TOOL-REMOVAL 3932568 - Caterpillar

failed water pump might cause severe engine overheating problems that could result in the following conditions:
Cracks in the cylinder head
A piston seizure
Other potential damage to the engineNote: The water pump seal is lubricated by the coolant in the cooling system. It is normal for a small amount of leakage to occur as the engine cools down and parts contract.Visually inspect the water pump for leaks.Note: If engine coolant enters the engine lubricating system, the lubricating oil and the engine oil filter must be replaced. Replacing the lubricating oil and the engine oil filter will remove any contamination that is caused by the coolant. Replacing the lubricating oil and the engine oil filter will also prevent any irregular oil samples.The water pump is not a serviceable item. In order to install a new water pump, refer to the Disassembly and Assembly, "Water Pump - Remove and Install" or contact your Caterpillar dealer.