The Kubota GM64 coolant capacity is listed as 1.64 gal (6.2 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota GM64 Coolant Capacity
| Coolant capacity | 1.64 gal (6.2 L) |
|---|---|
| Cooling system capacity | 1.64 gal (6.2 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 700 hours |
| Engine model | D1105 |
| Engine horsepower | 63 hp (47 kW) |
| Engine displacement | 3.3 L (202.5 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota GM64 Coolant and Engine Notes
| Coolant capacity note | The Kubota GM64 coolant spec points to 1.64 gal (6.2 L). Do not rely on the radiator-only amount if the full cooling-system capacity is available |
|---|---|
| Radiator capacity note | For the Kubota GM64, the captured radiator capacity is 1.65 gal (6.2 L). If you are doing a full drain, check the full cooling-system capacity too |
| Coolant type note | Use the right coolant formula for the Kubota GM64: 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 | For the Kubota GM64, the captured mix is 50/50 coolant and water mix. Straight water is not the right long-term answer unless you are only flushing the system |
| Coolant change interval note | Coolant service for the Kubota GM64 is listed as every 700 hours. If the service history is unknown, a fresh drain and refill is usually the cleaner move |
| Engine context note | Engine context for the Kubota GM64: engine model D1105, engine horsepower 63 hp (47 kW), and displacement 3.3 L (202.5 cu in). Engine size helps explain why coolant capacity changes between models |
| Refill note | Coolant changes are simple but easy to do sloppily. On the Kubota GM64, plan around 1.64 gal (6.2 L) and confirm the final level after air works out of the system |
Kubota GM64 Coolant Capacity FAQ
What is the Kubota GM64 coolant capacity?
The Kubota GM64 coolant capacity is listed as 1.64 gal (6.2 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 GM64?
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 GM64?
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 GM64 is 50/50 coolant and water mix.
How often should I change coolant in the Kubota GM64?
The captured coolant change interval for the Kubota GM64 is every 700 hours. If service history is unknown, changing it is usually smarter than guessing.
What engine specs affect Kubota GM64 coolant capacity?
The captured engine context is engine model D1105, horsepower 63 hp (47 kW), and displacement 3.3 L (202.5 cu in). Engine size is one reason coolant capacity changes between tractors.
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.
