Valeo 439583 Alternator

Valeo 439583 Alternator Overview

The Valeo 439583 alternator is a 12-volt charging system component built for Mercedes-Benz applications that require a 180-amp output. As part of the Valeo OE family, this alternator reflects Valeo’s long history in electrical systems and its role as an original equipment supplier for select vehicles.

For 2007-2008 Mercedes-Benz ML320 and Mercedes-Benz R320 applications, this Valeo alternator provides the correct internal regulator, internal fan design, clockwise rotation, and single-groove pulley configuration. The aluminium housing supports a durable OE-style replacement for charging system service.

Key Features

• Part number: 439583
• 12-volt alternator with 180-amp amperage rating
• Valeo OE family construction
• Internal regulator and internal fan
• Clockwise rotation direction
• Single pulley groove design
• Aluminium housing material
• Technical number: TG17C032

Product Line Details

Valeo Alternator products are built around OE-level electrical system requirements. This line focuses on direct-fit charging components that match factory specifications for voltage control, output, and packaging, making it a practical choice when replacing a worn alternator on Mercedes-Benz ML320 or Mercedes-Benz R320 models.

Detailed Description

Valeo 439583 is a 12V alternator engineered for vehicles that use a 180-amp charging system and an internal voltage regulator. It is listed for 2007-2008 Mercedes-Benz ML320 and Mercedes-Benz R320 applications, including the OE-supplier configurations noted in the fitment data. This part cross-references Bosch AL9362X for the same application.

Built with an aluminium housing and clockwise rotation, this alternator is specified with one pulley groove and an internal fan layout. Those details matter when matching the factory charging system on Mercedes-Benz ML320 and Mercedes-Benz R320 models, especially when replacing a failed unit with an OE-style component.

What This Alternator Helps Address

• Battery warning light caused by alternator output loss
• Low charging voltage at the battery
• Electrical system instability during driving
• Dim lights or accessory performance issues from weak charging
• Charging failure on Mercedes-Benz ML320 and Mercedes-Benz R320 applications

Installation Notes and Tips

Verify the vehicle’s build date and OE alternator specifications before installation, especially for 2007-2008 Mercedes-Benz R320 applications with date-specific notes. Confirm the pulley groove count, rotation direction, amperage rating, and regulator type match the original unit. Inspect the belt condition, battery state, and charging circuit connections during replacement to help ensure proper system operation.

Quality Assurance

Valeo has supplied electrical system components since 1923 and is recognized as an OE alternator supplier. This alternator is 100% new, which helps reduce the risk associated with remanufactured units and supports consistent charging performance in the specified Mercedes-Benz applications.