For the John Deere 6R 120, coolant capacity is 1.59 gal (6 L). Fill slowly and recheck the radiator or overflow level after the first heat cycle.
Coolant capacity1.59 gal (6 L)Cooling system refill amount
John Deere 6R 120 Coolant Capacity Specs
Coolant capacity
1.59 gal (6 L)
Engine horsepower
118 hp
Engine displacement
276 cu in (4.52 L)
John Deere 6R 120 Coolant Capacity Guide
Coolant capacity guide
This model
1.59 gal
Class low
6 gal
Class typical
9.5 gal
Class high
14 gal
Compared with a broad 6 series guide, not the full tractor dataset.
John Deere 6R 120 Coolant Service Notes
Coolant capacity note
For the John Deere 6R 120, the coolant capacity is 1.59 gal (6 L). That is the buying and refill guide for a full cooling-system service
Coolant service note
After refilling the John Deere 6R 120, run it to operating temperature and recheck after cool-down. Air pockets can make the level drop
Refill check
For the John Deere 6R 120, 1.59 gal (6 L) is the planned refill amount. The final level may need a small top-up after trapped air leaves the system
Engine context
For comparison, the John Deere 6R 120 engine details listed here are engine horsepower 118 hp and engine displacement 276 cu in (4.52 L). The coolant capacity remains the service number to use for refilling
John Deere 6R 120 Coolant Capacity FAQ
What is the John Deere 6R 120 coolant capacity?
The listed coolant amount for the John Deere 6R 120 is 1.59 gal (6 L). It is a refill guide, not a reason to ignore the actual level marks
What should I check after refilling coolant in the John Deere 6R 120?
After refilling the John Deere 6R 120, run the engine to operating temperature, let it cool and recheck the radiator or overflow level. Air pockets can make the level drop
Is a coolant top-up enough before using the John Deere 6R 120?
A top-up is only a level correction. A flush is the better choice if the John Deere 6R 120 has rusty coolant, oil contamination, mixed coolant types or repeated overheating
Official information note
Mistakes do happen. Tractor coolant capacity and coolant type can change by year, market, engine, radiator setup and service procedure. Check the operator manual, service manual and official deere.com website before draining, flushing or refilling the cooling system.
