The Kubota B1161 coolant capacity is listed as 1.66 gal (6.3 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the B1161 tractor to protect against freezing and overheating.
Kubota B1161 Coolant Capacity
| Cooling system capacity | 1.66 gal (6.3 L) |
|---|---|
| Coolant type | ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix | Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the B1161 tractor to protect against freezing and overheating |
| Coolant change interval | every 700 hours |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Kubota B1161 Coolant and Engine Notes
| Coolant capacity note | For service planning, the Kubota B1161 should be treated as 1.66 gal (6.3 L) coolant capacity. That is a compact tractor cooling system where a normal premixed coolant jug may cover most of the refill |
|---|---|
| Coolant type note | Coolant type for the Kubota B1161 is listed as ethylene glycol-based coolant and ASTM D3306 compatible. The safest move is to use coolant that matches the manual’s spec rather than mixing random formulas |
| Antifreeze mix note | The Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the B1161 tractor to protect against freezing and overheating mix gives the Kubota B1161 coolant system a sensible balance of freeze protection, boil protection and corrosion protection |
| Coolant change interval note | The captured coolant change interval for the Kubota B1161 is every 700 hours. Old coolant can lose corrosion protection even if the tractor still runs cool |
| Refill note | When refilling the Kubota B1161, use 1.66 gal (6.3 L) as the planning number and Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the B1161 tractor to protect against freezing and overheating as the mixture guide. Recheck the level after the thermostat opens |
Kubota B1161 Coolant Capacity FAQ
How much coolant does the Kubota B1161 take?
The main coolant amount captured for the Kubota B1161 is 1.66 gal (6.3 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 B1161?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota B1161, the captured coolant type is ethylene glycol-based coolant and ASTM D3306 compatible.
What antifreeze mix does the Kubota B1161 use?
The captured antifreeze mix for the Kubota B1161 is Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the B1161 tractor to protect against freezing and overheating. A 50/50-style mix is the common practical answer unless your manual or climate calls for something different.
When should the Kubota B1161 coolant be replaced?
Use every 700 hours as the service guide. Coolant can look okay but still lose corrosion protection over time.
Should I trust the listed Kubota B1161 coolant capacity blindly?
Use 1.66 gal (6.3 L) as a guide, but confirm with the operator manual and final fill level. Trapped air, hoses and recovery bottles can affect the real refill amount.
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.
