 A Duralast alternator from AutoZone. Duralast starters and alternators are triple tested at the component, sub-assembly, and finished unit levels to ensure OE or better amperage and torque output. Learn about Duralast OE quality parts at DuralastParts.com. Exclusively available at AutoZone. That's DuralastParts.com. The Under the Hood Show is recorded live from 9 to 11 a.m. Central Time every Thursday.