The Kubota M4030SU coolant capacity is listed as 8.66 gal (32.8 L). It also lists coolant type ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible.
ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible
Engine horsepower
51 hp (38 kW)
Engine displacement
2.4 L (148.7 cu in)
Coolant Capacity Comparison Chart
Coolant capacity comparison
This model
8.66 gal
Average
8 gal
Low
4 gal
High
16 gal
Engine horsepower comparison
This model
51 hp
Average
75 hp
Low
40 hp
High
125 hp
Engine displacement comparison
This model
2.4 L
Average
1.7 L
Low
0.9 L
High
3 L
Kubota M4030SU Coolant and Engine Notes
Coolant capacity note
The Kubota M4030SU coolant spec points to 8.66 gal (32.8 L). Do not rely on the radiator-only amount if the full cooling-system capacity is available
Coolant type note
The captured coolant type for the Kubota M4030SU 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
The Kubota M4030SU engine data captured here is engine horsepower 51 hp (38 kW) and displacement 2.4 L (148.7 cu in). Bigger engines usually need more coolant and more careful refill bleeding
Refill note
For a coolant change on the Kubota M4030SU, 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 M4030SU Coolant Capacity FAQ
What is the cooling system capacity of the Kubota M4030SU?
The Kubota M4030SU cooling system capacity is shown as 8.66 gal (32.8 L). That is the number to use before draining the system.
What coolant type should I use in the Kubota M4030SU?
Use ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible. The blunt rule is simple: match the manual’s coolant spec and do not mix unknown coolant formulas.
Should I use straight water in the Kubota M4030SU?
Not for normal long-term use. The Kubota M4030SU should use the coolant mix specified in the manual or the manual’s specified coolant mix so the system gets corrosion, freeze and boil protection.
Does old coolant matter in the Kubota M4030SU?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Kubota M4030SU is the service interval in the operator manual.
Why does the Kubota M4030SU coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota M4030SU, the supporting engine data is horsepower 51 hp (38 kW) and displacement 2.4 L (148.7 cu in).
Official information note
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.
