The Kubota MX5400 coolant capacity is listed as 2.8 gal (10.6 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota MX5400 Coolant Capacity
| Cooling system capacity | 2.8 gal (10.6 L) |
|---|---|
| Coolant type | ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine horsepower | 55.5 hp (41.4 kW) |
| Engine displacement | 2.4 L (148.6 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota MX5400 Coolant and Engine Notes
| Coolant capacity note | The Kubota MX5400’s key coolant figure here is 2.8 gal (10.6 L) for cooling system capacity. Use that before buying coolant or draining the system |
|---|---|
| Coolant type note | Use the right coolant formula for the Kubota MX5400: ethylene glycol-based coolant and ASTM D3306 compatible. Cheap wrong coolant is not a smart saving if it causes corrosion or deposits |
| Antifreeze mix note | The 50/50 coolant and water mix mix gives the Kubota MX5400 coolant system a sensible balance of freeze protection, boil protection and corrosion protection |
| Engine context note | The Kubota MX5400 engine data captured here is engine horsepower 55.5 hp (41.4 kW) and displacement 2.4 L (148.6 cu in). Bigger engines usually need more coolant and more careful refill bleeding |
| Refill note | Coolant changes are simple but easy to do sloppily. On the Kubota MX5400, plan around 2.8 gal (10.6 L) and confirm the final level after air works out of the system |
Kubota MX5400 Coolant Capacity FAQ
What is the cooling system capacity of the Kubota MX5400?
The Kubota MX5400 cooling system capacity is shown as 2.8 gal (10.6 L). That is the number to use before draining the system.
What coolant type should I use in the Kubota MX5400?
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 MX5400?
Not for normal long-term use. The Kubota MX5400 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 MX5400?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Kubota MX5400 is the service interval in the operator manual.
What engine specs affect Kubota MX5400 coolant capacity?
The captured engine context is horsepower 55.5 hp (41.4 kW) and displacement 2.4 L (148.6 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.
