Valeo 439800 Alternator

Overview

Valeo alternator 439800 is a 12-volt, 180-amp charging unit built with an internal fan, clockwise rotation, and a 6-groove pulley. It uses an aluminum housing and is part of the Valeo OE family for applications that require stable electrical output.

Compatible With select Audi A6 Quattro, Audi A7 Quattro, and Audi Q5 models, this Valeo alternator 439800 is a direct-fit charging solution for vehicles listed in the fitment data.

Key Features

• 12-volt alternator with 180-amp output for demanding electrical loads.
• Internal fan design for integrated cooling.
• Clockwise rotation and 6-groove pulley configuration.
• Aluminum housing for a lightweight, durable construction.
• Valeo OE family part engineered for listed applications.

Detailed Description

Valeo 439800 is a premium alternator built as a 100% new unit, which removes the uncertainty associated with reused internal components. The OE-family design, 12-volt system, and 180-amp rating make it a strong match for vehicles that need consistent charging performance under electrical demand. The internal fan and aluminum housing support efficient operation and packaging, while the clockwise rotation and 6-groove pulley help ensure proper belt alignment in the specified applications.

This part cross-references Monroe Shocks & Struts (e.g., 478135, 059903018Q) for the same application.

Fits 2014-2016 Audi A6 Quattro, N/A. Fits 2014-2016 Audi A7 Quattro, N/A. Fits 2014-2016 Audi Q5, N/A.

What It Solves

• Weak or inconsistent battery charging.
• Electrical system strain from higher accessory demand.
• Charging output loss caused by worn internal components.
• Belt-drive mismatch from an incorrect pulley or rotation setup.

Installation Notes and Tips

Verify the vehicle’s original alternator specifications before installation, including voltage, amperage, pulley groove count, and rotation direction. Confirm belt routing and connector compatibility against the existing unit and the vehicle service information for the listed Audi applications.

Quality Assurance

Valeo has supplied original equipment electrical components since 1923. Its alternator technology has also been recognized with a PACE Award for reducing voltage drop and improving fuel economy in charging-system applications.