Jeep R5149275AA ALTERNATR-Engine

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Installation is the reverse of removal. Install the drivebelt. Check the charging voltage to verify that the alternator is operating correctly.

Install the new alternator by tightening the mounting bolts. Put the drivebelt back on and check the charging voltage to confirm proper operation. For Hemi engines, follow similar steps but also disconnect the field wire electrical connector and remove the plastic insulator cap from the B+ output terminal. Remove the battery cable retaining nut and disconnect the battery cable. Remove the alternator mounting bolts and take out the alternator. When installing the new alternator, tighten the mounting bolts.

Take the old one with you when purchasing a replacement unit. Make sure the new/rebuilt unit looks identical to the old alternator. Look at the terminals - they should be the same in number, size and location as the terminals on the old alternator. Finally, look at the identification numbers - they will be stamped into the housing or printed on a tag attached to the housing. Make sure the numbers are the same on both alternators. Many new/rebuilt alternators do not have a pulley installed, so you may have to switch the pulley from the old unit to the new/rebuilt one. When buying an alternator, find out the shop's policy regarding pulleys; some shops will perform this service free of charge.

Installation is the reverse of removal. Tighten the mounting bolts to the torque. Install the drivebelt. Check the charging voltage to verify proper operation of the alternator.