Steyr S29

Transfer case fluid capacity & service interval

Steyr S29 transfer case fluid capacity is 4,5 liters. Service intervals include checking at 20000 km and changing at 40000 km or 12 months. The data covers 2 configurations.

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

TypeSpecifications
19S29 (4x4) (1988-1993)
  • Use: Normal
  • Capacity 4,5 liter
  • Check 20000 km
  • Change 40000 km/ 12 months
  • Code: VG 1200
27S29 (6x6) (1988-1993)
  • Use: Normal
  • Capacity 4,5 liter
  • Code: VG 1200

Additional Notes

  • The Steyr S29 transfer case holds 4.5 liters of fluid across both the 19S29 (4x4) and 27S29 (6x6) configurations, indicating a shared transferbox design in terms of fluid volume despite the difference in drivetrain layout.
  • A 4.5-liter capacity is a relatively substantial fill volume for a transfer case, which is consistent with a heavy-duty commercial or military-grade unit where larger gear sets and internal components require greater lubrication volume.
  • The 19S29 (4x4) under normal use conditions carries a fluid check interval of 20,000 km, meaning the fluid level is to be inspected at that mileage point without necessarily performing a full drain and refill.
  • The change interval for the 19S29 (4x4) under normal use is set at 40,000 km or 12 months, whichever comes first, combining both a distance-based and a time-based threshold for the fluid replacement cycle.
  • The dual-trigger interval of 40,000 km or 12 months on the 19S29 (4x4) reflects a standard approach in which calendar aging of the fluid is treated as equally relevant as accumulated mileage, particularly for vehicles that may sit idle for extended periods.

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