Toyota G9020-47031 Water Pump Assembly W/Motor Bracket

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A failure in the water pump can have serious consequences for the engine, leading to overheating. To check the functionality of the water pump, start the engine and let it warm up to normal operating temperature, then squeeze the right-side radiator hose. If the water pump is working properly, a pressure surge should be felt as the hose is released. Water pumps are designed with weep or vent holes, and if the pump seal fails, coolant will leak from this hole. To locate the hole, a flashlight may be needed to look through the space behind the pulley just below the water pump shaft. Additionally, if the water pump shaft bearings fail, a howling sound may be heard at the front of the engine while it is running. Checking for bearing wear can be done by rocking the water pump pulley up and down, feeling for any play. It's important not to mistake drive belt slippage, which causes a squealing sound, for water pump failure. Applying automotive drive belt dressing on the belt can help eliminate the belt as a possible cause of the noise.

To remove the water pump, start by draining the cooling system and removing the engine drive belt. Support the right end of the engine with a floor jack, remembering to place a block of wood on the jack head to protect the oil pan, and remove the right-side engine mount and bracket from the engine. Prevent the pulley from turning by placing a screwdriver through one of its holes, then remove the three pulley bolts and the pulley itself. Next, remove the fasteners retaining the water pump to the engine block and remove the water pump, ensuring to note the length and position of the bolts as they were originally installed. For the next part, disconnect the wiring harness, then remove the three bolts and the inlet air filter assembly. Once again, drain the engine coolant, disconnect the wiring from the water pump, remove the five mounting bolts, and then pull the water pump from the timing chain cover, making sure to discard the gasket O-ring. When installing the water pump, start by cleaning all sealing surfaces thoroughly and replacing the gasket with a new one. Install the fasteners in their original positions and tighten them to the proper torque specifications. Proceed to install the remaining parts in the reverse order of removal, refill the cooling system, run the engine, and check for leaks and proper operation. The installation of the next component follows the same process as its removal: replace the gasket O-ring with a new one and tighten the bolts to the proper torque specifications.

No, the inverter pump does not use a gasket

This is the inverter pump for electric vehicles, therefore no belt will need to be changed

No, this is the hybrid inverter water pump for the electric vehicles