The Kubota GB16 coolant capacity is listed as 1.66 gal (6.3 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota GB16 Coolant Capacity
| Coolant capacity | 1.65 gal (6.2 L) |
|---|---|
| Cooling system capacity | 1.66 gal (6.3 L) |
| Radiator capacity | 1.65 gal (6.2 L) |
| Coolant type | ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Coolant change interval | every 2 years |
| Engine model | D722 |
| Engine horsepower | 16.1 hp (12 kW) |
| Engine displacement | 0.9 L (54.9 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota GB16 Coolant and Engine Notes
| Coolant capacity note | For the Kubota GB16, 1.66 gal (6.3 L) is the main coolant capacity captured. Use it as a refill planning number, then confirm the final level at the machine |
|---|---|
| Radiator capacity note | Radiator capacity is listed as 1.65 gal (6.2 L). The full cooling system can be higher because coolant also sits in the engine and hoses |
| Coolant type note | The captured coolant type for the Kubota GB16 is ethylene glycol-based coolant and ASTM D3306 compatible. Do not mix unknown coolant types unless the label and manual say they are compatible |
| Antifreeze mix note | The 50/50 coolant and water mix mix gives the Kubota GB16 coolant system a sensible balance of freeze protection, boil protection and corrosion protection |
| Coolant change interval note | The captured coolant change interval for the Kubota GB16 is every 2 years. Old coolant can lose corrosion protection even if the tractor still runs cool |
| Engine context note | The Kubota GB16 engine data captured here is engine model D722, engine horsepower 16.1 hp (12 kW), and displacement 0.9 L (54.9 cu in). Bigger engines usually need more coolant and more careful refill bleeding |
| Refill note | For a coolant change on the Kubota GB16, do not just dump in coolant and walk away. Fill slowly, run it up to temperature, cool it down and top up as needed |
Kubota GB16 Coolant Capacity FAQ
How much coolant does the Kubota GB16 take?
The main coolant amount captured for the Kubota GB16 is 1.66 gal (6.3 L). Buy a little extra so you can top up after the engine warms up and cools down.
Does coolant type matter on the Kubota GB16?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota GB16, the captured coolant type is ethylene glycol-based coolant and ASTM D3306 compatible.
What antifreeze mix does the Kubota GB16 use?
The captured antifreeze mix for the Kubota GB16 is 50/50 coolant and water mix. A 50/50-style mix is the common practical answer unless your manual or climate calls for something different.
When should the Kubota GB16 coolant be replaced?
Use every 2 years as the service guide. Coolant can look okay but still lose corrosion protection over time.
Why does the Kubota GB16 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota GB16, the supporting engine data is engine model D722, horsepower 16.1 hp (12 kW), and displacement 0.9 L (54.9 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.
