Lexus 27060-31112 Alternator Assembly

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Disconnect the cable from the negative battery terminal. For four-cylinder engines, raise the vehicle and support it securely on jack stands. Remove the drive belt, detach the electrical connectors from the alternator, and remove the alternator mounting bolts and harness clamps. Remove the alternator from the mounting bracket. For V6 engines, loosen the right-front wheel lug nuts, then raise the vehicle and support it securely on jack stands. Remove the right front wheel, lower engine cover(s), fender inner liner, drive belt, upper engine covers, air cleaner and inlet assembly, and front bumper assembly. Drain the engine coolant and remove the coolant expansion tank mounting fasteners. Set the tank to the side and remove the radiator. Detach the electrical connectors from the alternator, remove the alternator mounting bolts and harness clamps, and remove the alternator from the mounting bracket. If replacing the alternator, ensure the new unit is identical to the old one in terms of terminals and identification markings. Install the pulley if necessary. Reverse the removal steps and check the charging voltage to verify proper operation of the alternator.