Where is the alternator located on a 1998 Toyota RAV4?
When you open the hood and are standing in front of the Rav4 the alternator is on the left hand front side of the engine. You will see a large pulley with the alternator belt on it to the left of the alternator.
First the thermostat must be located on the 1998 Toyota Rav 4. The thermostat housing is on the left side of the engine under the exhaust manifold. The lower radiator hose flows directly to it. Drain the coolant, remove the hose and mounting bolts. Replace the thermostat from the inside of the housing and reinstall.