The Kubota M115A coolant capacity is listed as 8.66 gal (32.8 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota M115A Coolant Capacity
| Coolant capacity | 8.66 gal (32.8 L) |
|---|---|
| Coolant type | ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine model | V2403-M-DI-E4 |
| Engine horsepower | 115 hp (85.8 kW) |
| Engine displacement | 3.8 L (231.9 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota M115A Coolant and Engine Notes
| Coolant capacity note | The headline cooling-system number for the Kubota M115A is 8.66 gal (32.8 L). Buy enough coolant before opening the drain plug |
|---|---|
| Coolant type note | For the Kubota M115A, 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 M115A, 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 M115A: engine model V2403-M-DI-E4, engine horsepower 115 hp (85.8 kW), and displacement 3.8 L (231.9 cu in). Engine size helps explain why coolant capacity changes between models |
| Refill note | The practical service move for the Kubota M115A: buy enough coolant for 8.66 gal (32.8 L), fill to spec, run the engine, then recheck the radiator and overflow bottle after cooling |
Kubota M115A Coolant Capacity FAQ
What is the cooling system capacity of the Kubota M115A?
The Kubota M115A cooling system capacity is shown as 8.66 gal (32.8 L). That is the number to use before draining the system.
What coolant type should I use in the Kubota M115A?
Use ethylene glycol-based 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 M115A?
Not for normal long-term use. The Kubota M115A 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 M115A?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Kubota M115A is the service interval in the operator manual.
Why does the Kubota M115A coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota M115A, the supporting engine data is engine model V2403-M-DI-E4, horsepower 115 hp (85.8 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.
