The Kubota GL337 coolant capacity is listed as 1.68 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 GL337 Coolant Capacity
| Coolant capacity | 1.65 gal (6.2 L) |
|---|---|
| Cooling system capacity | 1.68 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 |
| Engine model | V1505 |
| Engine horsepower | 39.8 hp (29.7 kW) |
| Engine displacement | 1.6 L (97.6 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota GL337 Coolant and Engine Notes
| Coolant capacity note | The Kubota GL337 coolant spec points to 1.68 gal (6.3 L). Do not rely on the radiator-only amount if the full cooling-system capacity is available |
|---|---|
| Radiator capacity note | The Kubota GL337 radiator figure is 1.65 gal (6.2 L). Treat it as radiator context, not always the complete refill amount |
| Coolant type note | The captured coolant type for the Kubota GL337 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 Kubota GL337 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 GL337, the supporting engine specs are engine model V1505, engine horsepower 39.8 hp (29.7 kW), and displacement 1.6 L (97.6 cu in). Use them as context beside the coolant capacity, not as a replacement for the manual |
| Refill note | For a coolant change on the Kubota GL337, 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 GL337 Coolant Capacity FAQ
How much coolant does the Kubota GL337 take?
The main coolant amount captured for the Kubota GL337 is 1.68 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 GL337?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota GL337, the captured coolant type is ethylene glycol-based coolant and ASTM D3306 compatible.
What antifreeze mix does the Kubota GL337 use?
The captured antifreeze mix for the Kubota GL337 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 GL337 coolant be replaced?
Use the service interval in the operator manual as the service guide. Coolant can look okay but still lose corrosion protection over time.
Why does the Kubota GL337 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota GL337, the supporting engine data is engine model V1505, horsepower 39.8 hp (29.7 kW), and displacement 1.6 L (97.6 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.
