The Cub Cadet SLT1550 coolant capacity is listed as 0.92 gal (3.5 L). It also lists coolant type ethylene glycol-based coolant.
Coolant capacity0.92 gal (3.5 L)
Coolant typeethylene glycol-based coolant
Change intervalevery 2,000 hours
Cub Cadet SLT1550 Coolant Capacity
Coolant capacity
0.92 gal (3.5 L)
Cooling system capacity
0.92 gal (3.5 L)
Radiator capacity
0.88 gal (3.3 L)
Coolant type
ethylene glycol-based coolant
Coolant change interval
every 2,000 hours
Engine horsepower
25 hp (18.6 kW)
Engine displacement
0.7 L (44.2 cu in)
Coolant Capacity Comparison Chart
Coolant capacity comparison
This model
0.92 gal
Average
1 gal
Low
0.5 gal
High
2 gal
Engine horsepower comparison
This model
25 hp
Average
35 hp
Low
20 hp
High
60 hp
Engine displacement comparison
This model
0.7 L
Average
0.9 L
Low
0.5 L
High
1.5 L
Cub Cadet SLT1550 Coolant and Engine Notes
Coolant capacity note
For service planning, the Cub Cadet SLT1550 should be treated as 0.92 gal (3.5 L) coolant capacity. That is a smaller cooling system where using the exact fill amount matters
Radiator capacity note
Radiator capacity is listed as 0.88 gal (3.3 L). The full cooling system can be higher because coolant also sits in the engine and hoses
Coolant type note
Coolant type for the Cub Cadet SLT1550 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
Coolant change interval note
The captured coolant change interval for the Cub Cadet SLT1550 is every 2,000 hours. Old coolant can lose corrosion protection even if the tractor still runs cool
Engine context note
The Cub Cadet SLT1550 engine data captured here is engine horsepower 25 hp (18.6 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 SLT1550, use 0.92 gal (3.5 L) as the planning number and the manual’s coolant mix as the mixture guide. Recheck the level after the thermostat opens
Cub Cadet SLT1550 Coolant Capacity FAQ
What is the Cub Cadet SLT1550 coolant capacity?
The Cub Cadet SLT1550 coolant capacity is listed as 0.92 gal (3.5 L) for coolant capacity. Use this as the refill planning number and confirm the final level at the radiator or overflow bottle.
Can I use any coolant in the Cub Cadet SLT1550?
No. Use ethylene glycol-based coolant or a coolant that clearly matches the manual’s required spec. Wrong coolant can create corrosion, deposits or seal problems.
Is premixed coolant okay for the Cub Cadet SLT1550?
Premixed coolant can be fine if it matches ethylene glycol-based coolant and the required mix. The captured mix for the Cub Cadet SLT1550 is the coolant mix specified in the manual.
How often should I change coolant in the Cub Cadet SLT1550?
The captured coolant change interval for the Cub Cadet SLT1550 is every 2,000 hours. If service history is unknown, changing it is usually smarter than guessing.
Why does the Cub Cadet SLT1550 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Cub Cadet SLT1550, the supporting engine data is horsepower 25 hp (18.6 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.
