Bosch AL4310X Alternator

Bosch Remanufactured Alternator for Subaru

This Bosch remanufactured alternator is built for 12-volt charging systems and is engineered for reliable electrical output in Subaru applications. It is a direct-fit replacement for select Subaru Impreza, Subaru Forester, and Saab 9-2X models, including vehicles that need Bosch AL4310X alternator coverage.

Bosch Premium Alternators are remanufactured, tested charging components built to deliver consistent performance and dependable operation. The AL4310X features an internal fan, internal regulator, aluminum case construction, a 5-groove pulley, clockwise rotation, and a 90-amp rating for OE-style charging system service.

Key Features

• 12-volt remanufactured alternator for charging system replacement
• 90-amp amperage rating for OE-style electrical output
• Internal fan and internal regulator design
• Aluminum case and aluminum case color
• 5-groove pulley with 54 mm outside pulley diameter
• Clockwise rotation
• External fan included and pulley included
• External regulator included
• Bosch AL4310X alternator for Subaru and Saab applications

Product Details

The Bosch AL4310X is a remanufactured alternator designed for vehicles that require stable charging performance from a 12-volt system. It uses an internal regulator and internal fan layout, with a 5S pulley configuration and 5-groove belt interface. The aluminum housing supports a durable OE-style replacement fit, while the clockwise rotation and plug configuration are matched to the listed applications. This part cross-references 23700AA541 and 32010646 for the same application.

Vehicle Fitment

• Fits 2004-2011 Subaru Impreza, N/A
• Fits 2006-2010 Subaru Forester, N/A
• Fits 2006 Saab 9-2X, N/A

Common Charging System Issues

• Battery warning light caused by alternator output loss
• Dim headlights or unstable electrical performance
• Battery not maintaining charge during normal driving
• Charging system noise related to alternator wear
• Voltage irregularities affecting vehicle electronics

Installation Notes and Tips

Verify pulley style, plug type, rotation direction, and mounting-ear orientation before installation. Confirm the vehicle uses a 12-volt charging system and match the alternator to the listed Subaru Impreza, Subaru Forester, or Saab 9-2X application. Inspect the belt condition, electrical connectors, and charging circuit before final startup to help ensure proper system operation.

Quality Assurance

Bosch remanufactured alternators are built, tested, and inspected to support dependable charging performance and consistent operation in service.