The John Deere 4100 coolant capacity is 0.63 gal (2.4 L). The listed coolant is John Deere Cool-Gard II, with 40/60 coolant and water mix guidance.
John Deere 4100 Coolant Capacity Specs
| Coolant capacity | 0.63 gal (2.4 L) |
|---|---|
| Coolant type | John Deere Cool-Gard II |
| Antifreeze mix | 40/60 coolant and water mix |
| Engine horsepower | 20 hp |
| Engine displacement | 61 cu in (1 L) |
John Deere 4100 Coolant Capacity Guide
Coolant capacity guide
Compared with a broad compact tractor guide, not the full tractor dataset.
John Deere 4100 Coolant Service Notes
| Coolant capacity note | The useful service number here is 0.63 gal (2.4 L). Keep some extra coolant available because trapped air can lower the level after the first warm-up |
|---|---|
| Coolant service note | Use 0.63 gal (2.4 L) as the refill amount for the John Deere 4100, but do not mix coolant types blindly. The listed coolant detail is John Deere Cool-Gard II and 40/60 coolant and water mix |
| Coolant type note | The listed coolant type for the John Deere 4100 is John Deere Cool-Gard II. Match the coolant chemistry before topping up or flushing the system |
| Antifreeze mix note | The listed antifreeze mix for the John Deere 4100 is 40/60 coolant and water mix. Mix ratio affects freeze protection, boil protection and corrosion control |
| Refill check | When refilling the John Deere 4100, do not pour in 0.63 gal (2.4 L) and walk away. Fill slowly, run the engine, let it cool and recheck the level |
| Engine context | The engine context for the John Deere 4100 is engine horsepower 20 hp and engine displacement 61 cu in (1 L). Use this for comparison only; the refill amount is the coolant capacity above |
John Deere 4100 Coolant Capacity FAQ
What is the John Deere 4100 cooling system capacity?
The John Deere 4100 coolant capacity is 0.63 gal (2.4 L). Use this as the cooling-system refill amount and recheck the level after warm-up and cool-down
What coolant is recommended for the John Deere 4100?
Use John Deere Cool-Gard II or a coolant that clearly meets the same requirement for the John Deere 4100. Do not rely on color alone because coolant color is not a perfect chemistry guide
Does the John Deere 4100 need a 50/50 coolant mix?
Use the listed 40/60 coolant and water mix mix when refilling the John Deere 4100. Too much water weakens protection; too much concentrate can also reduce cooling performance
Can the John Deere 4100 coolant level drop after refilling?
The John Deere 4100 may need a small top-up after the first heat cycle. Fill slowly, watch for leaks and recheck the level when cool
Should I flush the John Deere 4100 cooling system or just top it up?
Use a full coolant service on the John Deere 4100 when the system needs fresh coolant, not just more coolant. Plan the refill around the 0.63 gal (2.4 L) capacity
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.


