Remy 12888 Alternator

Remanufactured Alternator for BMW M5 and M6

The Remy 12888 is a premium remanufactured 12-volt alternator built for charging-system service on select BMW performance models. It delivers 170 amps with an internal fan, internal voltage regulator, clockwise rotation, and a pulley included for direct replacement use.

Compatible with 2006-2010 BMW M5 and 2006-2010 BMW M6 applications, this alternator is a fitment-based replacement for vehicles using the OE Valeo design. The Remy Premium Remanufactured line focuses on restoring core electrical performance for demanding charging and starting systems.

Key Features

• 170 amp output for BMW charging-system replacement
• 12-volt alternator with internal voltage regulator
• Internal fan design for integrated cooling
• Clockwise rotation
• Pulley included
• Remanufactured to OE-style specifications
• OE manufacturer reference: Valeo

Detailed Product Information

Remy part number 12888 is a remanufactured alternator for BMW M5 and BMW M6 models from 2006 through 2010. It is built around the OE Valeo application and is specified at 170 amps, making it a direct-fit electrical replacement for vehicles that require stable charging output under performance driving conditions. If you are searching for a BMW M5 alternator 170 amp replacement or a BMW M6 alternator remanufactured OE Valeo style unit, this part number 12888 matches those needs.

This part cross-references BMW OE numbers 12-31-7-834-160 and 12-31-7-836-592 for the same application.

What It Helps Address

• Battery warning light caused by alternator output loss
• Low charging voltage during engine operation
• Dim lights or electrical instability
• Charging-system failure on BMW M5 and M6 models
• Noise or wear associated with a failing alternator assembly

Installation Notes and Tips

Verify pulley alignment, connector style, and mounting points against the original Valeo unit before installation. Confirm that the vehicle uses the correct 170 amp charging specification and inspect the belt drive, battery condition, and related charging-system wiring when replacing the alternator. For BMW M5 and BMW M6 applications, proper system testing after installation helps confirm charging voltage and regulator operation.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured electrical components built to restore OE-style function for charging and starting systems. Part number 12888 is specified for direct replacement use on the listed BMW applications.