The Cub Cadet 1800 coolant capacity is listed as 2.51 gal (9.5 L). It also lists coolant type ethylene glycol-based coolant.
Coolant capacity2.51 gal (9.5 L)
Coolant typeethylene glycol-based coolant
Cub Cadet 1800 Coolant Capacity
Coolant capacity
2.51 gal (9.5 L)
Cooling system capacity
2.5 gal (9.5 L)
Coolant type
ethylene glycol-based coolant
Engine model
K301
Engine horsepower
8 hp (6 kW)
Engine displacement
0.5 L (33 cu in)
Coolant Capacity Comparison Chart
Coolant capacity comparison
This model
2.51 gal
Average
2 gal
Low
1 gal
High
4 gal
Engine horsepower comparison
This model
8 hp
Average
18 hp
Low
10 hp
High
30 hp
Engine displacement comparison
This model
0.5 L
Average
0.9 L
Low
0.5 L
High
1.5 L
Cub Cadet 1800 Coolant and Engine Notes
Coolant capacity note
For service planning, the Cub Cadet 1800 should be treated as 2.51 gal (9.5 L) coolant capacity. That is a compact tractor cooling system where a normal premixed coolant jug may cover most of the refill
Coolant type note
Use the right coolant formula for the Cub Cadet 1800: ethylene glycol-based coolant. Cheap wrong coolant is not a smart saving if it causes corrosion or deposits
Engine context note
For the Cub Cadet 1800, the supporting engine specs are engine model K301, engine horsepower 8 hp (6 kW), and displacement 0.5 L (33 cu in). Use them as context beside the coolant capacity, not as a replacement for the manual
Refill note
Coolant changes are simple but easy to do sloppily. On the Cub Cadet 1800, plan around 2.51 gal (9.5 L) and confirm the final level after air works out of the system
Cub Cadet 1800 Coolant Capacity FAQ
How much coolant does the Cub Cadet 1800 take?
The main coolant amount captured for the Cub Cadet 1800 is 2.51 gal (9.5 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 1800?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Cub Cadet 1800, the captured coolant type is ethylene glycol-based coolant.
What antifreeze mix does the Cub Cadet 1800 use?
The captured antifreeze mix for the Cub Cadet 1800 is the coolant mix specified in the manual. A 50/50-style mix is the common practical answer unless your manual or climate calls for something different.
When should the Cub Cadet 1800 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 1800 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Cub Cadet 1800, the supporting engine data is engine model K301, horsepower 8 hp (6 kW), and displacement 0.5 L (33 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.
