For the John Deere 620, coolant capacity is 6.5 gal (24.6 L). Coolant choice is listed as John Deere Cool-Gard II, with The recommended coolant for the John Deere 620 tractor is John Deere Cool-Gard II or John guidance.
Coolant capacity6.5 gal (24.6 L)Cooling system refill amount
Antifreeze mixThe recommended coolant for the John Deere 620 tractor is John Deere Cool-Gard II or JohnFreeze/boil protection
John Deere 620 Coolant Capacity Specs
Coolant capacity
6.5 gal (24.6 L)
Coolant type
John Deere Cool-Gard II
Antifreeze mix
The recommended coolant for the John Deere 620 tractor is John Deere Cool-Gard II or John
Engine horsepower
44 hp
Engine displacement
302.9 cu in (5 L)
John Deere 620 Coolant Capacity Guide
Coolant capacity guide
This model
6.5 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 620 Coolant Service Notes
Coolant capacity note
The useful service number here is 6.5 gal (24.6 L). Keep some extra coolant available because trapped air can lower the level after the first warm-up
Coolant service note
For a full coolant service on the John Deere 620, plan around 6.5 gal (24.6 L) and match the listed coolant guidance: John Deere Cool-Gard II and The recommended coolant for the John Deere 620 tractor is John Deere Cool-Gard II or John
Coolant type note
The John Deere 620 coolant type is John Deere Cool-Gard II. Wrong coolant chemistry can reduce corrosion, freeze and boil protection
Antifreeze mix note
The listed mix for the John Deere 620 is The recommended coolant for the John Deere 620 tractor is John Deere Cool-Gard II or John. Keep the coolant strength in range after a drain, flush or top-up
Refill check
After a drain and refill on the John Deere 620, the cooling system can burp air. Recheck the level after the first warm-up and cool-down cycle
Engine context
The engine context for the John Deere 620 is engine horsepower 44 hp and engine displacement 302.9 cu in (5 L). Use this for comparison only; the refill amount is the coolant capacity above
John Deere 620 Coolant Capacity FAQ
How much coolant should I buy for the John Deere 620?
The cooling system capacity for the John Deere 620 is 6.5 gal (24.6 L). This is the main refill figure for a drain, flush or coolant change
Is John Deere Cool-Gard II listed for the John Deere 620?
For the John Deere 620, the coolant type is listed as John Deere Cool-Gard II. Avoid mixing incompatible coolant products
What mix ratio should I use when refilling the John Deere 620?
For the John Deere 620, the coolant mix is listed as The recommended coolant for the John Deere 620 tractor is John Deere Cool-Gard II or John. Do not dilute the system with too much plain water
Do I fill the John Deere 620 exactly to capacity or check the level marks?
Fill the John Deere 620 slowly, run it with the heater/thermostat cycle where applicable, let it cool and check the level again. That helps catch trapped air
Can I just add coolant to the John Deere 620 if the level is low?
Flush the John Deere 620 cooling system if the coolant is dirty, contaminated, badly diluted or overdue for service. A simple top-up does not fix old coolant chemistry
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.
