Cheng Gong Wheeled loaders

Coolant capacity & service interval

Cheng Gong wheeled loaders require coolant with a capacity range of 33 to 40 liters. Service intervals include checking every 10 hours and changing every 2000 hours or 12 months. The data covers 4 configurations.

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

TypeSpecifications
CG935G, Cummins QSB5.9 (2008- )
  • Use: Normal
  • Capacity 40 liter
  • Check 10 hours
  • Change 2000 hours/ 12 months
CG938H, Cummins QSB6.7 (2008- )
  • Use: Normal
  • Capacity 33 liter
  • Check 10 hours
  • Change 2000 hours/ 12 months
CG958G, Cummins QSB6.7 (2008- )
  • Use: Normal
  • Capacity 33 liter
  • Check 10 hours
  • Change 2000 hours/ 12 months
CG958H, Cummins QSB6.7 (2008- )
  • Use: Normal
  • Capacity 33 liter
  • Check 10 hours
  • Change 2000 hours/ 12 months

Additional Notes

  • The Cheng Gong Wheeled Loaders cooling system capacities split into two distinct values across the four configurations: 40 liters for the CG935G with the Cummins QSB5.9 engine, and 33 liters for the CG938H, CG958G, and CG958H, all of which use the Cummins QSB6.7 engine.
  • A 40-liter cooling system capacity on the CG935G is notably higher despite the QSB5.9 being a smaller displacement engine than the QSB6.7 found in the other three models, indicating that overall machine size and circuit design, rather than engine displacement alone, determine total coolant volume.
  • The shared 33-liter capacity across the CG938H, CG958G, and CG958H reflects a common engine platform in the Cummins QSB6.7, where the cooling circuit volume remains consistent regardless of the loader model designation.
  • All four configurations share an identical check interval of every 10 hours of operation, which in heavy equipment practice corresponds to a daily or pre-shift inspection frequency.
  • The coolant change interval is set at 2000 hours or 12 months under normal use conditions for all four models, meaning whichever threshold is reached first would govern the service event in standard calendar and operational terms.
  • A 2000-hour change interval is relatively extended for heavy construction equipment coolant service, reflecting the use of long-life coolant formulations typically associated with modern Cummins QSB-series engines.

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