HARNESS AS 2377595 - Caterpillar

recommends using Cat DEAC (Diesel Engine Antifreeze/Coolant) for cooling systems that require a high performance conventional heavy-duty coolant/antifreeze. Cat DEAC is alkaline single-phase ethylene glycol type antifreeze that contains corrosion inhibitors and antifoam agents.Cat DEAC is formulated with the correct amount of Cat SCA (Supplemental Coolant Additive). Do not use Cat SCA at the initial fill when Cat DEAC is used at the recommended 50/50 water/coolant concentrate mix or higher coolant concentration with recommended water.Containers of several sizes are available. Refer to this Special Publication, "Coolant Recommendations" for available container sizes and part numbers, or consult your Caterpillar dealer for the part numbers.If concentrated Cat DEAC is used, Caterpillar recommends mixing the concentrate with distilled water or with deionized water. If distilled water or deionized water is not available, use water which has the required properties. For the water properties, see this publication, "General Coolant Information".Note: The concentrated Cat DEAC and the recommended water must be thoroughly mixed prior to filling the cooling system.