The Kubota BX1800 coolant capacity is listed as 1.19 gal (4.5 L). It also lists coolant type ethylene glycol-based coolant and antifreeze mix 50/50 coolant and water mix.
Kubota BX1800 Coolant Capacity
| Cooling system capacity | 1.19 gal (4.5 L) |
|---|---|
| Coolant type | ethylene glycol-based coolant |
| Antifreeze mix | 50/50 coolant and water mix |
| Coolant change interval | every 2 years |
| Engine horsepower | 18 hp (13.4 kW) |
| Engine displacement | 0.7 L (42.7 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota BX1800 Coolant and Engine Notes
| Coolant capacity note | For the Kubota BX1800, 1.19 gal (4.5 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 | Coolant type for the Kubota BX1800 is listed as ethylene glycol-based coolant. The safest move is to use coolant that matches the manual’s spec rather than mixing random formulas |
| Antifreeze mix note | The Kubota BX1800 antifreeze mix is listed as 50/50 coolant and water mix. That is the normal protection range for freezing, boiling and corrosion control |
| Coolant change interval note | For the Kubota BX1800, the service interval is listed as every 2 years. Time matters too, not just engine hours |
| Engine context note | For the Kubota BX1800, the supporting engine specs are engine horsepower 18 hp (13.4 kW) and displacement 0.7 L (42.7 cu in). Use them as context beside the coolant capacity, not as a replacement for the manual |
| Refill note | When refilling the Kubota BX1800, use 1.19 gal (4.5 L) as the planning number and 50/50 coolant and water mix as the mixture guide. Recheck the level after the thermostat opens |
Kubota BX1800 Coolant Capacity FAQ
How much coolant does the Kubota BX1800 take?
The main coolant amount captured for the Kubota BX1800 is 1.19 gal (4.5 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 BX1800?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota BX1800, the captured coolant type is ethylene glycol-based coolant.
What antifreeze mix does the Kubota BX1800 use?
The captured antifreeze mix for the Kubota BX1800 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 BX1800 coolant be replaced?
Use every 2 years as the service guide. Coolant can look okay but still lose corrosion protection over time.
What engine specs affect Kubota BX1800 coolant capacity?
The captured engine context is horsepower 18 hp (13.4 kW) and displacement 0.7 L (42.7 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.
