International Harvester 33

Power steering fluid capacity & service interval

International Harvester 33 uses power steering fluid with a capacity range of 0,2 to 0,4 liters. Service intervals require a check every 200 hours. The data covers 5 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
733 (1983-1985)
  • Use: Normal
  • Capacity 0,4 liter
  • Check 200 hours
433 (1976-1985)
  • Use: Normal
  • Capacity 0,2 liter
  • Check 200 hours
533 (1976-1985)
  • Use: Normal
  • Capacity 0,2 liter
  • Check 200 hours
633 (1976-1985)
  • Use: Normal
  • Capacity 0,2 liter
  • Check 200 hours
733 (1976-1983)
  • Use: Normal
  • Capacity 0,4 liter
  • Check 200 hours

Additional Notes

  • The 433, 533, and 633 variants of the International Harvester 33 series share an identical steering box capacity of 0.2 liter, while the 733 carries a notably larger 0.4 liter capacity in the same component.
  • The 0.4 liter steering box capacity on the 733 represents double the fluid volume found in the three lower-numbered variants, which reflects a physically larger steering box assembly in that configuration.
  • The 733 specifications are split across two distinct year ranges, 1976-1983 and 1983-1985, yet both entries share the same 0.4 liter capacity and 200-hour check interval, indicating no change in steering box specification between those periods.
  • A 200-hour check interval applies uniformly across all five configurations under normal use conditions, meaning fluid level inspection is tied to operating hours rather than calendar time.
  • The note identifying the service point as the steering box, rather than a reservoir or pump, indicates the fluid capacity figures refer specifically to the gearbox housing itself.
  • The 0.2 liter capacity recorded for the 433, 533, and 633 steering boxes is a relatively small volume, consistent with a compact integral steering gear unit where fluid is retained within the box rather than circulated through a separate reservoir.

Other Systems