The Kubota ZG123S coolant capacity is listed as 2.3 gal (8.7 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota ZG123S Coolant Capacity
| Coolant capacity | 2.3 gal (8.7 L) |
|---|---|
| Coolant type | ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine horsepower | 23 hp (17.2 kW) |
| Engine displacement | 0.7 L (44.2 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota ZG123S Coolant and Engine Notes
| Coolant capacity note | The Kubota ZG123S coolant spec points to 2.3 gal (8.7 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 ZG123S: 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 Kubota ZG123S antifreeze mix is listed as 50/50 coolant and water mix. That is the normal protection range for freezing, boiling and corrosion control |
| Engine context note | For the Kubota ZG123S, the supporting engine specs are engine horsepower 23 hp (17.2 kW) and displacement 0.7 L (44.2 cu in). Use them as context beside the coolant capacity, not as a replacement for the manual |
| Refill note | Coolant changes are simple but easy to do sloppily. On the Kubota ZG123S, plan around 2.3 gal (8.7 L) and confirm the final level after air works out of the system |
Kubota ZG123S Coolant Capacity FAQ
What is the Kubota ZG123S coolant capacity?
The Kubota ZG123S coolant capacity is listed as 2.3 gal (8.7 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 ZG123S?
No. Use ethylene glycol-based 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 ZG123S?
Premixed coolant can be fine if it matches ethylene glycol-based coolant and ASTM D3306 compatible and the required mix. The captured mix for the Kubota ZG123S is 50/50 coolant and water mix.
How often should I change coolant in the Kubota ZG123S?
The captured coolant change interval for the Kubota ZG123S is the service interval in the operator manual. If service history is unknown, changing it is usually smarter than guessing.
Why does the Kubota ZG123S coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota ZG123S, the supporting engine data is horsepower 23 hp (17.2 kW) and displacement 0.7 L (44.2 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.
