The Kubota ZD25 coolant capacity is listed as 2.17 gal (8.2 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 ZD25 Coolant Capacity
| Coolant capacity | 2.17 gal (8.2 L) |
|---|---|
| Cooling system capacity | 2.17 gal (8.2 L) |
| Radiator capacity | 2.17 gal (8.2 L) |
| Coolant type | ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine model | D902 |
| Engine horsepower | 25 hp (18.6 kW) |
| Engine displacement | 1 L (61.1 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota ZD25 Coolant and Engine Notes
| Coolant capacity note | The Kubota ZD25’s key coolant figure here is 2.17 gal (8.2 L) for coolant capacity. Use that before buying coolant or draining the system |
|---|---|
| Radiator capacity note | Radiator capacity is listed as 2.17 gal (8.2 L). The full cooling system can be higher because coolant also sits in the engine and hoses |
| Coolant type note | For the Kubota ZD25, coolant type matters as much as capacity. The clean captured value is ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible |
| Antifreeze mix note | The 50/50 coolant and water mix mix gives the Kubota ZD25 coolant system a sensible balance of freeze protection, boil protection and corrosion protection |
| Engine context note | The Kubota ZD25 engine data captured here is engine model D902, engine horsepower 25 hp (18.6 kW), and displacement 1 L (61.1 cu in). Bigger engines usually need more coolant and more careful refill bleeding |
| Refill note | The practical service move for the Kubota ZD25: buy enough coolant for 2.17 gal (8.2 L), fill to spec, run the engine, then recheck the radiator and overflow bottle after cooling |
Kubota ZD25 Coolant Capacity FAQ
What is the Kubota ZD25 coolant capacity?
The Kubota ZD25 coolant capacity is listed as 2.17 gal (8.2 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 ZD25?
No. Use ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible 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 ZD25?
Premixed coolant can be fine if it matches ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible and the required mix. The captured mix for the Kubota ZD25 is 50/50 coolant and water mix.
How often should I change coolant in the Kubota ZD25?
The captured coolant change interval for the Kubota ZD25 is the service interval in the operator manual. If service history is unknown, changing it is usually smarter than guessing.
Why does the Kubota ZD25 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota ZD25, the supporting engine data is engine model D902, horsepower 25 hp (18.6 kW), and displacement 1 L (61.1 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.
