Remy 12279 Alternator

Remanufactured Alternator for BMW Charging Systems

The Remy Premium Remanufactured alternator Part Number 12279 is built for BMW charging-system service where OE-style fit and electrical output matter. It delivers 115 amps at 12 volts with an internal regulator, internal fan, clockwise rotation, and an included pulley for direct replacement use.

Compatible With 2001-2002 BMW Z3 and 2001 BMW M3 applications, this alternator is a remanufactured unit sourced to match the original Valeo design. The Remy Premium Remanufactured line focuses on OE-based replacement components for drivers and repair shops that need a dependable charging-system solution.

Key Features

• Remy Premium Remanufactured alternator, Part Number 12279
• 115 amp amperage rating for factory-style charging output
• 12-volt electrical system with internal voltage regulator
• Internal fan design and clockwise rotation
• Pulley included for application-specific replacement
• OE manufacturer reference: Valeo
• Cross-reference part numbers include BMW 12-31-1-405-902 and A13VI180

Detailed Description

This alternator is a remanufactured electrical component for BMW charging and starting systems. It is specified for 2001-2002 BMW Z3 and 2001 BMW M3 models, making it a direct-fit option for owners searching for a BMW Z3 alternator 115 amp replacement or a BMW M3 alternator Part Number 12279. The internal regulator and internal fan support a compact OE-style configuration, while the included pulley and clockwise rotation match the listed application requirements.

As part of the Remy Premium Remanufactured product line, this unit is positioned as an OE-based replacement for vehicles originally equipped with a Valeo alternator. If you are replacing a worn charging unit on a BMW Z3 or BMW M3, this part number provides a clear match for the listed fitment and electrical specifications.

What This Alternator Helps Address

• Battery warning light caused by charging-system output loss
• Low-voltage conditions during driving or idle
• Dim lights or inconsistent electrical performance
• Alternator noise or bearing-related charging issues
• Failure of the original Valeo-style alternator assembly

Installation Notes and Tips

Verify the vehicle’s original alternator specifications before installation, including amperage rating, rotation direction, pulley configuration, and regulator type. Confirm fitment for 2001-2002 BMW Z3 and 2001 BMW M3 applications before ordering. Inspect the belt drive, electrical connectors, and charging cables during replacement to ensure the new alternator operates correctly after installation.

Quality Assurance

Remy Premium Remanufactured components are remanufactured to serve as OE-style replacement parts for the listed BMW applications. This alternator is built around the original Valeo design reference and the published electrical specifications for accurate fitment and charging-system service.