Volvo Penta Coolant System Cleaner, Part Number 21467920.
This is a coolant cleaning system for systems using VCS yellow coolant when oil or deposits are present.
High engine temperature can be caused by build-up of deposits in the cooling system which occur, usually, after long-running time or the use of mineral-rich water. When this occurs the cooling system must be cleaned with the help of a cleaning agent.
The cleaner is a citric acid-based solvent with the addition of a neutraliser.
If you are running on green coolant, do not attempt to change to yellow without contacting us first on 01326 370060.
Volvo Penta Part No: 21467920
Quantity: 500g plus 200g