John Deere 8RX series

AdBlue (DEF) capacity & service interval

John Deere 8RX series uses AdBlue (DEF) fluid with a capacity of 37.2 liters. The data does not specify service intervals. The information covers 8 configurations of the model.

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

TypeSpecifications
8RX 310, 801001 -> 806000 (2019- )
  • Use: Normal
  • Capacity 37,2 liter
8RX 310, 806001 -> (2019- )
  • Use: Normal
  • Capacity 37,2 liter
8RX 340, 801001 -> 806000 (2019- )
  • Use: Normal
  • Capacity 37,2 liter
8RX 340, 806001 -> (2019- )
  • Use: Normal
  • Capacity 37,2 liter
8RX 370, 801001 -> 806000 (2019- )
  • Use: Normal
  • Capacity 37,2 liter
8RX 370, 806001 -> (2019- )
  • Use: Normal
  • Capacity 37,2 liter
8RX 410, 801001 -> 806000 (2019- )
  • Use: Normal
  • Capacity 37,2 liter
8RX 410, 806001 -> (2019- )
  • Use: Normal
  • Capacity 37,2 liter

Additional Notes

  • The John Deere 8RX series AdBlue (DEF) tank capacity is 37.2 liters across all four model variants — the 8RX 310, 8RX 340, 8RX 370, and 8RX 410 — with no variation between power ratings.
  • The 37.2-liter capacity applies to the selective catalytic reduction (SCR) system, which uses DEF to convert nitrogen oxides into nitrogen and water vapor as part of exhaust aftertreatment.
  • Each of the four model variants carries two distinct serial number ranges: 801001 through 806000, and 806001 onward, both introduced from 2019. The 37.2-liter DEF capacity is consistent across both serial number brackets for every variant.
  • The serial number boundary at 806001 represents a production break point within the 8RX lineup. Despite this distinction, the DEF tank capacity remains unchanged on either side of that boundary for all four models.
  • All specifications are listed under normal use conditions. In SCR-equipped agricultural equipment, DEF consumption is generally proportional to fuel consumption, so a 37.2-liter tank is sized to reduce refill frequency during extended field operations.

Other Systems