics
Published records list 8.5 gpm (32.2 L/min) pump flow and a 3.2 gal (12.1 L) hydraulic-system capacity. The installed remote and drive equipment should be checked on the tractor before repair work.
Capacity
Pump flow
Fluids, Battery, and Service Facts
Published capacities include 15.85 gal (60.0 L) of fuel, 9.5 qt (9.0 L) of engine oil, and 18.5 qt (17.5 L) of coolant. Use configuration-matched literature for grades, intervals, and fill steps.
Fuel tank
Hydraulic system
Tires and Dimensions
Tire and dimension values can vary by wheel, axle, and configuration.
Weight
Manuals and Documents
The 733 service-manual listing is a 168-page commercial reproduction. The linked parts-catalog listing is a separate route for assembly illustrations and parts research. Neither listing replaces a complete check of the individual tractor's serial number and installed equipment.
Document the transmission, PTO equipment, hydraulic controls, axle or drive arrangement, and wheel equipment before using a procedure or purchasing a part.
Service manual
- International Harvester 733 service manualoperation, maintenance, and specifications
Commercial 168-page service-manual listing. Confirm exact tractor coverage before use.
View service manual
Parts catalog
- International 733 parts catalogparts matching
Commercial parts-catalog listing. Verify serial number and configuration before ordering.
View parts catalog
Parts Checks Before Ordering
Start with the serial number, engine, installed transmission, PTO, hydraulic controls, drive arrangement, and wheel equipment. Published 733 information includes multiple transmission and weight entries that can affect the correct match.
A parts catalog is an assembly-research tool, not proof of fitment. Verify the tractor and the catalog's stated coverage before ordering.
- International 733 parts catalogCommercial parts-catalog listing for the International 733. Verify the serial number and configuration before ordering.View parts catalog
Accuracy Note
Tractor specifications can vary by year, region, factory configuration, installed equipment, and later repairs. Match serial range, engine, transmission, PTO setup, and model code before ordering parts or doing service work.