The Kubota KL31Z coolant capacity is listed as 2.17 gal (8.2 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota KL31Z Coolant Capacity
| Radiator capacity | 2.17 gal (8.2 L) |
|---|---|
| Coolant type | ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Kubota KL31Z Coolant and Engine Notes
| Coolant capacity note | The Kubota KL31Z’s key coolant figure here is 2.17 gal (8.2 L) for radiator capacity. Use that before buying coolant or draining the system |
|---|---|
| Radiator capacity note | For the Kubota KL31Z, the captured radiator capacity is 2.17 gal (8.2 L). If you are doing a full drain, check the full cooling-system capacity too |
| Coolant type note | For the Kubota KL31Z, coolant type matters as much as capacity. The clean captured value is ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix note | For the Kubota KL31Z, 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 |
| Refill note | The practical service move for the Kubota KL31Z: buy enough coolant for 2.17 gal (8.2 L), fill to spec, run the engine, then recheck the radiator and overflow bottle after cooling |
Kubota KL31Z Coolant Capacity FAQ
How much coolant does the Kubota KL31Z take?
The main coolant amount captured for the Kubota KL31Z is 2.17 gal (8.2 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 KL31Z?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota KL31Z, the captured coolant type is ethylene glycol-based coolant and ASTM D3306 compatible.
What antifreeze mix does the Kubota KL31Z use?
The captured antifreeze mix for the Kubota KL31Z 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 KL31Z 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.
Should I trust the listed Kubota KL31Z coolant capacity blindly?
Use 2.17 gal (8.2 L) as a guide, but confirm with the operator manual and final fill level. Trapped air, hoses and recovery bottles can affect the real refill amount.
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.
