Bosch AL3310X Alternator

Bosch Remanufactured Alternator AL3310X

Bosch AL3310X is a remanufactured 12-volt alternator built for steady charging performance and dependable electrical output. It is a direct-fit charging component for select Lexus GS300 and Lexus IS300 applications with a 100 amp alternator setup.

Bosch Premium Alternators are remanufactured, tested charging units engineered to deliver consistent operation in daily driving conditions. This Bosch alternator AL3310X includes an internal fan, internal regulator, pulley, and a 6-groove pulley design with clockwise rotation.

Key Features

• 12-volt remanufactured alternator for charging-system repair
• 100 amp amperage rating for OE-style electrical output
• Internal fan and internal regulator
• 6-groove pulley with 57 mm outside pulley diameter
• Aluminum case and aluminum case material
• Clockwise rotation direction
• Plug type 312 with rear-view plug clock at 6 o’clock
• External fan included and pulley included
• External regulator included

Fitment Details

• Fits 1998-2005 Lexus GS300, N/A, to 100 amp alternator.
• Fits 2001-2005 Lexus IS300, N/A, to 100 amp alternator.

Detailed Description

The Bosch AL3310X alternator is a remanufactured replacement for vehicles that require a 12V, 100 amp charging unit with the specified plug and pulley configuration. It is built with an aluminum housing, internal fan, and internal regulator to match the electrical and mechanical requirements of the listed Lexus applications. For shoppers searching for a Lexus GS300 alternator or Lexus IS300 alternator, this part number provides a focused OE-style replacement option. This part cross-references OE numbers 2706046270 and 2706046300 for the same application.

What It Helps Address

• Battery warning light caused by weak alternator output
• Low charging voltage at idle or while driving
• Dim lights or unstable electrical performance
• Charging-system failure on Lexus GS300 and Lexus IS300 models
• Noisy or worn alternator assembly replacement needs

Installation Notes and Tips

Verify the vehicle uses a 100 amp alternator and confirm the plug type, pulley groove count, and rotation direction before installation. Match the mounting ear orientation and rear plug clock position to the original unit. Inspect the belt condition and charging-system connections during replacement to help ensure proper operation after installation.

Quality Assurance

Bosch Premium Alternators are remanufactured, built, and tested to support reliable charging performance. The AL3310X follows Bosch’s premium alternator line standards for fit, function, and electrical consistency in the specified Lexus applications.