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The Bosch AL4104X is a 130-amp, 12-volt alternator with an internal regulator and internal fan, built in an aluminum case. It is a remanufactured-style replacement aimed at Hyundai applications that need more charging capacity than a base-output unit. Bosch is a common original-equipment supplier, so fit and connector layout usually match the factory part. Compared with cheaper rebuilt alternators, it carries a stronger brand reputation, though some owners report early failures and it costs more than no-name units.
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Lowest price we've seen: $339.99 on Nov 8 at Walmart. Tracked across 1 store since Nov 8.
Owner feedback on Bosch alternators is mixed: many praise fit and charging output, while others report failures within a year or two.
The Bosch AL4104X is a premium alternator rated at 12 volts and 130 amps. It has an aluminum case and finish, an internal fan and an internal regulator.
It turns clockwise and has a 6S pulley. The mounting configuration code is Short, and the plug type is 4271.
