The Kubota M120 coolant capacity is listed as 15.25 gal (57.7 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota M120 Coolant Capacity
| Cooling system capacity | 15.25 gal (57.7 L) |
|---|---|
| Coolant type | ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine horsepower | 120 hp (89.5 kW) |
| Engine displacement | 5.8 L (356 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota M120 Coolant and Engine Notes
| Coolant capacity note | The Kubota M120 coolant spec points to 15.25 gal (57.7 L). Do not rely on the radiator-only amount if the full cooling-system capacity is available |
|---|---|
| Coolant type note | The captured coolant type for the Kubota M120 is ethylene glycol-based coolant and ASTM D3306 compatible. Do not mix unknown coolant types unless the label and manual say they are compatible |
| Antifreeze mix note | For the Kubota M120, the captured mix is 50/50 coolant and water mix. Straight water is not the right long-term answer unless you are only flushing the system |
| Engine context note | Engine context for the Kubota M120: engine horsepower 120 hp (89.5 kW) and displacement 5.8 L (356 cu in). Engine size helps explain why coolant capacity changes between models |
| Refill note | For a coolant change on the Kubota M120, do not just dump in coolant and walk away. Fill slowly, run it up to temperature, cool it down and top up as needed |
Kubota M120 Coolant Capacity FAQ
How much coolant does the Kubota M120 take?
The main coolant amount captured for the Kubota M120 is 15.25 gal (57.7 L). Buy a little extra so you can top up after the engine warms up and cools down.
Does coolant type matter on the Kubota M120?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota M120, the captured coolant type is ethylene glycol-based coolant and ASTM D3306 compatible.
What antifreeze mix does the Kubota M120 use?
The captured antifreeze mix for the Kubota M120 is 50/50 coolant and water mix. A 50/50-style mix is the common practical answer unless your manual or climate calls for something different.
When should the Kubota M120 coolant be replaced?
Use the service interval in the operator manual as the service guide. Coolant can look okay but still lose corrosion protection over time.
Why does the Kubota M120 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota M120, the supporting engine data is horsepower 120 hp (89.5 kW) and displacement 5.8 L (356 cu in).
Mistakes do happen. Tractor coolant specs can change by year, market, engine, radiator, cab/heater setup and service procedure. Please check the operator manual, decal information and official kubotausa.com website for official information before draining or refilling the cooling system.
