Shibaura ST

Differential fluid capacity & service interval

Shibaura ST differential fluid capacity is 1 liter. Service intervals include checking at 50 hours and changing at 300 hours. The data covers 3 configurations.

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

TypeSpecifications
  • ST318 (HST) (1998-2005)
  • Front
  • Use: Normal
  • Capacity 1 liter
  • Check 50 hours
  • Change 300 hours
  • ST321 (HST) (1998-2005)
  • Front
  • Use: Normal
  • Capacity 1 liter
  • Check 50 hours
  • Change 300 hours
  • ST324 (HST) (1998-2005)
  • Front
  • Use: Normal
  • Capacity 1 liter
  • Check 50 hours
  • Change 300 hours

Additional Notes

  • The Shibaura ST318, ST321, and ST324 in HST configuration each carry a front differential fluid capacity of 1 liter, which is a relatively modest volume consistent with compact utility tractor front axle housings.
  • All three HST models share an identical service schedule for the front differential, with a fluid level check interval of 50 hours and a full fluid change interval of 300 hours under normal use conditions.
  • The 50-hour check interval on the front differential is notably more frequent than the 300-hour change interval, reflecting standard practice for monitoring fluid condition and level between full drain-and-fill services.
  • The 300-hour change interval applies specifically to normal use conditions across the ST318, ST321, and ST324 HST variants, meaning operation within typical load and environmental parameters as defined for that service classification.
  • The uniform 1-liter capacity across the ST318, ST321, and ST324 suggests a shared front axle or differential housing design among these three HST models within the 1998-2005 production span.

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