How do you replace water pump on 1993 Toyota T 100?

To replace the water pump on a 1993 Toyota T100, first disconnect the battery and drain the coolant. Remove the drive belts and the timing cover to access the water pump. Take out the old pump by unbolting it from the engine, clean the mounting surface, and install the new pump with a new gasket. Finally, reassemble everything, refill the coolant, and reconnect the battery.