The Kubota JB19X coolant capacity is listed as 2.17 gal (8.2 L). It also lists coolant type ethylene glycol-based coolant and antifreeze mix 50/50 coolant and water mix.
Coolant capacity2.17 gal (8.2 L)
Coolant typeethylene glycol-based coolant
Antifreeze mix50/50 coolant and water mix
Change intervalevery 700 hours
Kubota JB19X Coolant Capacity
Cooling system capacity
2.17 gal (8.2 L)
Coolant type
ethylene glycol-based coolant
Antifreeze mix
50/50 coolant and water mix
Coolant change interval
every 700 hours
Engine model
D1105
Engine horsepower
18.8 hp (14 kW)
Engine displacement
1 L (61.1 cu in)
Coolant Capacity Comparison Chart
Coolant capacity comparison
This model
2.17 gal
Average
2 gal
Low
1 gal
High
4 gal
Engine horsepower comparison
This model
19 hp
Average
18 hp
Low
10 hp
High
30 hp
Engine displacement comparison
This model
1 L
Average
0.9 L
Low
0.5 L
High
1.5 L
Kubota JB19X Coolant and Engine Notes
Coolant capacity note
The Kubota JB19X coolant spec points to 2.17 gal (8.2 L). Do not rely on the radiator-only amount if the full cooling-system capacity is available
Coolant type note
Use the right coolant formula for the Kubota JB19X: ethylene glycol-based coolant. Cheap wrong coolant is not a smart saving if it causes corrosion or deposits
Antifreeze mix note
The Kubota JB19X 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 JB19X, the service interval is listed as every 700 hours. Time matters too, not just engine hours
Engine context note
For the Kubota JB19X, the supporting engine specs are engine model D1105, engine horsepower 18.8 hp (14 kW), and displacement 1 L (61.1 cu in). Use them as context beside the coolant capacity, not as a replacement for the manual
Refill note
Coolant changes are simple but easy to do sloppily. On the Kubota JB19X, plan around 2.17 gal (8.2 L) and confirm the final level after air works out of the system
Kubota JB19X Coolant Capacity FAQ
How much coolant does the Kubota JB19X take?
The main coolant amount captured for the Kubota JB19X is 2.17 gal (8.2 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 JB19X?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota JB19X, the captured coolant type is ethylene glycol-based coolant.
What antifreeze mix does the Kubota JB19X use?
The captured antifreeze mix for the Kubota JB19X 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 JB19X coolant be replaced?
Use every 700 hours as the service guide. Coolant can look okay but still lose corrosion protection over time.
Why does the Kubota JB19X coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota JB19X, the supporting engine data is engine model D1105, horsepower 18.8 hp (14 kW), and displacement 1 L (61.1 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.
