The Cub Cadet 1604 coolant capacity is listed as 2.51 gal (9.5 L). It also lists coolant type ethylene glycol-based coolant and antifreeze mix 50/50 coolant and water mix.
Coolant capacity2.51 gal (9.5 L)
Coolant typeethylene glycol-based coolant
Antifreeze mix50/50 coolant and water mix
Cub Cadet 1604 Coolant Capacity
Coolant capacity
2.51 gal (9.5 L)
Cooling system capacity
2.5 gal (9.5 L)
Radiator capacity
2.5 gal (9.5 L)
Coolant type
ethylene glycol-based coolant
Antifreeze mix
50/50 coolant and water mix
Engine horsepower
16 hp (11.9 kW)
Engine displacement
0.7 L (40 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
16 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 1604 Coolant and Engine Notes
Coolant capacity note
The Cub Cadet 1604 coolant spec points to 2.51 gal (9.5 L). Do not rely on the radiator-only amount if the full cooling-system capacity is available
Radiator capacity note
Radiator capacity is listed as 2.5 gal (9.5 L). The full cooling system can be higher because coolant also sits in the engine and hoses
Coolant type note
The captured coolant type for the Cub Cadet 1604 is ethylene glycol-based coolant. Do not mix unknown coolant types unless the label and manual say they are compatible
Antifreeze mix note
The 50/50 coolant and water mix mix gives the Cub Cadet 1604 coolant system a sensible balance of freeze protection, boil protection and corrosion protection
Engine context note
The Cub Cadet 1604 engine data captured here is engine horsepower 16 hp (11.9 kW) and displacement 0.7 L (40 cu in). Bigger engines usually need more coolant and more careful refill bleeding
Refill note
For a coolant change on the Cub Cadet 1604, do not just dump in coolant and walk away. Fill slowly, run it up to temperature, cool it down and top up as needed
Cub Cadet 1604 Coolant Capacity FAQ
What is the cooling system capacity of the Cub Cadet 1604?
The Cub Cadet 1604 cooling system capacity is shown as 2.51 gal (9.5 L). That is the number to use before draining the system.
What coolant type should I use in the Cub Cadet 1604?
Use ethylene glycol-based coolant. The blunt rule is simple: match the manual’s coolant spec and do not mix unknown coolant formulas.
Should I use straight water in the Cub Cadet 1604?
Not for normal long-term use. The Cub Cadet 1604 should use 50/50 coolant and water mix or the manual’s specified coolant mix so the system gets corrosion, freeze and boil protection.
Does old coolant matter in the Cub Cadet 1604?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Cub Cadet 1604 is the service interval in the operator manual.
Why does the Cub Cadet 1604 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Cub Cadet 1604, the supporting engine data is horsepower 16 hp (11.9 kW) and displacement 0.7 L (40 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.
