The Cub Cadet 73 coolant capacity is listed as 2.44 gal (9.2 L). It also lists coolant type ethylene glycol-based coolant.
Coolant capacity2.44 gal (9.2 L)
Coolant typeethylene glycol-based coolant
Cub Cadet 73 Coolant Capacity
Cooling system capacity
2.44 gal (9.2 L)
Coolant type
ethylene glycol-based coolant
Engine horsepower
7 hp (5.2 kW)
Engine displacement
0.2 L (10.3 cu in)
Coolant Capacity Comparison Chart
Coolant capacity comparison
This model
2.44 gal
Average
2 gal
Low
1 gal
High
4 gal
Engine horsepower comparison
This model
7 hp
Average
18 hp
Low
10 hp
High
30 hp
Engine displacement comparison
This model
0.2 L
Average
0.9 L
Low
0.5 L
High
1.5 L
Cub Cadet 73 Coolant and Engine Notes
Coolant capacity note
For service planning, the Cub Cadet 73 should be treated as 2.44 gal (9.2 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
Coolant type for the Cub Cadet 73 is listed as ethylene glycol-based coolant. The safest move is to use coolant that matches the manual’s spec rather than mixing random formulas
Engine context note
Engine context for the Cub Cadet 73: engine horsepower 7 hp (5.2 kW) and displacement 0.2 L (10.3 cu in). Engine size helps explain why coolant capacity changes between models
Refill note
When refilling the Cub Cadet 73, use 2.44 gal (9.2 L) as the planning number and the manual’s coolant mix as the mixture guide. Recheck the level after the thermostat opens
Cub Cadet 73 Coolant Capacity FAQ
How much coolant does the Cub Cadet 73 take?
The main coolant amount captured for the Cub Cadet 73 is 2.44 gal (9.2 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 73?
Yes. Capacity tells you how much to buy; coolant type tells you what to buy. For the Cub Cadet 73, the captured coolant type is ethylene glycol-based coolant.
What antifreeze mix does the Cub Cadet 73 use?
The captured antifreeze mix for the Cub Cadet 73 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 73 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 73 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Cub Cadet 73, the supporting engine data is horsepower 7 hp (5.2 kW) and displacement 0.2 L (10.3 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.
