Water pump is a part of cooling system in diesel engine. Water pump circulates water and keep engine temperatures down. The water Pump contains an impeller that initiates circulation and is located in the engine compartment.
When your water pump is beginning to fail you will see small dots of coolant on the casing and an increase in the noise made by your water pump in operation. If that happens, you should replace the water pump as soon as possible.
When you meet with this kind of failure on water pump of your Yanmar diesel engine the best option is to replace it with the new one when compared to the much bigger cost of leaving it to fail.
Originalparts4you provides you original Yanmar water pumps from stock. All Yanmar water pumps are given below. If you cannot find Yanmar water pump belong your vehicle please contact us to get more information or technical support.