The Kubota STA-35 coolant capacity is listed as 2.17 gal (8.2 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota STA-35 Coolant Capacity
| Cooling system capacity | 2.17 gal (8.2 L) |
|---|---|
| Radiator capacity | 2.17 gal (8.2 L) |
| Coolant type | ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Engine model | D1703 |
| Engine horsepower | 35.9 hp (26.8 kW) |
| Engine displacement | 1.6 L (100.5 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota STA-35 Coolant and Engine Notes
| Coolant capacity note | The Kubota STA-35’s key coolant figure here is 2.17 gal (8.2 L) for cooling system capacity. Use that before buying coolant or draining the system |
|---|---|
| Radiator capacity note | Radiator capacity is listed as 2.17 gal (8.2 L). The full cooling system can be higher because coolant also sits in the engine and hoses |
| Coolant type note | For the Kubota STA-35, coolant type matters as much as capacity. The clean captured value is ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix note | The 50/50 coolant and water mix mix gives the Kubota STA-35 coolant system a sensible balance of freeze protection, boil protection and corrosion protection |
| Engine context note | The Kubota STA-35 engine data captured here is engine model D1703, engine horsepower 35.9 hp (26.8 kW), and displacement 1.6 L (100.5 cu in). Bigger engines usually need more coolant and more careful refill bleeding |
| Refill note | The practical service move for the Kubota STA-35: buy enough coolant for 2.17 gal (8.2 L), fill to spec, run the engine, then recheck the radiator and overflow bottle after cooling |
Kubota STA-35 Coolant Capacity FAQ
What is the cooling system capacity of the Kubota STA-35?
The Kubota STA-35 cooling system capacity is shown as 2.17 gal (8.2 L). That is the number to use before draining the system.
What coolant type should I use in the Kubota STA-35?
Use ethylene glycol-based coolant and ASTM D3306 compatible. 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 STA-35?
Not for normal long-term use. The Kubota STA-35 should use 50/50 coolant and water mix or the manual’s specified coolant mix so the system gets corrosion, freeze and boil protection.
Does old coolant matter in the Kubota STA-35?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Kubota STA-35 is the service interval in the operator manual.
What engine specs affect Kubota STA-35 coolant capacity?
The captured engine context is engine model D1703, horsepower 35.9 hp (26.8 kW), and displacement 1.6 L (100.5 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.
