International Harvester 44

Differential fluid capacity & service interval

International Harvester 44 uses differential fluid with a capacity range of 5,3 to 5,9 liters. Service intervals include checking at 200 to 250 hours and changing at 750 to 800 hours. The data covers 4 configurations.

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

TypeSpecifications
  • 844 XL (1981-1985)
  • Front
  • Use: Normal
  • Capacity 5,3 liter
  • Check 200 hours
  • Change 800 hours
  • 644 (1975-1980)
  • Front
  • Use: Normal
  • Capacity 5,9 liter
  • Check 250 hours
  • Change 750 hours
  • 744 (1975-1980)
  • Front
  • Use: Normal
  • Capacity 5,9 liter
  • Check 250 hours
  • Change 750 hours
  • 844 S (1974-1985)
  • Front
  • Use: Normal
  • Capacity 5,3 liter
  • Check 200 hours
  • Change 800 hours

Additional Notes

  • The International Harvester 644 and 744 share identical front differential fluid specifications, with a capacity of 5.9 liters and a change interval of 750 hours under normal use conditions.
  • The 844 S and 844 XL carry a front differential fluid capacity of 5.3 liters, which is 0.6 liters less than the 644 and 744 configurations.
  • A check interval of 250 hours applies to the 644 and 744 front differentials, meaning fluid level inspection is due three times before a full change is required at 750 hours.
  • The 844 S and 844 XL front differentials follow a shorter check interval of 200 hours, compared to the 250-hour check interval on the 644 and 744.
  • Despite the more frequent check interval on the 844 S and 844 XL, the change interval for those models is set at 800 hours, which is 50 hours longer than the 750-hour change interval on the 644 and 744.
  • The 844 S covers the widest model year span in the dataset, running from 1974-1985, while the 844 XL entered production later, from 1981-1985, yet shares the same front differential capacity and service intervals as the 844 S.
  • All four configurations list front differential fluid specifications under normal use conditions, meaning the stated check and change intervals are not adjusted for heavy-duty or severe operating environments in the available data.

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