The Kubota B7800 coolant capacity is listed as 1.18 gal (4.4 L). It also lists coolant type ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible and antifreeze mix Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the B7800 tractor to protect against freezing and corrosion.
Kubota B7800 Coolant Capacity
| Coolant capacity | 1.18 gal (4.4 L) |
|---|---|
| Cooling system capacity | 1.18 gal (4.4 L) |
| Radiator capacity | 1.18 gal (4.4 L) |
| Coolant type | ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible |
| Antifreeze mix | Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the B7800 tractor to protect against freezing and corrosion |
| Coolant change interval | every 700 hours |
| Engine horsepower | 30 hp (22.4 kW) |
| Engine displacement | 1.5 L (91.5 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota B7800 Coolant and Engine Notes
| Coolant capacity note | The headline cooling-system number for the Kubota B7800 is 1.18 gal (4.4 L). Buy enough coolant before opening the drain plug |
|---|---|
| Radiator capacity note | Radiator capacity is listed as 1.18 gal (4.4 L). The full cooling system can be higher because coolant also sits in the engine and hoses |
| Coolant type note | For the Kubota B7800, coolant type matters as much as capacity. The clean captured value is ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible |
| Antifreeze mix note | The Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the B7800 tractor to protect against freezing and corrosion mix gives the Kubota B7800 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 B7800 is every 700 hours. Old coolant can lose corrosion protection even if the tractor still runs cool |
| Engine context note | The Kubota B7800 engine data captured here is engine horsepower 30 hp (22.4 kW) and displacement 1.5 L (91.5 cu in). Bigger engines usually need more coolant and more careful refill bleeding |
| Refill note | The practical service move for the Kubota B7800: buy enough coolant for 1.18 gal (4.4 L), fill to spec, run the engine, then recheck the radiator and overflow bottle after cooling |
Kubota B7800 Coolant Capacity FAQ
What is the Kubota B7800 coolant capacity?
The Kubota B7800 coolant capacity is listed as 1.18 gal (4.4 L) for coolant capacity. Use this as the refill planning number and confirm the final level at the radiator or overflow bottle.
Can I use any coolant in the Kubota B7800?
No. Use ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible or a coolant that clearly matches the manual’s required spec. Wrong coolant can create corrosion, deposits or seal problems.
Is premixed coolant okay for the Kubota B7800?
Premixed coolant can be fine if it matches ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible and the required mix. The captured mix for the Kubota B7800 is Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the B7800 tractor to protect against freezing and corrosion.
How often should I change coolant in the Kubota B7800?
The captured coolant change interval for the Kubota B7800 is every 700 hours. If service history is unknown, changing it is usually smarter than guessing.
What engine specs affect Kubota B7800 coolant capacity?
The captured engine context is horsepower 30 hp (22.4 kW) and displacement 1.5 L (91.5 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.
