The Kubota M105S coolant capacity is listed as 12.5 gal (47.3 L). It also lists coolant type ethylene glycol-based coolant and Kubota Genuine Coolant.
Kubota M105S Coolant Capacity
| Coolant capacity | 12.5 gal (47.3 L) |
|---|---|
| Cooling system capacity | 11.81 gal (44.7 L) |
| Coolant type | ethylene glycol-based coolant and Kubota Genuine Coolant |
| Engine horsepower | 105 hp (78.3 kW) |
| Engine displacement | 3.8 L (231.9 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota M105S Coolant and Engine Notes
| Coolant capacity note | For the Kubota M105S, 12.5 gal (47.3 L) is the main coolant capacity captured. Use it as a refill planning number, then confirm the final level at the machine |
|---|---|
| Coolant type note | Use the right coolant formula for the Kubota M105S: ethylene glycol-based coolant and Kubota Genuine Coolant. Cheap wrong coolant is not a smart saving if it causes corrosion or deposits |
| Engine context note | For the Kubota M105S, the supporting engine specs are engine horsepower 105 hp (78.3 kW) and displacement 3.8 L (231.9 cu in). Use them as context beside the coolant capacity, not as a replacement for the manual |
| Refill note | Coolant changes are simple but easy to do sloppily. On the Kubota M105S, plan around 12.5 gal (47.3 L) and confirm the final level after air works out of the system |
Kubota M105S Coolant Capacity FAQ
How much coolant does the Kubota M105S take?
The main coolant amount captured for the Kubota M105S is 12.5 gal (47.3 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 M105S?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota M105S, the captured coolant type is ethylene glycol-based coolant and Kubota Genuine Coolant.
What antifreeze mix does the Kubota M105S use?
The captured antifreeze mix for the Kubota M105S is the coolant mix specified in the manual. A 50/50-style mix is the common practical answer unless your manual or climate calls for something different.
When should the Kubota M105S 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 M105S coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota M105S, the supporting engine data is horsepower 105 hp (78.3 kW) and displacement 3.8 L (231.9 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.

