The Kubota ZD1021 coolant capacity is listed as 2.17 gal (8.2 L). It also lists coolant type ethylene glycol-based coolant and Kubota Genuine Coolant and antifreeze mix 50/50 coolant and water mix.
Kubota ZD1021 Coolant Capacity
| Cooling system capacity | 2.17 gal (8.2 L) |
|---|---|
| Coolant type | ethylene glycol-based coolant and Kubota Genuine Coolant |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine model | D902-E4-ZD-2 |
| Engine horsepower | 21.6 hp (16.1 kW) |
| Engine displacement | 0.9 L (54.8 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota ZD1021 Coolant and Engine Notes
| Coolant capacity note | The Kubota ZD1021 coolant spec points to 2.17 gal (8.2 L). Do not rely on the radiator-only amount if the full cooling-system capacity is available |
|---|---|
| Coolant type note | Use the right coolant formula for the Kubota ZD1021: 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 | The 50/50 coolant and water mix mix gives the Kubota ZD1021 coolant system a sensible balance of freeze protection, boil protection and corrosion protection |
| Engine context note | The Kubota ZD1021 engine data captured here is engine model D902-E4-ZD-2, engine horsepower 21.6 hp (16.1 kW), and displacement 0.9 L (54.8 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 ZD1021, plan around 2.17 gal (8.2 L) and confirm the final level after air works out of the system |
Kubota ZD1021 Coolant Capacity FAQ
What is the Kubota ZD1021 coolant capacity?
The Kubota ZD1021 coolant capacity is listed as 2.17 gal (8.2 L) for cooling system 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 ZD1021?
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 ZD1021?
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 ZD1021 is 50/50 coolant and water mix.
How often should I change coolant in the Kubota ZD1021?
The captured coolant change interval for the Kubota ZD1021 is the service interval in the operator manual. If service history is unknown, changing it is usually smarter than guessing.
Why does the Kubota ZD1021 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota ZD1021, the supporting engine data is engine model D902-E4-ZD-2, horsepower 21.6 hp (16.1 kW), and displacement 0.9 L (54.8 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.
