HOSE BK 5417121 - Caterpillar

119-5152 LLC Extender should be used to treat the coolant at its half-life. This is available in a 1 quart container.
The cooling system should be treated with approximately 1 quart of Extender for each 12 gallons of cooling system capacity. A 15 percent under or over treatment of the system will not create any problem within the cooling system.
For smaller cooling system volumes, the following table provides the recommended Extender dosage.
At the time the LLC is drained from the cooling system, CLEAN WATER is the only system cleaning/flushing agent required.
No cleaning agents are to be used when a cooling system using LLC is drained, flushed and refilled.When a system is being switched over from the present coolant to LLC, Caterpillar cleaner should be used as a part of the change process. After the cleaning solution has been drained, it is VERY IMPORTANT that a thorough water flush be used to remove ALL of the cleaning agent.
LLC can be recycled in the same manner as the present antifreeze. The drained coolant mixture can be "distilled" to remove the ethylene glycol and water for reuse. The inhibitor system and other contaminants are left behind as residual for disposal.
MIXING LLC WITH OTHER PRODUCTS WILL REDUCE THE EFFECTIVENESS OF THE COOLANT. THIS COULD RESULT IN DAMAGE TO COOLING SYSTEM COMPONENTS. USE ONLY CATERPILLAR LABELED PRODUCTS OR COMMERCIAL PRODUCTS THAT HAVE PASSED THE CATERPILLAR EC-1 SPECIFICATION FOR PRE-MIXED OR CONCENTRATE COOLANTS AND CATERPILLAR EXTENDER.