The Kubota L3800 coolant capacity is listed as 1.61 gal (6.1 L). It also lists coolant type ethylene glycol-based coolant and Kubota Genuine Coolant and antifreeze mix 50/50 coolant and distilled water mix.
Kubota L3800 Coolant Capacity
| Coolant capacity | 1.61 gal (6.1 L) |
|---|---|
| Cooling system capacity | 1.6 gal (6.1 L) |
| Radiator capacity | 1.61 gal (6.1 L) |
| Coolant type | ethylene glycol-based coolant and Kubota Genuine Coolant |
| Antifreeze mix | 50/50 coolant and distilled water mix |
| Engine horsepower | 37.4 hp (27.9 kW) |
| Engine displacement | 1.8 L (109.8 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota L3800 Coolant and Engine Notes
| Coolant capacity note | The Kubota L3800 coolant spec points to 1.61 gal (6.1 L). Do not rely on the radiator-only amount if the full cooling-system capacity is available |
|---|---|
| Radiator capacity note | Radiator capacity is listed as 1.61 gal (6.1 L). The full cooling system can be higher because coolant also sits in the engine and hoses |
| Coolant type note | Coolant type for the Kubota L3800 is listed as ethylene glycol-based coolant and Kubota Genuine Coolant. The safest move is to use coolant that matches the manual’s spec rather than mixing random formulas |
| Antifreeze mix note | The 50/50 coolant and distilled water mix mix gives the Kubota L3800 coolant system a sensible balance of freeze protection, boil protection and corrosion protection |
| Engine context note | The Kubota L3800 engine data captured here is engine horsepower 37.4 hp (27.9 kW) and displacement 1.8 L (109.8 cu in). Bigger engines usually need more coolant and more careful refill bleeding |
| Refill note | When refilling the Kubota L3800, use 1.61 gal (6.1 L) as the planning number and 50/50 coolant and distilled water mix as the mixture guide. Recheck the level after the thermostat opens |
Kubota L3800 Coolant Capacity FAQ
How much coolant does the Kubota L3800 take?
The main coolant amount captured for the Kubota L3800 is 1.61 gal (6.1 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 L3800?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota L3800, the captured coolant type is ethylene glycol-based coolant and Kubota Genuine Coolant.
What antifreeze mix does the Kubota L3800 use?
The captured antifreeze mix for the Kubota L3800 is 50/50 coolant and distilled 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 L3800 coolant be replaced?
Use the service interval in the operator manual as the service guide. Coolant can look okay but still lose corrosion protection over time.
Why does the Kubota L3800 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota L3800, the supporting engine data is horsepower 37.4 hp (27.9 kW) and displacement 1.8 L (109.8 cu in).
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.
