Bosch AL3385X Alternator

Bosch AL3385X Alternator for Toyota Corolla

The Bosch AL3385X is a remanufactured 12-volt alternator built for charging-system replacement on select Toyota Corolla models. It delivers 125 amps, includes the pulley, and uses an internal regulator and internal fan for a direct-fit electrical service part.

Key Features

• Remanufactured Bosch alternator for charging system repair
• 12-volt, 125-amp output
• Internal regulator and internal fan design
• Clockwise rotation
• Pulley included with 6-groove belt drive
• Aluminum case and aluminum housing construction
• Plug clock rear view main mounting ear at 6 o’clock

Product Details

Bosch Premium Alternators are remanufactured, built, and tested to support dependable electrical performance and consistent operation. The AL3385X is engineered for Toyota Corolla applications that require a 125-amp alternator, and it matches the OE-style electrical layout with a 12-volt system, internal voltage regulation, and a 6-groove pulley setup. This Bosch AL3385X alternator is a practical replacement choice for 2014-2019 Toyota Corolla charging-system service, including 2019 Toyota Corolla applications listed in the fitment data.

This part cross-references ND 270600T240 for the same application.

What It Helps Fix

• Battery warning light caused by alternator output loss
• Low charging voltage during driving
• Dim lights or electrical instability from weak charging performance
• Battery drain after the engine is running
• Noise or belt-drive issues related to a worn alternator pulley assembly

Installation Notes and Tips

Verify the vehicle’s original alternator output, pulley groove count, connector orientation, and mounting-ear clocking before installation. This Bosch AL3385X uses clockwise rotation and a rear-view plug clock at 6 o’clock, so matching the electrical connector and bracket layout is important for proper fitment. Confirm belt alignment with the 6-groove pulley and inspect the charging circuit, battery condition, and drive belt before completing the repair.

Quality Assurance

Bosch remanufactured alternators are built and tested to meet charging-system service requirements with attention to performance and reliability. For Toyota Corolla owners needing a replacement alternator, the AL3385X provides a specification-matched option for the listed applications.