The Kubota BX1850 coolant capacity is listed as 1.65 gal (6.2 L). It also lists coolant type ethylene glycol-based coolant and antifreeze mix Kubota BX1850 tractors require a 50: 50 ethylene glycol-based coolant-to-water mix for proper cooling and freeze protection.
Coolant capacity1.65 gal (6.2 L)
Coolant typeethylene glycol-based coolant
Antifreeze mixKubota BX1850 tractors require a 50: 50 ethylene glycol-based coolant-to-water mix for proper cooling and freeze protection
Kubota BX1850 Coolant Capacity
Coolant capacity
1.65 gal (6.2 L)
Coolant type
ethylene glycol-based coolant
Antifreeze mix
Kubota BX1850 tractors require a 50: 50 ethylene glycol-based coolant-to-water mix for proper cooling and freeze protection
Engine horsepower
18 hp (13.4 kW)
Engine displacement
0.7 L (42.7 cu in)
Coolant Capacity Comparison Chart
Coolant capacity comparison
This model
1.65 gal
Average
2 gal
Low
1 gal
High
4 gal
Engine horsepower comparison
This model
18 hp
Average
18 hp
Low
10 hp
High
30 hp
Engine displacement comparison
This model
0.7 L
Average
0.9 L
Low
0.5 L
High
1.5 L
Kubota BX1850 Coolant and Engine Notes
Coolant capacity note
For the Kubota BX1850, 1.65 gal (6.2 L) is the main coolant capacity captured. Use it as a refill planning number, then confirm the final level at the machine
Coolant type note
The captured coolant type for the Kubota BX1850 is ethylene glycol-based coolant. Do not mix unknown coolant types unless the label and manual say they are compatible
Antifreeze mix note
The Kubota BX1850 tractors require a 50: 50 ethylene glycol-based coolant-to-water mix for proper cooling and freeze protection mix gives the Kubota BX1850 coolant system a sensible balance of freeze protection, boil protection and corrosion protection
Engine context note
The Kubota BX1850 engine data captured here is engine horsepower 18 hp (13.4 kW) and displacement 0.7 L (42.7 cu in). Bigger engines usually need more coolant and more careful refill bleeding
Refill note
For a coolant change on the Kubota BX1850, 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 BX1850 Coolant Capacity FAQ
What is the cooling system capacity of the Kubota BX1850?
The Kubota BX1850 cooling system capacity is shown as 1.65 gal (6.2 L). That is the number to use before draining the system.
What coolant type should I use in the Kubota BX1850?
Use ethylene glycol-based coolant. 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 BX1850?
Not for normal long-term use. The Kubota BX1850 should use Kubota BX1850 tractors require a 50: 50 ethylene glycol-based coolant-to-water mix for proper cooling and freeze protection or the manual’s specified coolant mix so the system gets corrosion, freeze and boil protection.
Does old coolant matter in the Kubota BX1850?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Kubota BX1850 is the service interval in the operator manual.
Why does the Kubota BX1850 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota BX1850, the supporting engine data is horsepower 18 hp (13.4 kW) and displacement 0.7 L (42.7 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.
