The John Deere 4420 takes 5.57 gal (21.1 L) of coolant. Use coolant compatible with John Deere Cool-Gard II and follow the listed 50/50 coolant and water mix guidance.
John Deere 4420 Coolant Capacity Specs
| Coolant capacity | 5.57 gal (21.1 L) |
|---|---|
| Coolant type | John Deere Cool-Gard II |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine horsepower | 102 hp |
| Engine displacement | 328.9 cu in (5.39 L) |
John Deere 4420 Coolant Capacity Guide
Coolant capacity guide
Compared with a broad compact tractor guide, not the full tractor dataset.
John Deere 4420 Coolant Service Notes
| Coolant capacity note | The useful service number here is 5.57 gal (21.1 L). Keep some extra coolant available because trapped air can lower the level after the first warm-up |
|---|---|
| Coolant service note | The John Deere 4420 cooling system should be refilled close to 5.57 gal (21.1 L), with coolant choice guided by John Deere Cool-Gard II and 50/50 coolant and water mix |
| Coolant type note | Coolant type matters on the John Deere 4420. The listed type is John Deere Cool-Gard II, so avoid mixing random antifreeze unless compatibility is clear |
| Antifreeze mix note | For the John Deere 4420, the antifreeze mix is listed as 50/50 coolant and water mix. Use the correct mix rather than topping up repeatedly with plain water |
| Refill check | Use the 5.57 gal (21.1 L) capacity to buy enough coolant for the John Deere 4420, but finish the job by checking the actual level marks |
| Engine context | The John Deere 4420 engine specs listed with this page are engine horsepower 102 hp and engine displacement 328.9 cu in (5.39 L). They help identify the machine, but they are not a substitute for the coolant capacity |
John Deere 4420 Coolant Capacity FAQ
How much coolant should I buy for the John Deere 4420?
Use 5.57 gal (21.1 L) as the coolant-change amount for the John Deere 4420. The final level should still be checked at the radiator or overflow bottle
Is John Deere Cool-Gard II listed for the John Deere 4420?
Use coolant compatible with John Deere Cool-Gard II for the John Deere 4420. Capacity tells you how much; coolant type tells you what to use
What antifreeze ratio is listed for the John Deere 4420?
The John Deere 4420 antifreeze guidance is 50/50 coolant and water mix. Check the coolant label before mixing concentrate and water
Do I fill the John Deere 4420 exactly to capacity or check the level marks?
The 5.57 gal (21.1 L) number helps you plan the refill. The actual finish point is the correct level mark after warm-up, cool-down and leak checking
Can I just add coolant to the John Deere 4420 if the level is low?
For the John Deere 4420, use the 5.57 gal (21.1 L) capacity when planning a full drain or flush. Topping up only solves low level, not worn-out coolant
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.
