The Cub Cadet FMZ 42 SD coolant capacity is listed as 0.66 gal (2.5 L). It also lists coolant type ethylene glycol-based coolant and antifreeze mix 50/50 coolant and water mix.
Coolant capacity0.66 gal (2.5 L)
Coolant typeethylene glycol-based coolant
Antifreeze mix50/50 coolant and water mix
Cub Cadet FMZ 42 SD Coolant Capacity
Coolant capacity
0.66 gal (2.5 L)
Coolant type
ethylene glycol-based coolant
Antifreeze mix
50/50 coolant and water mix
Engine horsepower
22 hp (16.4 kW)
Engine displacement
0.7 L (44.2 cu in)
Coolant Capacity Comparison Chart
Coolant capacity comparison
This model
0.66 gal
Average
1 gal
Low
0.5 gal
High
2 gal
Engine horsepower comparison
This model
22 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 FMZ 42 SD Coolant and Engine Notes
Coolant capacity note
For the Cub Cadet FMZ 42 SD, 0.66 gal (2.5 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
Coolant type for the Cub Cadet FMZ 42 SD 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
Antifreeze mix note
The 50/50 coolant and water mix mix gives the Cub Cadet FMZ 42 SD coolant system a sensible balance of freeze protection, boil protection and corrosion protection
Engine context note
The Cub Cadet FMZ 42 SD engine data captured here is engine horsepower 22 hp (16.4 kW) and displacement 0.7 L (44.2 cu in). Bigger engines usually need more coolant and more careful refill bleeding
Refill note
When refilling the Cub Cadet FMZ 42 SD, use 0.66 gal (2.5 L) as the planning number and 50/50 coolant and water mix as the mixture guide. Recheck the level after the thermostat opens
Cub Cadet FMZ 42 SD Coolant Capacity FAQ
What is the cooling system capacity of the Cub Cadet FMZ 42 SD?
The Cub Cadet FMZ 42 SD cooling system capacity is shown as 0.66 gal (2.5 L). That is the number to use before draining the system.
What coolant type should I use in the Cub Cadet FMZ 42 SD?
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 FMZ 42 SD?
Not for normal long-term use. The Cub Cadet FMZ 42 SD 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 FMZ 42 SD?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Cub Cadet FMZ 42 SD is the service interval in the operator manual.
Why does the Cub Cadet FMZ 42 SD coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Cub Cadet FMZ 42 SD, the supporting engine data is horsepower 22 hp (16.4 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.
