Steyr 900

Manual transmission fluid capacity & service interval

Steyr 900 manual transmission fluid capacity ranges from 22 to 31 liters. Service intervals include checks at 12 months or 500 hours and changes at 1000 hours or 12 to 24 months. The data covers 10 configurations.

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

TypeSpecifications
942, 942a II (1996- )
  • Use: Normal
  • Capacity 22 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: 16/8
948, 948a Turbo II (1996- )
  • Use: Normal
  • Capacity 22 liter
  • Check 500 hours
  • Change 1000 hours/ 12 months
  • Code: 16/8
955, 955a [chassisno. 1739 ->] (1996- )
  • Use: Normal
  • Capacity 28 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: 16/8
964, 964a Turbo [chassisno. 1739 ->] (1996- )
  • Use: Normal
  • Capacity 29 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: 16/8
970a Turbo [chassisno. 1739 ->] (1996- )
  • Use: Normal
  • Capacity 31 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: 16/8
942, 942a I (1992-1996)
  • Use: Normal
  • Capacity 22 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: 16/8
948, 948a Turbo I (1992-1996)
  • Use: Normal
  • Capacity 22 liter
  • Check 500 hours
  • Change 1000 hours/ 12 months
  • Code: 16/8
955, 955a [chassisno. -> 1738] (1992-1996)
  • Use: Normal
  • Capacity 22 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: 16/8
964, 964a Turbo [chassisno. -> 1738] (1992-1996)
  • Use: Normal
  • Capacity 22 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: 16/8
970a Turbo [chassisno. -> 1738] (1992-1996)
  • Use: Normal
  • Capacity 24 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: 16/8

Additional Notes

  • All Steyr 900 series manual transaxle capacities fall within a range of 22 to 31 liters, which are substantially large figures consistent with heavy-duty agricultural or commercial vehicle transaxles rather than passenger car gearboxes.
  • The 942 and 942a variants in both Series I (1992-1996) and Series II (1996- ) share an identical 22-liter transaxle capacity, with check intervals of 12 months or 500 hours and change intervals of 1000 hours or 24 months under normal use conditions.
  • The 948 and 948a Turbo variants, across both Series I (1992-1996) and Series II (1996- ), carry the same 22-liter capacity as the 942 but follow a tighter check schedule of 500 hours only, without the 12-month calendar alternative present in other variants. The change interval is also shorter at 1000 hours or 12 months rather than 24 months.
  • The shortened change interval on the 948 and 948a Turbo to 12 months, compared to 24 months on non-turbo variants, reflects the additional thermal and mechanical stress that turbocharged engines place on drivetrain fluids.
  • The 955 and 955a show a capacity increase tied directly to chassis number. Units up to chassis number 1738 hold 22 liters, while units from chassis number 1739 onward hold 28 liters, a 6-liter increase that indicates a revised or larger transaxle assembly was introduced at that production point.
  • The 964 and 964a Turbo follow the same chassis-number-based capacity split as the 955, with pre-1739 units at 22 liters and post-1738 units at 29 liters. The one-liter difference between the 955 and 964 post-1738 capacities likely reflects the additional demands of the turbocharged drivetrain configuration.
  • The 970a Turbo carries the largest transaxle fluid capacities across all listed variants. Pre-1739 chassis units require 24 liters, already higher than the 22-liter baseline of other early variants, while chassis number 1739 onward units require 31 liters, the highest capacity in the entire specification set.
  • The dual-trigger service intervals throughout the specifications, expressed as a time period or an operating hour count (whichever comes first), are standard practice for machinery that may accumulate hours at varying rates depending on seasonal or operational patterns.

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