How do you replace the Water Pump on a 1993 Lexus Gs 300?

To replace the water pump on a 1993 Lexus GS 300, first, disconnect the battery and drain the coolant. Remove the serpentine belt and any components obstructing access to the water pump, such as the timing cover or fan. Unbolt the old water pump, clean the mounting surface, and install the new pump with a new gasket. Finally, reassemble everything, refill the coolant, and reconnect the battery.