Valeo 439566 Alternator

Valeo 439566 Alternator for BMW V8 Charging Systems

The Valeo 439566 alternator is a 12-volt, 180-amp replacement built for BMW charging systems that require stable electrical output. It is a Valeo OE alternator with an internal fan, clockwise rotation, and a 6-groove pulley for direct-fit service on select BMW 550i, 650i, 750i, and 750Li applications.

Key Features

• 12-volt alternator with 180-amp output
• Internal fan design for integrated cooling
• Clockwise rotation direction
• 6-groove pulley configuration
• Aluminium housing for OE-style fit and durability
• Valeo OE family replacement, part number 439566
• Technical number: TG17C035

Product Line Details

Valeo Alternator products are built around the company’s long history in electrical systems and original equipment supply. This Valeo OE alternator line focuses on direct replacement fitment and consistent charging performance, with premium units supplied as 100% new components to reduce the risk associated with remanufactured parts. The 439566 alternator is engineered for BMW charging demands where stable voltage delivery matters.

Detailed Description

Use the Valeo 439566 when replacing a worn or failed alternator on select BMW models that use a 180-amp charging system. This alternator is listed for 2006-2010 BMW 550i, 2006-2010 BMW 650i, 2006-2008 BMW 750i, and 2006-2008 BMW 750Li. It cross-references Bosch AL9357X for the same application. The part number 439566 is also associated with OE-style interchange references including 12317542935 and TG17C035.

What It Helps Solve

• Battery warning lights caused by weak alternator output
• Low charging voltage during idle or driving
• Electrical system instability from a failing generator
• Accessory performance issues tied to insufficient amperage
• Starting problems related to poor battery recharge

Installation Notes and Tips

• Confirm pulley groove count, rotation direction, and amperage rating before installation.
• Verify the vehicle uses the listed Valeo OE alternator configuration for your BMW 550i, 650i, 750i, or 750Li.
• Inspect the drive belt, tensioner, and battery condition when replacing the alternator.
• Check charging system voltage after installation to confirm proper operation.

Quality Assurance

Valeo has supplied original equipment electrical components since 1923 and is recognized as a global OE alternator supplier. The 439566 alternator is a 100% new unit, not a remanufactured part, which supports consistent build quality for BMW charging system service.