The Cub Cadet GT 2521 coolant capacity is listed as 0.53 gal (2 L). It also lists coolant type ethylene glycol-based coolant and antifreeze mix 50/50 coolant and water mix.
Coolant capacity0.53 gal (2 L)
Coolant typeethylene glycol-based coolant
Antifreeze mix50/50 coolant and water mix
Cub Cadet GT 2521 Coolant Capacity
Coolant capacity
0.53 gal (2 L)
Coolant type
ethylene glycol-based coolant
Antifreeze mix
50/50 coolant and water mix
Engine horsepower
21 hp (15.7 kW)
Engine displacement
0.7 L (44.2 cu in)
Coolant Capacity Comparison Chart
Coolant capacity comparison
This model
0.53 gal
Average
1 gal
Low
0.5 gal
High
2 gal
Engine horsepower comparison
This model
21 hp
Average
18 hp
Low
10 hp
High
30 hp
Engine displacement comparison
This model
0.7 L
Average
0.9 L
Low
0.5 L
High
1.5 L
Cub Cadet GT 2521 Coolant and Engine Notes
Coolant capacity note
For the Cub Cadet GT 2521, 0.53 gal (2 L) is the main coolant capacity captured. Use it as a refill planning number, then confirm the final level at the machine
Coolant type note
Use the right coolant formula for the Cub Cadet GT 2521: ethylene glycol-based coolant. Cheap wrong coolant is not a smart saving if it causes corrosion or deposits
Antifreeze mix note
The 50/50 coolant and water mix mix gives the Cub Cadet GT 2521 coolant system a sensible balance of freeze protection, boil protection and corrosion protection
Engine context note
The Cub Cadet GT 2521 engine data captured here is engine horsepower 21 hp (15.7 kW) and displacement 0.7 L (44.2 cu in). Bigger engines usually need more coolant and more careful refill bleeding
Refill note
Coolant changes are simple but easy to do sloppily. On the Cub Cadet GT 2521, plan around 0.53 gal (2 L) and confirm the final level after air works out of the system
Cub Cadet GT 2521 Coolant Capacity FAQ
How much coolant does the Cub Cadet GT 2521 take?
The main coolant amount captured for the Cub Cadet GT 2521 is 0.53 gal (2 L). Buy a little extra so you can top up after the engine warms up and cools down.
Does coolant type matter on the Cub Cadet GT 2521?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Cub Cadet GT 2521, the captured coolant type is ethylene glycol-based coolant.
What antifreeze mix does the Cub Cadet GT 2521 use?
The captured antifreeze mix for the Cub Cadet GT 2521 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 Cub Cadet GT 2521 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 Cub Cadet GT 2521 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Cub Cadet GT 2521, the supporting engine data is horsepower 21 hp (15.7 kW) and displacement 0.7 L (44.2 cu in).
Official information note
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 cubcadet.com website for official information before draining or refilling the cooling system.
