The Cub Cadet RZT 42 coolant capacity is listed as 0.63 gal (2.4 L). It also lists coolant type ethylene glycol-based coolant and antifreeze mix 50/50 coolant and water mix.
Cub Cadet RZT 42 Coolant Capacity
| Coolant capacity | 0.62 gal (2.4 L) |
|---|---|
| Cooling system capacity | 0.63 gal (2.4 L) |
| Radiator capacity | 0.63 gal (2.4 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
Engine horsepower comparison
Engine displacement comparison
Cub Cadet RZT 42 Coolant and Engine Notes
| Coolant capacity note | The Cub Cadet RZT 42’s key coolant figure here is 0.63 gal (2.4 L) for cooling system capacity. Use that before buying coolant or draining the system |
|---|---|
| Radiator capacity note | The Cub Cadet RZT 42 radiator figure is 0.63 gal (2.4 L). Treat it as radiator context, not always the complete refill amount |
| Coolant type note | Coolant type for the Cub Cadet RZT 42 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 Cub Cadet RZT 42 antifreeze mix is listed as 50/50 coolant and water mix. That is the normal protection range for freezing, boiling and corrosion control |
| Engine context note | For the Cub Cadet RZT 42, the supporting engine specs are engine horsepower 22 hp (16.4 kW) and displacement 0.7 L (44.2 cu in). Use them as context beside the coolant capacity, not as a replacement for the manual |
| Refill note | When refilling the Cub Cadet RZT 42, use 0.63 gal (2.4 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 RZT 42 Coolant Capacity FAQ
What is the cooling system capacity of the Cub Cadet RZT 42?
The Cub Cadet RZT 42 cooling system capacity is shown as 0.63 gal (2.4 L). That is the number to use before draining the system.
What coolant type should I use in the Cub Cadet RZT 42?
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 RZT 42?
Not for normal long-term use. The Cub Cadet RZT 42 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 RZT 42?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Cub Cadet RZT 42 is the service interval in the operator manual.
Why does the Cub Cadet RZT 42 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Cub Cadet RZT 42, the supporting engine data is horsepower 22 hp (16.4 kW) and displacement 0.7 L (44.2 cu in).
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.
