Valeo 439795 Alternator

Valeo OE Alternator for Audi Charging Systems

The Valeo 439795 alternator is a 12-volt, 180-amp replacement built for Audi charging systems that require OE-level electrical output. It uses an internal fan, internal regulator, clockwise rotation, and a 6-groove serpentine pulley to match the listed applications.

As part of the Valeo OE alternator line, this unit reflects Valeo’s long history in electrical systems and original equipment supply. It is a 100% new alternator, which helps reduce the risk associated with remanufactured units and supports consistent charging performance on Audi Q5, S4, S5, and SQ5 applications.

• 12-volt alternator with 180-amp output
• Internal fan and internal voltage regulator
• Clockwise rotation
• 6-groove pulley for serpentine belt systems
• Aluminium housing for OE-style fit and construction
• Valeo OE family replacement for listed Audi charging applications

Detailed Product Overview

Valeo part number 439795 is engineered for vehicles that need stable charging output under everyday electrical demand. The alternator’s 180-amp rating supports the vehicle’s battery charging system and electrical loads, while the internal regulator helps maintain controlled voltage delivery. This makes it a direct-fit style replacement for select 2013-2017 Audi Q5, S4, S5, and SQ5 models, including the noted production-date splits on certain 2017 Q5 and SQ5 applications. This part cross-references BBB Industries 11252 and FEL-PRO 11800 for the same application.

What This Alternator Helps Address

• Battery warning light or charging system fault codes
• Low charging voltage at idle or under load
• Dim lights or electrical instability caused by weak alternator output
• Noise or wear related to a failing alternator assembly
• Starting issues tied to insufficient battery recharge

Installation Notes and Fitment Tips

Compatible with 2017 Audi Q5, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; To 08/15/16; 180 AMP; Alternator. Compatible with 2017 Audi Q5, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; From 08/15/16; 180 AMP; Alternator. Compatible with 2013-2017 Audi S5, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 180 AMP; Alternator. Compatible with 2017 Audi SQ5, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; To 08/15/16; 180 AMP; Alternator. Compatible with 2017 Audi SQ5, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; From 08/15/16; 180 AMP; Alternator. Compatible with 2013-2016 Audi Q5, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 180 AMP; Alternator. Compatible with 2013-2016 Audi S4, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 180 AMP; Alternator. Compatible with 2014-2016 Audi SQ5, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 180 AMP; Alternator. Compatible with 2015 Audi S4, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; From 09/01/14; 180 AMP; Alternator. Compatible with 2015 Audi S4, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; To 09/01/14; 180 AMP; Alternator. Compatible with 2015 Audi SQ5, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; From 09/01/14; 180 AMP; Alternator. Compatible with 2015 Audi SQ5, N/A, VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; To 09/01/14; 180 AMP; Alternator.

Before installation, verify pulley alignment, connector style, belt routing, and the vehicle’s production date against the fitment notes. The technical number FGN20S037 and part number 439795 can be used to confirm the correct replacement during ordering and service.

Quality Assurance

Valeo is a recognized OE supplier in electrical systems, and this alternator is built as a new replacement rather than a remanufactured unit. That OE-focused construction supports consistent fitment and charging performance across the listed Audi applications.