Shantui Graders

Automatic transmission fluid capacity & service interval

Shantui Graders use automatic transmission fluid with a capacity of 28 liters. Service intervals include changes at 100 hours and 1000 hours. The data covers 6 configurations.

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

TypeSpecifications
  • SG16-3, Cummins 6BTAA5.9-C160
  • Powershift
  • Use: Normal
  • Capacity 28 liter
  • Change 1000 hours
  • Code: 6/3
  • SG16-3, Cummins 6BTAA5.9-C160
  • Powershift
  • Use: Initial service
  • Capacity 28 liter
  • Change 100 hours
  • Code: 6/3
  • SG18-3, Cummins 6BTAA5.9-C180
  • Powershift
  • Use: Normal
  • Capacity 28 liter
  • Change 1000 hours
  • Code: 6/3
  • SG18-3, Cummins 6BTAA5.9-C180
  • Powershift
  • Use: Initial service
  • Capacity 28 liter
  • Change 100 hours
  • Code: 6/3
  • SG21-3, Cummins 6CTAA8.3-C215
  • Powershift
  • Use: Normal
  • Capacity 28 liter
  • Change 1000 hours
  • Code: 6/3
  • SG21-3, Cummins 6CTAA8.3-C215
  • Powershift
  • Use: Initial service
  • Capacity 28 liter
  • Change 100 hours
  • Code: 6/3

Additional Notes

  • The powershift transmission in the Shantui Graders SG16-3, SG18-3, and SG21-3 all share an identical automatic transmission fluid capacity of 28 liters, regardless of which Cummins engine variant is paired with the machine.
  • A 28-liter fill volume is a substantial capacity, consistent with the demands of a heavy-duty powershift transmission designed for grading applications where continuous load cycling places high thermal stress on the fluid.
  • Under normal use conditions, the transmission fluid change interval across the SG16-3, SG18-3, and SG21-3 is set at 1,000 hours, which is a standard heavy equipment interval reflecting the durability expectations of powershift transmission fluid in regular operating environments.
  • An initial service interval of 100 hours applies to the powershift transmission on all three models, meaning the first fluid change occurs far earlier than subsequent ones. At 100 hours, residual manufacturing debris and initial wear particles are flushed from the system before the standard 1,000-hour cycle begins.
  • The ratio between the initial service interval and the normal interval is 10 to 1, with the 100-hour first change on the SG16-3 serving as a break-in flush rather than a routine maintenance event.
  • The SG18-3 carries the Cummins 6BTAA5.9-C180 engine, a higher-output variant of the same 5.9-liter displacement family used in the SG16-3, yet the transmission fluid capacity and service intervals remain unchanged at 28 liters, 100 hours initial, and 1,000 hours normal.
  • The SG21-3 uses the larger Cummins 6CTAA8.3-C215, a 8.3-liter inline-six producing more output than the 5.9-liter engines in the SG16-3 and SG18-3, yet the powershift transmission fluid specifications remain consistent at 28 liters with the same dual-interval service schedule.

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