Valeo 439817 Alternator

OE Alternator for Audi Q7

This Valeo alternator is a 12-volt, 220-amp charging unit built for the 2013-2015 Audi Q7. As part of the Valeo OE family, it is engineered with an internal fan, clockwise rotation, and a 6-groove pulley for direct-fit charging system service.

Key Features

• Valeo Alternator, part number 439817
• 12-volt electrical system with 220-amp output
• Internal fan design for charging system cooling
• Clockwise rotation direction
• 6-groove pulley configuration
• Aluminium housing for OE-style fit and finish
• Technical number FGN23S066

Product Line Details

Valeo OE alternators are built within the brand’s original equipment-focused electrical line. Valeo has supplied alternators to vehicle manufacturers for decades, and this OE family emphasizes factory-style electrical performance and consistent charging output for modern vehicles with higher electrical demand.

Detailed Description

Valeo 439817 is a replacement alternator for Audi Q7 models equipped with the OE-specified charging system. It is designed for 2013-2015 Audi Q7 applications and matches the vehicle’s 12V system requirements, 220-amp amperage rating, internal fan layout, clockwise rotation, and 6-groove belt drive. This part cross-references Four Seasons 20648 for the same application.

What This Alternator Helps Address

• Battery warning lights caused by weak charging output
• Low-voltage conditions during driving or idle
• Charging system noise related to alternator wear
• Electrical instability from a failing Audi Q7 alternator
• Reduced charging performance under accessory load

Installation Notes and Tips

Verify pulley groove count, rotation direction, and amperage rating before installation. Confirm the vehicle uses the 12V charging system and compare the OE unit to the replacement alternator for connector and mounting alignment. For 2013-2015 Audi Q7 alternator replacement, matching the original belt path and electrical specifications is important for proper operation.

Quality Assurance

Valeo positions this alternator within its OE electrical systems lineup and states that its premium alternators are 100% new, which helps reduce the risk associated with reused internal components. The brand also notes its alternator engineering has been recognized for improving charging performance and fuel economy-related efficiency.