Bosch AL0857X Alternator

Bosch Remanufactured Alternator for Saab

The Bosch AL0857X remanufactured alternator is built for 12-volt charging systems that need stable output and dependable electrical performance. It is a direct-fit charging component for select Saab 9-5 and Saab 9-3 applications, with a 140-amp rating and internal fan and regulator design.

Bosch Premium Alternators are remanufactured, tested, and configured to deliver consistent charging performance for daily driving and demanding electrical loads. This Bosch AL0857X alternator includes a pulley, uses a 6-groove belt setup, and features clockwise rotation with an aluminum case.

Key Features

• Remanufactured Bosch alternator for 12-volt charging systems
• 140-amp amperage rating for select Saab electrical systems
• Internal fan and internal regulator design
• Clockwise rotation with 6-groove pulley configuration
• Aluminum case and aluminum case color
• Pulley included and external fan included
• Plug type 381 with rear-view plug clock position at 6 o’clock
• Cross-reference part number: 12770124

Product Details

The Bosch AL0857X is a remanufactured alternator engineered for select Saab charging-system applications. It is listed for 2008-2009 Saab 9-5 and 2001 Saab 9-3 vehicles, including the 140-amp alternator application on the 2001 Saab 9-3. The AL0857X part number is a useful reference when matching the correct Bosch replacement for these vehicles.

Built with an internal fan, internal regulator, and 6S-DP pulley type, this alternator is configured for OE-style fitment and charging performance. The aluminum housing helps keep the unit lightweight while maintaining the structure needed for underhood electrical service. Bosch remanufacturing and testing processes are used to verify the unit before it is boxed for installation.

Common Charging Problems This Part Addresses

• Battery warning light caused by alternator output loss
• Low charging voltage during idle or accessory use
• Dim headlights and unstable electrical performance
• Battery drain from a failing alternator
• Noise or belt-drive issues related to a worn alternator assembly

Installation Notes and Tips

Verify plug type 381, pulley configuration, and 6-groove belt alignment before installation. Confirm the vehicle’s charging-system requirements and match the alternator to the listed Saab 9-5 or Saab 9-3 application. Inspect the belt, tensioner, and electrical connections during replacement to help ensure proper charging-system operation.

Quality Assurance

Bosch remanufactured alternators are built, tested, and inspected to support reliable charging performance. The AL0857X is packaged in a box and supplied as a remanufactured Bosch charging component for the listed Saab applications.