The Kubota B6000 coolant capacity is listed as 1.22 gal (4.6 L). It also lists coolant type ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota B6000 Coolant Capacity
| Coolant capacity | 1.22 gal (4.6 L) |
|---|---|
| Coolant type | ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine displacement | 0.6 L (36.6 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine displacement comparison
Kubota B6000 Coolant and Engine Notes
| Coolant capacity note | The Kubota B6000 coolant spec points to 1.22 gal (4.6 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 B6000 is ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible. Do not mix unknown coolant types unless the label and manual say they are compatible |
| Antifreeze mix note | The 50/50 coolant and water mix mix gives the Kubota B6000 coolant system a sensible balance of freeze protection, boil protection and corrosion protection |
| Engine context note | The Kubota B6000 engine data captured here is displacement 0.6 L (36.6 cu in). Bigger engines usually need more coolant and more careful refill bleeding |
| Refill note | For a coolant change on the Kubota B6000, 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 B6000 Coolant Capacity FAQ
How much coolant does the Kubota B6000 take?
The main coolant amount captured for the Kubota B6000 is 1.22 gal (4.6 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 B6000?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota B6000, the captured coolant type is ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible.
What antifreeze mix does the Kubota B6000 use?
The captured antifreeze mix for the Kubota B6000 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 B6000 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 B6000 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota B6000, the supporting engine data is displacement 0.6 L (36.6 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.

