John Deere Construction Tracked excavators

AdBlue (DEF) capacity & service interval

John Deere Construction tracked excavators utilize AdBlue (DEF) with a capacity range of 16 to 35 liters. The data covers 2 configurations.

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

TypeSpecifications
300GLC (2018- )
  • Use: Normal
  • Capacity 35 liter
345GLC (2018- )
  • Use: Normal
  • Capacity 16 liter

Additional Notes

  • The John Deere Construction 300GLC tracked excavator carries a 35-liter AdBlue (DEF) tank capacity, which is notably large and reflects the demands of a heavy-duty SCR system operating under normal use conditions.
  • The 345GLC carries a 16-liter AdBlue (DEF) capacity under normal use conditions, a figure roughly half that of the 300GLC, indicating a meaningfully smaller DEF reservoir despite both models sharing the same SCR system type.
  • Both the 300GLC and 345GLC are noted as equipped with a selective catalytic reduction system, which is the emissions control technology that consumes DEF fluid to reduce nitrogen oxide output from diesel engines.
  • The capacity values listed for both models represent service fill quantities, meaning the volume of DEF fluid the tank holds during normal operation rather than a dry-fill or overhaul figure.
  • The 300GLC and 345GLC specifications both carry a starting year of 2018, with both models sharing the same model year entry point for the listed DEF capacity data.

Other Systems