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May Automotive Parts Manufacturing & Supplying Co,.Ltd
May Automotive Parts Manufacturing & Supplying Co,.Ltd
water pumps

Auto Water Pump

The engine drives the automotive water pump bearing and impeller to rotate through the belt pulley. The coolant in the water pump is driven by the impeller to rotate together. Under the action of centrifugal force, it is thrown to the edge of the auto water pump shell, generates a certain pressure, and then flows out of the water outlet or water pipe. The pressure at the center of the impeller decreases because the coolant is thrown out. The coolant in the radiator is sucked into the impeller through the water pipe under the action of the pressure difference between the inlet of the automotive water pump and the center of the impeller to realize the reciprocating circulation of the coolant.


By advanced testing methods and theories, MAPMS repeatedly tests the engine cooling system components reliability, durability, roughness, hardness, size and surface compositions of the auto water pump and its parts to achieve the best performance.

Get the Prices of Car Water Pumps >

Car Water Pumps Features

Fast self-priming and strong suction.

With acid resistance, alkali resistance, corrosion resistance and other properties.

Maintain a stable coolant circulation flow.

Large flow, high pressure, stable performance, easy installation.

With characteristics of corrosion resistance, small deformation, strong fire resistance and long service life.



What Are the Symptoms of a Bad Auto Water Pumps?


The automotive water pump plays a key role to keep engine safe. When there is a problem with the water pump, it will affect the normal operation of the cooling system and then damage the engine.

If the auto water pump is damaged, there will be the following symptoms.


  • Idle Speed Problem


The automotive water pump is connected with the belt to pump cold coolant from the radiator to cool the engine. If there is a problem with the rotation of the auto water pump, it will directly affect the speed of the engine.


  • Coolant Leakage


This situation is mainly caused by the aging of the auto water pump sealing ring. Too tight engine combination belt will also lead to premature wear of the automotive water pump. Moreover, the antifreeze is not replaced for a long time, the internal corrosion will eventually cause damage to the automotive water pump. Lastly, still not replace the auto water pump for a long time when the automotive water pump reaches its service life.


  • Noise from the Engine


Open the engine cover and start the engine. If there is a low friction noise, the auto water pump bearing may be damaged.


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MAPMS supplies perfect automotive parts for worldwide vehicle models.

MAPMS offers the most automotive parts and service to meet customers' needs. ***Please send inquiry with correct OEM numbers.***

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Radiator Pressure Caps