The Kubota M105X coolant capacity is listed as 3.4 gal (12.9 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 M105X Coolant Capacity
| Coolant capacity | 3.4 gal (12.9 L) |
|---|---|
| Coolant type | ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine horsepower | 105 hp (78.3 kW) |
| Engine displacement | 3.8 L (230 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota M105X Coolant and Engine Notes
| Coolant capacity note | For the Kubota M105X, 3.4 gal (12.9 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 | Coolant type for the Kubota M105X is listed as ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible. The safest move is to use coolant that matches the manual’s spec rather than mixing random formulas |
| Antifreeze mix note | The 50/50 coolant and water mix mix gives the Kubota M105X coolant system a sensible balance of freeze protection, boil protection and corrosion protection |
| Engine context note | The Kubota M105X engine data captured here is engine horsepower 105 hp (78.3 kW) and displacement 3.8 L (230 cu in). Bigger engines usually need more coolant and more careful refill bleeding |
| Refill note | When refilling the Kubota M105X, use 3.4 gal (12.9 L) as the planning number and 50/50 coolant and water mix as the mixture guide. Recheck the level after the thermostat opens |
Kubota M105X Coolant Capacity FAQ
What is the cooling system capacity of the Kubota M105X?
The Kubota M105X cooling system capacity is shown as 3.4 gal (12.9 L). That is the number to use before draining the system.
What coolant type should I use in the Kubota M105X?
Use ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible. The blunt rule is simple: match the manual’s coolant spec and do not mix unknown coolant formulas.
Should I use straight water in the Kubota M105X?
Not for normal long-term use. The Kubota M105X should use 50/50 coolant and water mix or the manual’s specified coolant mix so the system gets corrosion, freeze and boil protection.
Does old coolant matter in the Kubota M105X?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Kubota M105X is the service interval in the operator manual.
What engine specs affect Kubota M105X coolant capacity?
The captured engine context is horsepower 105 hp (78.3 kW) and displacement 3.8 L (230 cu in). Engine size is one reason coolant capacity changes between tractors.
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.
