Shantui Graders

Differential fluid capacity & service interval

Shantui Graders use differential fluid with a capacity of 24 liters. The service interval for fluid changes is 250 hours. The data covers 3 configurations.

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

TypeSpecifications
  • SG16-3, Cummins 6BTAA5.9-C160
  • Rear
  • Use: Normal
  • Capacity 24 liter
  • Change 250 hours
  • SG18-3, Cummins 6BTAA5.9-C180
  • Rear
  • Use: Normal
  • Capacity 24 liter
  • Change 250 hours
  • SG21-3, Cummins 6CTAA8.3-C215
  • Rear
  • Use: Normal
  • Capacity 24 liter
  • Change 250 hours

Additional Notes

  • All three Shantui Graders listed — the SG16-3, SG18-3, and SG21-3 — share an identical rear differential fluid capacity of 24 liters, indicating a common rear differential housing design across the range despite differences in engine displacement and power output.
  • A 24-liter capacity for a rear differential is a substantial fill volume, consistent with heavy-duty construction equipment where larger fluid reservoirs support sustained load-bearing and thermal management demands during grading operations.
  • The SG16-3 pairs a Cummins 6BTAA5.9-C160 engine with a rear differential fluid change interval of 250 hours under normal use conditions.
  • The SG18-3, equipped with a Cummins 6BTAA5.9-C180 engine, carries the same 250-hour rear differential fluid change interval under normal use conditions as the SG16-3, despite the higher power rating of its engine variant.
  • The SG21-3 uses a larger Cummins 6CTAA8.3-C215 engine, yet the rear differential fluid change interval under normal use conditions remains at 250 hours, consistent with the two lower-displacement models.
  • A 250-hour service interval for differential fluid in construction equipment is a relatively frequent change schedule, reflecting the high-stress drivetrain loads typical of motor grader applications such as road maintenance and earthmoving.

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