Bosch AL3371X Alternator

Bosch Remanufactured Alternator for Toyota Highlander

The Bosch AL3371X remanufactured alternator is built for 12-volt charging systems and engineered for dependable electrical output in select Toyota Highlander applications. It features an internal regulator, internal fan, clockwise rotation, and a 100-amp amperage rating for consistent charging performance.

Bosch Premium Alternators are remanufactured, tested, and built to deliver reliable operation in demanding daily driving conditions. This unit includes a pulley, uses a 6-groove pulley design, and is finished with an aluminum case and aluminum housing construction.

Key Features

• Remanufactured Bosch alternator, part number AL3371X
• 12-volt charging system with 100-amp output
• Internal voltage regulator and internal fan
• Clockwise rotation
• 6-groove pulley included; 58 mm outside pulley diameter
• Aluminum case and aluminum case material
• Plug type 917 with rear-view plug clock position at 6 o’clock
• One-wire capable: No
• External regulator included: No

Detailed Description

The Bosch AL3371X is a remanufactured alternator designed for select 2010-2017 Toyota Highlander models, including 2013-2017 Toyota Highlander and 2010-2012 Toyota Highlander configurations noted for Japan-built and non-Japan-built applications. If you are searching for a Toyota Highlander alternator replacement, this Bosch unit provides the correct electrical architecture for vehicles specified to use a 100-amp alternator. The AL3371X is also referenced by interchange part numbers 270600V070 and 2706036020 for the same application.

Common Issues This Part Can Address

• Battery warning light caused by alternator charging failure
• Low system voltage affecting lights, accessories, or starting performance
• Intermittent charging output from a worn alternator
• Noise from a failing alternator bearing or internal component wear
• Electrical instability in a Toyota Highlander charging system

Installation Notes and Tips

• Verify the vehicle’s original alternator is a 100-amp unit before ordering.
• Confirm plug type 917 and the rear mounting-ear clock position match the original unit.
• Check belt alignment and pulley groove count during installation.
• Inspect the battery and charging cables after alternator replacement to confirm proper system voltage.
• Use the vehicle’s exact year, engine, and build origin details to match the listed Highlander fitment.

Quality Assurance

Bosch remanufactured alternators are built, tested, and inspected to meet charging-system performance and reliability requirements for replacement use. The Bosch AL3371X is a remanufactured OE-style charging component for select Toyota Highlander applications.