The Cub Cadet 125 coolant capacity is listed as 2.17 gal (8.2 L). It also lists coolant type ethylene glycol-based coolant and antifreeze mix 50/50 coolant and water mix.
Coolant capacity2.17 gal (8.2 L)
Coolant typeethylene glycol-based coolant
Antifreeze mix50/50 coolant and water mix
Cub Cadet 125 Coolant Capacity
Cooling system capacity
2.17 gal (8.2 L)
Coolant type
ethylene glycol-based coolant
Antifreeze mix
50/50 coolant and water mix
Engine model
K301
Engine horsepower
12 hp (8.9 kW)
Engine displacement
0.3 L (21 cu in)
Coolant Capacity Comparison Chart
Coolant capacity comparison
This model
2.17 gal
Average
2 gal
Low
1 gal
High
4 gal
Engine horsepower comparison
This model
12 hp
Average
18 hp
Low
10 hp
High
30 hp
Engine displacement comparison
This model
0.3 L
Average
0.9 L
Low
0.5 L
High
1.5 L
Cub Cadet 125 Coolant and Engine Notes
Coolant capacity note
The headline cooling-system number for the Cub Cadet 125 is 2.17 gal (8.2 L). Buy enough coolant before opening the drain plug
Coolant type note
For the Cub Cadet 125, coolant type matters as much as capacity. The clean captured value is ethylene glycol-based coolant
Antifreeze mix note
The 50/50 coolant and water mix mix gives the Cub Cadet 125 coolant system a sensible balance of freeze protection, boil protection and corrosion protection
Engine context note
The Cub Cadet 125 engine data captured here is engine model K301, engine horsepower 12 hp (8.9 kW), and displacement 0.3 L (21 cu in). Bigger engines usually need more coolant and more careful refill bleeding
Refill note
The practical service move for the Cub Cadet 125: 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
Cub Cadet 125 Coolant Capacity FAQ
What is the Cub Cadet 125 coolant capacity?
The Cub Cadet 125 coolant capacity is listed as 2.17 gal (8.2 L) for cooling system 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 Cub Cadet 125?
No. Use ethylene glycol-based coolant 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 Cub Cadet 125?
Premixed coolant can be fine if it matches ethylene glycol-based coolant and the required mix. The captured mix for the Cub Cadet 125 is 50/50 coolant and water mix.
How often should I change coolant in the Cub Cadet 125?
The captured coolant change interval for the Cub Cadet 125 is the service interval in the operator manual. If service history is unknown, changing it is usually smarter than guessing.
What engine specs affect Cub Cadet 125 coolant capacity?
The captured engine context is engine model K301, horsepower 12 hp (8.9 kW), and displacement 0.3 L (21 cu in). Engine size is one reason coolant capacity changes between tractors.
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.
