The Kubota TG1860G coolant capacity is listed as 1.66 gal (6.3 L). It also lists antifreeze mix 50/50 coolant and water mix.
Kubota TG1860G Coolant Capacity
| Cooling system capacity | 1.66 gal (6.3 L) |
|---|---|
| Radiator capacity | 1.66 gal (6.3 L) |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine horsepower | 18 hp (13.4 kW) |
| Engine displacement | 0.6 L (35.7 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota TG1860G Coolant and Engine Notes
| Coolant capacity note | The headline cooling-system number for the Kubota TG1860G is 1.66 gal (6.3 L). Buy enough coolant before opening the drain plug |
|---|---|
| Radiator capacity note | The Kubota TG1860G radiator figure is 1.66 gal (6.3 L). Treat it as radiator context, not always the complete refill amount |
| Antifreeze mix note | The Kubota TG1860G 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 TG1860G, the supporting engine specs are engine horsepower 18 hp (13.4 kW) and displacement 0.6 L (35.7 cu in). Use them as context beside the coolant capacity, not as a replacement for the manual |
| Refill note | The practical service move for the Kubota TG1860G: buy enough coolant for 1.66 gal (6.3 L), fill to spec, run the engine, then recheck the radiator and overflow bottle after cooling |
Kubota TG1860G Coolant Capacity FAQ
What is the Kubota TG1860G coolant capacity?
The Kubota TG1860G coolant capacity is listed as 1.66 gal (6.3 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 TG1860G?
No. Use the coolant type specified in the manual 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 TG1860G?
Premixed coolant can be fine if it matches the coolant type specified in the manual and the required mix. The captured mix for the Kubota TG1860G is 50/50 coolant and water mix.
How often should I change coolant in the Kubota TG1860G?
The captured coolant change interval for the Kubota TG1860G is the service interval in the operator manual. If service history is unknown, changing it is usually smarter than guessing.
Why does the Kubota TG1860G coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota TG1860G, the supporting engine data is horsepower 18 hp (13.4 kW) and displacement 0.6 L (35.7 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.

