The Kubota M5400 coolant capacity is listed as 2.12 gal (8 L). It also lists coolant type ethylene glycol-based coolant and Kubota Genuine Coolant and antifreeze mix 50/50 coolant and water mix.
Kubota M5400 Coolant Capacity
| Coolant capacity | 2.12 gal (8 L) |
|---|---|
| Cooling system capacity | 2.12 gal (8 L) |
| Radiator capacity | 2.12 gal (8 L) |
| Coolant type | ethylene glycol-based coolant and Kubota Genuine Coolant |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine horsepower | 58 hp (43.3 kW) |
| Engine displacement | 2.7 L (167.6 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota M5400 Coolant and Engine Notes
| Coolant capacity note | The headline cooling-system number for the Kubota M5400 is 2.12 gal (8 L). Buy enough coolant before opening the drain plug |
|---|---|
| Radiator capacity note | For the Kubota M5400, the captured radiator capacity is 2.12 gal (8 L). If you are doing a full drain, check the full cooling-system capacity too |
| Coolant type note | Use the right coolant formula for the Kubota M5400: ethylene glycol-based coolant and Kubota Genuine Coolant. Cheap wrong coolant is not a smart saving if it causes corrosion or deposits |
| Antifreeze mix note | For the Kubota M5400, 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 M5400: engine horsepower 58 hp (43.3 kW) and displacement 2.7 L (167.6 cu in). Engine size helps explain why coolant capacity changes between models |
| Refill note | Coolant changes are simple but easy to do sloppily. On the Kubota M5400, plan around 2.12 gal (8 L) and confirm the final level after air works out of the system |
Kubota M5400 Coolant Capacity FAQ
What is the Kubota M5400 coolant capacity?
The Kubota M5400 coolant capacity is listed as 2.12 gal (8 L) for coolant capacity. Use this as the refill planning number and confirm the final level at the radiator or overflow bottle.
Can I use any coolant in the Kubota M5400?
No. Use ethylene glycol-based coolant and Kubota Genuine Coolant or a coolant that clearly matches the manual’s required spec. Wrong coolant can create corrosion, deposits or seal problems.
Is premixed coolant okay for the Kubota M5400?
Premixed coolant can be fine if it matches ethylene glycol-based coolant and Kubota Genuine Coolant and the required mix. The captured mix for the Kubota M5400 is 50/50 coolant and water mix.
How often should I change coolant in the Kubota M5400?
The captured coolant change interval for the Kubota M5400 is the service interval in the operator manual. If service history is unknown, changing it is usually smarter than guessing.
What engine specs affect Kubota M5400 coolant capacity?
The captured engine context is horsepower 58 hp (43.3 kW) and displacement 2.7 L (167.6 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.

