Coolant capacity for the John Deere 20A is 1.59 gal (6 L). The coolant type is listed as John Deere Cool-Gard II, and the antifreeze mix is For a John Deere 20A tractor, the recommended coolant is John Deere Cool-Gard II, which.
Coolant capacity1.59 gal (6 L)Cooling system refill amount
Antifreeze mixFor a John Deere 20A tractor, the recommended coolant is John Deere Cool-Gard II, whichFreeze/boil protection
John Deere 20A Coolant Capacity Specs
Coolant capacity
1.59 gal (6 L)
Coolant type
John Deere Cool-Gard II
Antifreeze mix
For a John Deere 20A tractor, the recommended coolant is John Deere Cool-Gard II, which
Engine horsepower
21 hp
Engine displacement
1 L (61 cu in)
John Deere 20A Coolant Capacity Guide
Coolant capacity guide
This model
1.59 gal
Class low
0.8 gal
Class typical
2.5 gal
Class high
5 gal
Compared with a broad older small tractor guide, not the full tractor dataset.
John Deere 20A Coolant Service Notes
Coolant capacity note
The John Deere 20A coolant capacity is 1.59 gal (6 L). Treat it as a cooling-system amount, not a radiator-only top-up amount
Coolant service note
A proper coolant change on the John Deere 20A means using the 1.59 gal (6 L) capacity and keeping the coolant chemistry consistent with John Deere Cool-Gard II and For a John Deere 20A tractor, the recommended coolant is John Deere Cool-Gard II, which
Coolant type note
For the John Deere 20A, 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 20A coolant mix guidance is For a John Deere 20A tractor, the recommended coolant is John Deere Cool-Gard II, which. This matters most in freezing weather, hot work and long service intervals
Refill check
For the John Deere 20A, 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
The John Deere 20A engine specs listed with this page are engine horsepower 21 hp and engine displacement 1 L (61 cu in). They help identify the machine, but they are not a substitute for the coolant capacity
John Deere 20A Coolant Capacity FAQ
What coolant amount is listed for the John Deere 20A?
The listed coolant amount for the John Deere 20A is 1.59 gal (6 L). It is a refill guide, not a reason to ignore the actual level marks
What coolant type does the John Deere 20A use?
The John Deere 20A 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 20A use?
If using concentrate for the John Deere 20A, mix it to For a John Deere 20A tractor, the recommended coolant is John Deere Cool-Gard II, which before filling unless the product label says it is already premixed
What is the final check after a John Deere 20A coolant change?
After refilling the John Deere 20A, run the engine to operating temperature, let it cool and recheck the radiator or overflow level. Air pockets can make the level drop
Should I drain and refill the John Deere 20A coolant system?
A top-up is only a level correction. A flush is the better choice if the John Deere 20A 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.
