The Kubota M5640SU coolant capacity is listed as 10.6 gal (40.1 L). It also lists coolant type ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible.
Kubota M5640SU Coolant Capacity
| Coolant capacity | 10.6 gal (40.1 L) |
|---|---|
| Cooling system capacity | 10.6 gal (40.1 L) |
| Coolant type | ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible |
| Engine horsepower | 56 hp (41.8 kW) |
| Engine displacement | 2.4 L (146.5 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota M5640SU Coolant and Engine Notes
| Coolant capacity note | For service planning, the Kubota M5640SU should be treated as 10.6 gal (40.1 L) coolant capacity. That is a big cooling system where under-buying coolant gets annoying fast |
|---|---|
| Coolant type note | The captured coolant type for the Kubota M5640SU is ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible. Do not mix unknown coolant types unless the label and manual say they are compatible |
| Engine context note | Engine context for the Kubota M5640SU: engine horsepower 56 hp (41.8 kW) and displacement 2.4 L (146.5 cu in). Engine size helps explain why coolant capacity changes between models |
| Refill note | For a coolant change on the Kubota M5640SU, 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 M5640SU Coolant Capacity FAQ
How much coolant does the Kubota M5640SU take?
The main coolant amount captured for the Kubota M5640SU is 10.6 gal (40.1 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 M5640SU?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota M5640SU, the captured coolant type is ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible.
What antifreeze mix does the Kubota M5640SU use?
The captured antifreeze mix for the Kubota M5640SU is the coolant mix specified in the manual. A 50/50-style mix is the common practical answer unless your manual or climate calls for something different.
When should the Kubota M5640SU 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.
What engine specs affect Kubota M5640SU coolant capacity?
The captured engine context is horsepower 56 hp (41.8 kW) and displacement 2.4 L (146.5 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.
