Valeo 439831 Alternator

OE-Style Alternator for Audi Q3

This Valeo alternator is a 12-volt charging component built for Audi Q3 and Audi Q3 Quattro applications from 2015-2018. It is part of the Valeo OE alternator line and is engineered with the same application focus found in original equipment charging systems.

Part number 439831 is a direct-fit replacement for vehicles that require a 140 amp alternator with a 6-groove pulley, internal fan, clockwise rotation, and aluminium housing. Valeo’s alternator expertise dates back to 1923, and this premium unit is 100% new for reduced risk of early failure.

Key Features

• 12-volt alternator for charging-system replacement
• 140 amp output for Audi Q3 electrical demand
• Internal fan design for integrated cooling
• Clockwise rotation with 6-groove pulley
• Aluminium housing for OE-style fit and durability
• Valeo OE family construction
• Technical number: TG14C056

Product Details

Valeo 439831 is an OE-style alternator designed for 2015-2018 Audi Q3 and 2015-2018 Audi Q3 Quattro models. It matches the listed 140 amp specification and uses the correct pulley groove count, rotation direction, and housing material for the application. Valeo’s original equipment background and focus on charging-system innovation make this a practical replacement when restoring proper alternator output on Audi Q3 platforms.

This part cross-references Remy 11214 and Anchor 10274 for the same application.

What It Helps Fix

• Battery warning light caused by alternator output loss
• Low charging voltage at the battery
• Electrical accessories that dim or operate inconsistently
• Starting issues related to insufficient system charging
• Noise or wear concerns from a failing alternator assembly

Installation Notes

Verify the vehicle’s alternator specification before installation, including 12-volt system voltage, 140 amp rating, 6-groove pulley, and clockwise rotation. Confirm connector and mounting match the original unit on the Audi Q3 or Audi Q3 Quattro. Inspect the drive belt and charging circuit during replacement to help ensure proper system performance after installation.

Quality Assurance

Valeo is a long-standing OE supplier in electrical systems, and this alternator is built as a 100% new unit rather than a remanufactured part. That construction helps reduce the risk associated with premature failure and supports consistent charging performance in the specified Audi applications.