Dead Alternator on 7MGE - AutoZone Duralast Replacement

Electricalbeginner✓ OP Confirmed

Problem

Alternator failed on an 86 NA/Auto 7MGE Supra, leaving the car unable to charge the battery and stranding the owner on the way to work.

Alternator stopped charging the batteryCar needed a new battery from AAA to get homeDead alternator on daily driver needing immediate replacement

Root Cause

Alternator failure, likely due to worn brushes, bad bearings, failed diodes, or a bad voltage regulator. Common wear item on high-mileage 7MGE engines.

Confidence

High confidence — Original poster confirmed this resolved the issue

View Original Thread →Posted May 2023 on SupraForums.com