Coolant capacity for the John Deere X120 is 3 gal (11.4 L). The coolant type is listed as John Deere Cool-Gard II, and the antifreeze mix is 40/60 coolant and water mix.
Coolant capacity3 gal (11.4 L)Cooling system refill amount
Antifreeze mix40/60 coolant and water mixFreeze/boil protection
John Deere X120 Coolant Capacity Specs
Coolant capacity
3 gal (11.4 L)
Coolant type
John Deere Cool-Gard II
Antifreeze mix
40/60 coolant and water mix
Engine horsepower
12 hp
Engine displacement
30.6 cu in (0.5 L)
John Deere X120 Coolant Capacity Guide
Coolant capacity guide
This model
3 gal
Class low
0.5 gal
Class typical
2.5 gal
Class high
4.5 gal
Compared with a broad ztrak / mower guide, not the full tractor dataset.
John Deere X120 Coolant Service Notes
Coolant capacity note
For the John Deere X120, the coolant capacity is 3 gal (11.4 L). That is the buying and refill guide for a full cooling-system service
Coolant service note
A proper coolant change on the John Deere X120 means using the 3 gal (11.4 L) capacity and keeping the coolant chemistry consistent with John Deere Cool-Gard II and 40/60 coolant and water mix
Coolant type note
For the John Deere X120, coolant choice is listed as John Deere Cool-Gard II. Capacity tells you how much; coolant type tells you what to use
Antifreeze mix note
The John Deere X120 coolant mix guidance is 40/60 coolant and water mix. This matters most in freezing weather, hot work and long service intervals
Refill check
For the John Deere X120, 3 gal (11.4 L) is the planned refill amount. The final level may need a small top-up after trapped air leaves the system
Engine context
The John Deere X120 engine specs listed with this page are engine horsepower 12 hp and engine displacement 30.6 cu in (0.5 L). They help identify the machine, but they are not a substitute for the coolant capacity
John Deere X120 Coolant Capacity FAQ
What is the John Deere X120 coolant capacity?
The listed coolant amount for the John Deere X120 is 3 gal (11.4 L). It is a refill guide, not a reason to ignore the actual level marks
Which coolant is listed for the John Deere X120?
The John Deere X120 is listed with John Deere Cool-Gard II coolant guidance. If topping up, match the existing coolant type instead of mixing random antifreeze
What antifreeze mix should the John Deere X120 use?
The listed antifreeze mix for the John Deere X120 is 40/60 coolant and water mix. Use the correct mix for freeze, boil and corrosion protection
What should I check after refilling coolant in the John Deere X120?
After refilling the John Deere X120, 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 X120?
A top-up is only a level correction. A flush is the better choice if the John Deere X120 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.
