International Harvester 44

Manual transmission fluid capacity & service interval

International Harvester 44 manual transmission fluid capacity ranges from 35 to 42 liters. Service intervals include checks at 200 and 250 hours, and changes at 750, 800, 1500, and 1600 hours. The data covers 7 configurations.

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

TypeSpecifications
844 XL (1981-1985)
  • Use: Normal
  • Capacity 42 liter
  • Check 200 hours
  • Change 1600 hours
  • Code: 8/4
644 (1975-1980)
  • Use: Normal
  • Capacity 35 liter
  • Check 250 hours
  • Change 750 hours
  • Code: 12/4
644 (1975-1980)
  • Use: Normal
  • Capacity 42 liter
  • Check 250 hours
  • Change 1500 hours
  • Code: 8/4
744 (1975-1980)
  • Use: Normal
  • Capacity 35 liter
  • Check 250 hours
  • Change 750 hours
  • Code: 12/4
744 (1975-1980)
  • Use: Normal
  • Capacity 42 liter
  • Check 250 hours
  • Change 1500 hours
  • Code: 8/4
844 S (1974-1985)
  • Use: Normal
  • Capacity 35 liter
  • Check 200 hours
  • Change 800 hours
  • Code: 12/4
844 S (1974-1985)
  • Use: Normal
  • Capacity 42 liter
  • Check 250 hours
  • Change 1600 hours
  • Code: 8/4

Additional Notes

  • The International Harvester 44 series manual transaxle fluid specifications cover two distinct capacity values across all listed configurations: 35 liters and 42 liters. In fluid service contexts, differing capacities for the same component typically reflect different fill points or transaxle variants within the same model range.
  • The 644 (1975-1980) transaxle with a 35-liter capacity calls for a fluid check every 250 hours and a change every 750 hours under normal use conditions.
  • A second 644 (1975-1980) transaxle entry lists a 42-liter capacity with the same 250-hour check interval but extends the change interval to 1500 hours, doubling the drain period compared to the 35-liter variant.
  • The 744 (1975-1980) mirrors the 644 exactly in both capacity entries and service intervals, with the 35-liter fill requiring a change at 750 hours and the 42-liter fill at 1500 hours, both checked at 250-hour intervals.
  • The 844 S (1974-1985) introduces a tighter check interval of 200 hours for the 35-liter transaxle fill, compared to the 250-hour check interval seen on the 644 and 744 at the same capacity.
  • The 844 S 35-liter transaxle also carries an 800-hour change interval, which sits between the 750-hour and 1500-hour intervals found across the 644 and 744 entries at their respective capacities.
  • For the 844 S (1974-1985) at 42 liters, the check interval returns to 250 hours while the change interval is set at 1600 hours, slightly longer than the 1500-hour change interval on the 644 and 744 at the same capacity.
  • The 844 XL (1981-1985) lists only a single capacity entry at 42 liters, with a check interval of 200 hours and a change interval of 1600 hours, making the 200-hour check the shortest among all 42-liter entries in the specification set.

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