The engine water pump on a car serves to pressurize coolant and to enable its recirculation in the cooling system. Specifically, it allows water to pass different parts such as the radiator and the engine cylinder cyclically and take away heat, thus preventing excessive temperature of the engine.
The engine cylinder contains multiple recirculation circuits for cooling water. They are connected to the radiator (water radiator) in the front section of the car via water pipes, and form a large water recirculation system together with the latter. A water pump is located at the upper water outlet of the engine. Driven by a fan belt, it pumps out hot water from the water circuits in the cylinder and pumps in cool water.
A thermostat is also provided next to the water pump. It remains deactivated after startup of the car (cold startup). As a result, the cooling water only flows cyclically inside the engine (the small recirculation system) instead of passing the radiator. The thermostat is activated once the engine temperature reaches over 80℃, causing the hot water in the engine to be pumped into the radiator. The cool air flowing through the radiator during drives will take away heat to realize cooling effect.
The automobile engine water pump provides power for circulation of the coolant, which is a prerequisite for temperature drop of the engine. With the centrifugal force generated by the impellers, the water pump pressurizes the coolant flowing through the radiator and delivers it to the cylinder cooling jacket to facilitate flow of cooling water.
Product name: water pump
Ref No.: 04E121600P
replacement code: 04E121600AL
Applicable models:
Skoda: OCT 13-17/RAP 13-/YET 14-18
VW: GOLF 13-17/JE 11-18/PA 15-/PO 13-18/BE 12-17/BEC 13-17/CA 16-/CC 12-17/GOC 12-16/GOSV 14-/SCI 15-18/SHA 16-/TIG 12-17/TIGL 18-/TOU 16-
Seat: LB 13-15/LE 13-17/AL 16-/ARON 18-/IB 13-17/TO 16-
Audi: AQ3 12-18/A1 11-18/A3 13-16/A3CA 15-16/A4 16-/A4Q 16-
