The Kubota GL26 coolant capacity is listed as 1.59 gal (6 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota GL26 Coolant Capacity
| Coolant capacity | 1.59 gal (6 L) |
|---|---|
| Cooling system capacity | 1.59 gal (6 L) |
| Radiator capacity | 1.59 gal (6 L) |
| Coolant type | ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Coolant change interval | every 700 hours |
| Engine horsepower | 25.6 hp (19.1 kW) |
| Engine displacement | 1.5 L (91.5 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota GL26 Coolant and Engine Notes
| Coolant capacity note | The Kubota GL26’s key coolant figure here is 1.59 gal (6 L) for coolant capacity. Use that before buying coolant or draining the system |
|---|---|
| Radiator capacity note | For the Kubota GL26, the captured radiator capacity is 1.59 gal (6 L). If you are doing a full drain, check the full cooling-system capacity too |
| Coolant type note | Coolant type for the Kubota GL26 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 | For the Kubota GL26, the captured mix is 50/50 coolant and water mix. Straight water is not the right long-term answer unless you are only flushing the system |
| Coolant change interval note | Coolant service for the Kubota GL26 is listed as every 700 hours. If the service history is unknown, a fresh drain and refill is usually the cleaner move |
| Engine context note | Engine context for the Kubota GL26: engine horsepower 25.6 hp (19.1 kW) and displacement 1.5 L (91.5 cu in). Engine size helps explain why coolant capacity changes between models |
| Refill note | When refilling the Kubota GL26, use 1.59 gal (6 L) as the planning number and 50/50 coolant and water mix as the mixture guide. Recheck the level after the thermostat opens |
Kubota GL26 Coolant Capacity FAQ
How much coolant does the Kubota GL26 take?
The main coolant amount captured for the Kubota GL26 is 1.59 gal (6 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 GL26?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Kubota GL26, the captured coolant type is ethylene glycol-based coolant and ASTM D3306 compatible.
What antifreeze mix does the Kubota GL26 use?
The captured antifreeze mix for the Kubota GL26 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 GL26 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 GL26 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Kubota GL26, the supporting engine data is horsepower 25.6 hp (19.1 kW) and displacement 1.5 L (91.5 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.
